Brochure Coating Raw Materials for Building Protection 14-06-2011 E
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Transcript of Brochure Coating Raw Materials for Building Protection 14-06-2011 E
Polyisocyanates PrePolymers DisPersions UV systems
C O A T I N G R A W M A T E R I A L S
F O R B U I L D I N G P R O T E C T I O N
2
r rn nH H
o
3
Desmolith®
Desmodur®
Bayhydur®
Desmophen®
Bayhydrol®
Desmocap®
introDUction 5
General inFormation 6
tecHnoloGies
two-component polyurethane (solvent-free/solventborne/aqueous) 7–9
one-component polyurethane (aliphatic/aromatic/latent hardeners) 10
other technologies (Desmocap®/Desmolith®) 11–12
Polyurea (aliphatic/aromatic) 13
aPPlications
industrial flooring 15
sports flooring 17
Decorative flooring 19
Hygiene areas 21
Parking decks 23
Flat roofs 24
Balconies & patios 25
Garages & basements 26
Walls & facades 27
Products & key figures 28–29
abbreviations in tables 30–31
CONTENTS
Polyisocyanates PrePolymers DisPersions UV systems
4
5
stability, reliability and safety are top pri-
orities in the construction industry.
that is why the production of customized,
high-quality construction materials has
always been a key market segment for us.
Bayer materialscience produces a compre-
hensive range of polyurethane raw materi-
als for a variety of applications in the field
of construction. the coatings, adhesives
and specialties (cas) Business Unit mar-
kets these polyurethane raw materials for
manual application on construction sites.
they are used to manufacture sports and
industrial flooring and coatings for roofs
and in many other special construction
applications.
Whether they are helping hospital floors
to comply with hygiene standards and
vehicles to find the right grip on parking
decks or simply protecting concrete patios
in homes from corrosion, the chemical
formulation of polyurethane coatings can
be adapted to meet every need and, in
special cases, can even be given decorative
properties.
Why not glance through the next few pages
and see the outstanding quality of Bayer
materialscience products for yourself?
check out the chemical properties of poly-
urethane products and gain an insight into
the one- and two-component technolo-
gies used to manufacture multifunctional
construction materials. these processes,
together with Desmocap®, Desmolith®
and polyurea technologies, form build-
ing blocks for the wide range of possible
applications.
Familiarize yourself with the numerous
areas of application of this successful
product technology. see how the diver-
sity and capabilities of polyurethanes from
Bayer materialscience can help you to
resolve demanding tasks.
Did you know that polyurethane grades
from Bayer materialscience supply almost
a quarter of the demand for coating raw
materials on the european market? that’s
around 50,000 metric tons in total. these
figures speak for themselves – and for
us. there are good reasons why we are
the market and technology leader in poly-
urethane raw materials. in addition to our
extensive range of products, we offer cus-
tomers a comprehensive technical service
and are an expert and dependable partner
for the processing construction industry.
Put us to the test! We will find the perfect
solution for you.
INTRODUCTION
6
in general usage, the term polyurethane
is used for the product of reactions
between polyisocyanates and polyalco-
hols, polyamines and/or water, whereby
the latter can be in the form of liquid or
moisture in the air. in reality, however, not
every polyurethane formulation is suitable
for the same areas of application. careful
distinctions must be made.
With the exception of diphenylmeth-
ane diisocyanate (mDi), which is unique
because of its low vapor pressure and
correspondingly low volatility, monomer
diisocyanates such as toluene diisocy-
anate (tDi), hexamethylene diisocyanate
(HDi) or isophorone diisocyanate (iPDi)
are, for industrial hygiene reasons, used in
the coating sector only as high-molecular
polymers (adducts, homopolymers, pre-
polymers). in the production of polyisocy-
anate coating raw materials, the main aim
is to achieve the lowest possible residual
monomer content.
coating materials also differ in the way
they are processed. in the case of two-com-
ponent technology, two components are
mixed homogeneously prior to processing
the structural protection product, result-
ing in a reaction mix that needs to be
processed within a limited period of time.
one-component technology, by contrast,
requires no mixing to stimulate the reac-
tion between a formulated polyisocyanate
and moisture in the air and thereby allows
long processing times.
T E C H N O L O G I E S
GENERAL INFORMATION
7
Solvent-free two-component poly-
urethanes
Use of solvent-free raw materials allows
coatings of any thickness to be produced.
the two-component polyurethane systems
therefore consist of solvent-free polyalco-
hol and polyisocyanate components.
the functionality of both these compo-
nents, their molecular weight and the
chemical structure are instrumental in
determining the mechanical properties and
resistance to chemicals of the reaction
product.
low functionality (but of at least 2)
and a high molecular weight, for exam-
ple, produce plastic to elastic coatings
with low chemical resistance. However,
if the functionality of reactants is high
and their molecular weight low, the result
is extremely hard coatings with excellent
chemical resistance.
the solvent-free two-component poly-
urethane systems are usually hydrophobic.
this largely prevents the competing chemi-
cal reaction with air moisture, which gener-
ates carbon dioxide and should therefore
be avoided. although air moisture enters
the reaction system through the addition
of fillers and pigments, the use of water
scavengers prevents the polyisocyanate
coming into contact with it. Zeolites with
an adsorbent effect are normally added.
these types of standard polyurethane
systems based on polyether ester poly-
alcohols and, where possible, modified
polymer mDi harden at temperatures of
between 5 °c and 30 °c, even at a relative
humidity of over 90 %. the result is a pore-
free coating of high thickness and excellent
surface quality.
There are three different types of two-component polyurethane technology: solvent-free,
solventborne and aqueous.
S O L V E N T - F R E E , S O L V E N T B O R N E , A Q U E O U S
F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4* at 25 °c
* at 25 °c
Desmodur® Characterization Supply form
Viscosity [mPa·s at 23 °C]
Functionality NCO- content
Emulsifi- ability
TSCA
VH 20 n mDi polymer, low viscosity 100 % 280* 24.5 % no yes
Vl mDi polymer, low viscosity 100 % 90* 31.5 % no no
n 3900 HDi trimer, low viscosity 100 % 730 23.5 % no yes
Desmophen® Characterization Supply form
Viscosity [mPa·s at 23 °C]
Eq. weight OH-content Solvent content
TSCA
1145 Polyether ester polyol 100 % 2,950 240 7.1 % 0 % yes
1150 Polyether ester polyol 100 % 3,500 360 4.7 % 0 % yes
1155 Polyether ester polyol 100 % 425 340 5.0 % 0 % yes
5028 Gt Dispersion polyether 100 % 3,600* 1.970 0.9 % 0 % yes
1380 Bt Polyether 100 % 600* 146 11.7 % 0 % yes
VP ls 2068 Polyester polyol 100 % 950 315 5.4 % 0 % yes
VP ls 2249/1 Polyester polyol 100 % 1,900 110 15.5 % 0 % yes
c 1100 carbonate polyester polyol 100 % 3,200 500 3.3 % 0 % yes
r-n=c=oPolyisocyanate
r’-oHPolyalcohol
Polyurethane
r r’nH
o
o
r-n=c=oPolyisocyanate
r’-nH2amine
Polyurea
r r’n nH H
o
TWO-COMPONENT
POLYURETHANE TECHNOLOGY
tecHnoloGies aPPlications
8
Solventborne two-component poly-
urethanes
the solvents used in these two-component
polyurethane systems limit the coating
thickness and prevent foaming. However,
it is also possible to use more hydrophilic
substances whose viscosity can be set via
the volume of solvent. solventborne two-
component polyurethane systems are used
mostly in the production of topcoats. the
properties of these topcoats (e.g. gloss,
abrasion resistance and chemical resist-
ance) can be adjusted to meet the customer’s
needs and wishes. this type of coating has
reliably protected concrete surfaces from
environment-related attacks for many years
thanks to its exceptional properties – in par-
ticular its weathering resistance in outdoor
applications. our decades of experience in
selecting binder components and formula-
tions enable properties to be customized
to different requirements.
F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4
Desmodur® Characterization Supply form
Viscosity [mPa·s at 23 °C]
Functionality NCO- content
Emulsifi- ability
TSCA
n 75 mPa/X HDi biuret, low viscosity 75 % 250 16.5 % no yes
XP 2406iPDi prepolymer, very low viscosity
80 % 7,000 2.8 % no yes
Desmophen® Characterization Supply form
Viscosity [mPa·s at 23 °C]
Eq. weight OH-content Solvent content
TSCA
651 mPa/X Polyester polyol 67 % 25,000 310 5.5 % 33 % yes
rD 181 Polyester polyol 75 % 7,500 460 3.7 % 25 % yes
9
Aqueous two-component polyurethane
technology
as with any polyurethane, to produce
aqueous polyurethane coatings hydroxyl
groups must react with isocyanate groups.
this is the chemical basis. However, this
process has one special feature – the bind-
ers consist of an aqueous dispersion com-
ponent and a hydrophilic polyisocyanate.
this means that a secondary reaction takes
place between the isocyanate groups and
water. Urea groups are formed during this
process. the scope of this reaction is much
smaller than the reaction resulting in poly-
urethane. this is because the reaction rate
is slower. also the water evaporates from
the coating film relatively quickly after
application.
two-component polyurethane technology
has another benefit, however. By selecting
suitable raw materials and additives, the
crosslinking reactions can be controlled
accurately. Pot life and cure time can also
be decoupled using internally activated
dispersions, such as Bayhydrol® a 2546
and Bayhydrol® a 2646. Final hardness can
thus be reached much more quickly at the
same pot life, or the hardening reaction
can take place at lower temperatures.
the above low Voc dispersions are best
combined with low-viscosity solvent-free
hydrophilic polyisocyanates (Bayhydur®
XP 2451 and Bayhydur® XP 2547). these
can be easily incorporated and are ideal
for low-Voc topcoats. such coatings lend
themselves especially well to indoor use as
they meet the very high demands of indoor
environments with respect to air quality.
F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4
Bayhydur® Characterization Supply form
Viscosity [mPa·s at 23 °C]
Functionality NCO- content
Emulsifi- ability
TSCA
XP 2451*HDi trimer/uretdione, hydrophilic
100 % 1,200 18.5 % yes yes
XP 2547HDi trimer, slightly hydrophilic
100 % 650 22.5 % yes yes
Bayhydrol® Characterization Supply form
Viscosity [mPa·s at 23 °C]
Neutral. amine
OH-content Cosolvent content
TSCA
a 2457 Primary Pac dispersion 41 % ‹ 100 nH3 1.1 % 0 % no
a 2542 secondary Pac dispersion 50 % 1,500 –3.000 trieta 2.7 % 1.1 % PnB yes
a 2546 Primary Pac dispersion 41 % ‹ 200 nH3 1.7 % 0 % yes
a 2646 secondary Pac dispersion 50 % 1,500 –3,000 trieta 2.7 % 1.1 % PnB yes
PnB = Dowanol PnB, oH-functional/eDiPa = ethyldiisopropylamine/trieta = triethanolamine
Secondary reaction
Main reaction r-n=c=oPolyisocyanate
r’-oHPolyol dispersion Polyurethane
r r’nH
o
o
r-nH22. r-n=c=o r rn nH H
o
1. r-n=c=o H2o r-nH2 co2
1. + 2. H2oWater
2 r-n=c=oPolyisocyanate
Polyurea carbon dioxide
r rn nH H
o
co2
tecHnoloGies aPPlications
* not for spray application
1 0
one-component coatings react with water,
which is present as substrate or air mois-
ture almost everywhere. the second com-
ponent needed for the hardening process is
therefore delivered to your doorstep free of
charge, so to speak, thus avoiding any uncer-
tainty as to whether the two components are
mixed homogeneously.
carbon dioxide is produced during the
hardening reaction. one-component poly-
urethane products based on this conven-
tional process must therefore be used in low
coating thicknesses, mostly in conjunction
with solvents. this stops blisters forming in
the coating.
Use of latent hardeners triggers a type of
chain reaction. Just one water molecule pro-
vides several reactive groups for the reaction
with the latent hardener. as a result, less
carbon dioxide is produced and significantly
thicker coatings can be applied without blis-
ters forming.
Because of the limited coating thickness it
generates, this technology is particularly suit-
ed to seals and impregnation. elastomer or
duromer coating films with different degrees
of weathering resistance are formed depend-
ing on the prepolymer (aromatic, Desmodur®
e grades) and low-viscosity aliphatic polyiso-
cyanate (Desmodur® n) used.
the underlying products achieve good pene-
tration into absorbent substrates. moreover,
the end products are incredibly tough, abra-
sion-resistant and highly resistant to water,
chemicals and solvents.
one-component polyurethane technology
offers yet another attractive possibility – highly
filled, mortar-like coatings used mainly without
solvents. after hardening, these products form
breathable, open-pore coatings with thick-
nesses of between 4 and 10 mm. if required, a
liquid-tight surface can also be created using
an additional seal. Practical application can be
found both in load-transforming topcoats and
decorative gravels.
Desmodur® Characterization Supply form
Viscosity [mPa·s at 23 °C]
Functionality NCO- content
Emulsifi- ability
TSCA
n 3900 HDi trimer, very low viscosity 100 % 730 23.5 % no yes
n 3400 HDi uretdione 100 % 150 21.8 % no yes
e 21 mDi prepolymer 100 % 5,400* 16 % no yes
e 23 mDi prepolymer 100 % 1,800 15.4 % no yes
e 29 mDi prepolymer 100 % 220* 24.0 % no yes
Z 4470 iPDi trimer 70 % 2,000 11.9 % no yes
XP 2406 iPDi prepolymer 80 % 7,000 2.8 % no yes
Hardener VP ls 2959
aliphatic latent hardener 100 % 3,000 – no yes
F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4* at 25 °c
1. r-n=c=o H2o
r-nH22. r-n=c=o
co2
H2oWater
1. + 2. 2 r-n=c=oPolyiso- cyanate
carbon dioxide
co2
r rn nH H
o
r-nH2
Polyurea
r rn nH H
o
A L I P H A T I C , A R O M A T I C , L A T E N T H A R D E N E R S
ONE-COMPONENT POLYURETHANE
TECHNOLOGY
1 1
the Desmocap® product range consists of
blocked prepolymers that react with pri-
mary amines at room temperature. their
primary function over the last 30 years or
so has been to elasticize epoxy resins that
become brittle during curing. Hard/soft
segmentation of the binder takes place
during curing, giving the materials crack-
bridging properties over a wide range of
temperatures. thanks to low glass tran-
sition temperatures, this is also true at
temperatures well below the freezing point
of water. another advantage of these prod-
ucts is their durability. Unlike with stand-
ard plasticizers, the polyurethane structure
is incorporated into the polymer network
chemically. the resulting low-temperature
flexibility is particularly important when
materials are used as crack-bridging mem-
branes and seals, especially in outdoor
applications where special resistance to
temperature change is required. after all,
changes in daily and seasonal tempera-
tures present a challenge to every coating
material. if epoxy resin components are
not used, the cured Desmocap® products
form elastomers that are used, among
other things, in casting compounds for
soundproofing.
Desmocap® Characterization Supply form
Viscosity [mPa·s at 23 °C]
Eq. weight* OH-content Solvent content
TSCA
11 Blocked tDi prepolymer 100 % 100,000 930 – 0 % yes
12 Blocked tDi prepolymer 100 % 40,000 1,500 – 0 % yes
* with regard to eP
reaction of a blocking polyurethane with a diamine
Polyether
Polyether
r o
o o
oo o
o o
H H
n n
n n
H H
r
2 r oH-r
+ 2 H2n nH2
r nH
o o
nH
o oo o
H H
n n
n n
H H
rH2n nH2
DESMOCAP® TECHNOLOGY
O T H E R T E C H N O L O G I E S
tecHnoloGies aPPlications
1 2
this is a pseudo-aqueous three-compo-
nent system without solvent-free polyalco-
hol. instead, it uses an aqueous emulsion
of polyalcohols and an mDi-based polyiso-
cyanate. the addition of reactive fillers
such as hydrated lime as the third compo-
nent prevents the otherwise unavoidable
formation of carbon dioxide. the end result
is a fine calcium carbonate embedded in a
polyurea shell.
this produces robust coating materials
with outstanding temperature stability and
high chemical resistance – covering every-
thing from sealers to screeds.
F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4
Desmodur® Characterization Supply form
Viscosity [mPa·s at 25 °C]
Functionality NCO- content
Emulsifi- ability
TSCA
Vl mDi polymer, low viscosity 100 % 90 31.5 % no no
XP 2551mDi polymer, very low viscosity
100 % 60 32 % no yes
Desmolith® Characterization Supply form
Viscosity [mPa·s]
Eq. weight OH-content Solvent content
TSCA
VP ls 2766 Polyol alcohol emulsion 90 % 1,200 110 16 % 0 % yes
XP 2656 Polyol alcohol emulsion 70 % 150 425* 3 % 0 % yes
XP 2761 Polyol alcohol emulsion 70 % 200 565* 3 % 0 % yes
* calculated
1. co22 r-n=c=o
3. H2oca(oH)2
2. 2 r-n=c=o
1. + 2. + 3. caco32 r-n=c=o
Secondary reaction r-n=c=o
H2o r-nH2
co2 caco3
r rn nH H
o
r-nH2
r rn nH H
o
ca(oH)2
r’-oH r rnH
o
o
DESMOLITH® TECHNOLOGY
1 3
not only do polyisocyanates react with
water, leading to a moisture-curing effect,
they also react with amines, leading to the
formation of polyurea. this process is then
classed as a two-component technology.
there is one major difference to the for-
mation of polyurethane. compared with
polyalcohols, most amines are highly
reactive and therefore particularly suited
to injection applications. such injection
systems are based on mDi prepolymers
(Desmodur® e) and ether amines. they
have pot lives of seconds.
the coatings achieved in this way are par-
ticularly thick. the mechanical properties
of the coatings can be varied significantly
however you choose – from highly flexible
to ultra hard. Hand-processable coating
compounds can also be formulated using
sterically hindered amines. these materi-
als are ideal for use in seals and mem-
branes due to their elastic properties over
a wide range of temperatures.
compared with sterically hindered grades,
the reactivity of secondary aliphatic amines
(Desmophen® nH – polyaspartics) is also
limited. When combined with aliphatic
polyisocyanates, they form lightfast coat-
ing materials. the choice of secondary
amine determines the pot life and process-
ing time, which can range from a few
seconds to a few hours depending on your
needs.
F= ‹ 3; 3 ‹ ‹ 3.4; ≥ 3.4
Desmodur® Characterization Supply form
Viscosity [mPa·s at 23 °C]
Functionality NCO- content
Emulsifi- ability
TSCA
n 3900 HDi trimer, very low viscosity 100 % 730 23.5 % no yes
n 3600 HDi trimer, low viscosity 100 % 1,200 23.0 % no yes
VH 20 nmodified mDi, very low viscosity
100 % 280* 24.5 % no yes
e 2200/76mDi prepolymer, medium viscosity
100 % 2,750* 9.9 % no yes
XP 27274.4’ mDi prepolymer, low viscosity
100 % 800 15.3 % no yes
e 15tDi prepolymer, medium viscosity
100 % 7,000 4.4 % no yes
VPls 2371iPDi prepolymer, medium viscosity
100 % 11,000 3.7 % no yes
Desmophen® Characterization Supply form
Viscosity [mPa·s at 23 °C]
Eq. weight NH-content Solvent content
TSCA
nH 1220secondary amine, highly reactive
100 % 100* 234 6.4 % 0 % yes
nH 1420secondary amine, medium reactive
100 % 1,450* 276 5.4 % 0 % yes
nH 1520 secondary amine, reactive 100 % 1,400* 290 5.2 % 0 % yes
Hardener DtPrimary amine, highly reactive
100 % 200 90 16.7 % 0 % yes
POLYUREA TECHNOLOGY
* at 25 °c
* at 25 °c
tecHnoloGies aPPlications
1 4
1 5
industrial flooring in production plants and
warehouses must be extremely resistant
to a number of factors, from chemicals and
water to mechanical, dynamic and thermal
stresses. if the right quality standards are
not met, any damage or signs of wear in
the concrete substrate quickly become a
safety risk, disrupt production routines and
give rise to additional costs.
tough to super-hard synthetic resin coating
systems have therefore been used in the
automotive, food, pharmaceutical, electri-
cal, metal and chemical industries for many
years to provide effective protection for
indoor floors exposed to extreme stresses.
thanks to its range of properties, which
is as broad as it is varied, polyurethane is
increasingly the material of choice. around
one-quarter of the many millions of square
meters of industrial flooring existing world-
wide is coated in polyurethane. it provides
a durable and cost-effective solution.
With ease of cleaning and outstanding slip
and abrasion resistance being common
to all applications, design-friendly poly-
urethane coatings for industrial flooring can
also be customized to meet precise require-
ments, whether these relate to electrical
conductivity, antibacterial properties or
emissions behavior. What’s more, because
of their toughness, polyurethane systems
can also be used to coat asphalt screeds.
all in all, polyurethane coatings can meet
even the toughest of demands and con-
tribute substantially to the long-lasting
functionality of industrial flooring. they
can be applied using common procedures,
set new technical safety standards and
even reduce production noise – much to
the delight of staff working there. they
also provide good grip for the omnipresent
forklifts on factory floors.
Primer,one-component moisture-curing
leveling layer, two-com-ponent solvent-free
topcoat, two-com-ponent solvent-free
seal, one-component aliphatic, one-component aromatic, two-component solventborne or two-component aqueous
I N D U S T R I A L F L O O R I N G
QUALITY IN PRODUCTION AND STORAGE
tecHnoloGies aPPlications
1 6
1 7
Polyurethane is incredibly sporty for a plas-
tic. Used as a point or area elastic cover-
ing for sports flooring both indoors and
outdoors, smart polyurethane coatings
ensure the perfect bounce for basketball
or handball players, a must-have property
in this field.
track and field athletes also benefit from
the optimal and customizable elastic prop-
erties of polyurethane systems for sports
halls and outdoor facilities. the good
rebound properties and outstanding slip
resistance of running surfaces coated in
polyurethane systems helps achieve top
sporting results.
alongside the excellent elasticity of largely
wear-resistant polyurethane sports surfaces,
the risk of injury is also reduced greatly – for
all sports. surfaces coated in this way pro-
vide excellent grip, spare athletes’ physiol-
ogy and cushion impact.
suitably formulated polyurethane coatings
meet international quality standards for
the use of plastic in sports flooring and
extend the service life of these surfaces.
the variable hardness of polyurethane top-
coats even meets the strict requirements
needed for physiotherapy.
What is more, polyurethane systems are
used to coat the floors of multi-purpose
halls. multiple coatings are recommended
in this case to withstand the higher loads
of mass events, table and chair legs or
stiletto heels. Besides, any damage that
does occur can usually be repaired quickly
and simply.
Primer
rubber granule mat
self-leveling topcoat,aromatic two-compo-nent polyurethane
Pore filler, aromatic two-component poly-urethane
seal, aliphatic two-com-ponent polyurethane
marks
S P O R T S F L O O R I N G
A REAL TEAM PLAYER –
MADE OF PLASTIC
tecHnoloGies aPPlications
1 8
1 9
ever greater demands are being made of
flooring in public and commercial estab-
lishments such as administration build-
ings, offices, foyers, exhibition and concert
halls, shops and malls. But it is not just
a question of functionality. in addition to
the usual considerations – such as ease of
cleaning, excellent durability, antiallergenic
aspects, cost-effectiveness and above-
average safety – greater emphasis is now
being placed on decorative properties. as
well as fulfilling their actual purpose, high-
ly stressed large areas of flooring also have
to look good.
the extensive properties of polyurethane
open new doors for attractive and high-cal-
iber artistic floor design. additional color
chips or other design elements can easily
be added to the transparent or single-color
synthetic resin matrix during application.
Uninspired flooring thus becomes stylish-
ly designed “polyurethane carpets” that
are colorful, jointless, non-yellowing and,
above all, much more resilient than their
textile counterparts.
self-leveling polyurethane floor coatings
allow you to combine all the advantages of
polyurethane technology, with its proven
track record extending over decades, with
a decorative design and a high degree of
design flexibility.
the outcome is a real work of art that can
withstand even heavy loads with barely
a scratch thanks to the tough, impact-
resistant and chemical-resistant topcoat.
and if any damage is incurred, it can easily
be repaired – as with other polyurethane
floor coatings. they just need to be sanded
down to the necessary level and resealed
with a transparent coating.
Primer,one-component moisture-curing
leveling layer, two-com-ponent solvent-free
topcoat, two-component solvent-free
seal, one-component aliphatic, one-component aromatic, two-component solventborne or two-component aqueous
D E C O R A T I V E F L O O R I N G
GIVE YOUR EYES A TREAT
tecHnoloGies aPPlications
2 0
2 1
Hygienic areas pose a particularly impor-
tant challenge for the developers and sup-
pliers of modern raw materials and coating
systems for floors. these areas include
production and storage areas for the phar-
maceutical and food industries and their
distributors, schools, kindergartens, hos-
pitals and nursing homes.
High-performance high-end floor coat-
ings with added functions are increasingly
being used in such places to protect peo-
ple and their health. after all, all potential
health risks must be contained in these
highly sensitive areas to maximize long-
term safety and hygiene. Heavily frequent-
ed floors are a breeding ground for mold
and bacteria especially if they are offered
a welcome recess in the form of hard-to-
clean joints.
Because polyurethane coating systems
are ideal for jointless use on large use-
able areas, they are often used for hygi-
enic applications. in addition to their good
mechanical properties and long-lasting
protection for floors, a decisive factor in
their favor is the ease with which they
can be cleaned and maintained. By fine-
tuning the parameters, extremely high
chemical resistance can also be achieved
as is required to withstand various clean-
ing routines or in pharmaceutical research
and production. optionally, polyurethane
systems can also be given antibacterial
properties by applying a suitable additive.
if the top priority is to protect health and
thus significantly improve safety, as is the
case in hygienic areas, polyurethane coat-
ing systems are the ideal solution.
H Y G I E N E A R E A S
HEALTH AND SAFETY ARE PARAMOUNT
Primer,three-componentDesmolith®
leveling layer, three-component Desmolith®
Wearing layer,three-component Desmolith®
tecHnoloGies aPPlications
2 2
2 3
you would never know it from first sight,
but the reinforced concrete floors of park-
ing decks have a lot to put up with. not
only do they have to withstand the weight
of cars, but their lanes, entrances and
exits must also make drivers feel safe and
secure at all times.
thanks to their exceptional slip resist-
ance and high mechanical and dynamic
load-bearing capacity, viscoplastic and
abrasion-resistant polyurethane coatings
are ideal for large-scale use on parking
deck substrates. Jointless and usually
processed in combination with epoxy resin
primers, they bridge the cracks in concrete
surfaces that are unavoidable due to con-
sistently heavy loads and easily cope with
road salt, automobile fluids and rainwater.
the underlying steel structure is thus per-
manently protected against corrosion.
since older cars in particular have a ten-
dency to leak, the polyurethane coat-
ings on parking decks also stop harmful
substances leaching into the earth and
groundwater and thus protect the environ-
ment. all this while providing excellent
reliability, optimal surface grip even in
the rain, no-fuss cleaning and resistance
to temperature change and weather all
year round. Parking lot operators therefore
have an extremely cost-effective technol-
ogy at their disposal.
there is one more decisive advantage.
While more costly high-tech systems are
generally used on top and bottom decks
due to higher stress levels from wind and
weather and on the lower levels due to
more frequent parking, simpler solutions
are usually adequate on intermediate lev-
els. Parking space safety is still ensured
in all cases and comes complete with all
the generous decorative design options
offered by polyurethane.
Primer
leveling layer
Wearing layer, aromatic two-component polyurethane
seal,polyurea
seal, aliphatic two-com-ponent polyurethane
P A R K I N G D E C K S
A STRONG COATING
FOR PARKING SPACES
tecHnoloGies aPPlications
2 4
a house is not complete without a roof. it
provides security and protects against the
cold, rain, wind and weather.
it is therefore all the more important to
protect the roof itself from harmful exter-
nal influences with elastic polyurethane
coating systems using raw materials from
Bayer materialscience. this application
shows polyurethane at its very best – flex-
ible even at high and low temperatures,
crack-bridging and consistently waterproof
despite good water vapor transmission.
With customized formulations to meet
the relevant international, national or
regional legal standards, flame-retardant
polyurethane coatings also improve safety
in buildings. and by using light-resistant,
non-yellowing raw material components,
they also reflect some of the sun’s rays. in
a nutshell, polyurethane flat roof seals play
a major role in lengthening the service life
of real estate and thus boost its usability
and resale value.
Primer
1st lamination layer,aliphatic or aromatic one-component or two-component polyurethane
2nd lamination layer, aliphatic or aromatic one-component or two-component polyurethane
Fabric
seal, aliphatic oraromatic two-component polyurethane
F L A T R O O F S
SLEEP SECURELY WITH POLYURETHANE
OVERHEAD
2 5
like roofs, balconies and patios are exposed
to fl uctuating climatic conditions – not only
between day and night but also between
the seasons.
load-bearing concrete substrates and their
steel reinforcements can be effectively
protected against corrosion from moisture
penetration and at the same time given
decorative properties by applying an all-
over layer of polyurethane membranes. in
addition to exemplary weathering stability,
another particularly appealing feature is
the option of fi ne-tuning the mechanical
strength of the formulation. on the one
hand it has to be such that balcony chairs
and tables do not damage the coating,
on the other the higher slip resistance
required for enhanced safety must not
mean that they stick to the fl oor – this is
absolutely no problem with polyurethane.
and if the building owner opts for a lightfast
aliphatic system, this delivers added pro-
tection against premature aging by the sun.
oldceramic tiles
Bonding agent
self-leveling topcoat, aliphatic one-com-ponent or two-component polyurethane
PVc chips
Primerseal, aliphatic two-com-ponent polyurethane
B A L C O N I E S & P A T I O S
CLIMATE-STABLE FOUNTAIN OF YOUTH
FOR LEISURE AREAS
tecHnoloGies aPPlications
2 6
Polyurethane floor applications are being
used increasingly to protect basements
and garages in private households from
wear and tear and premature aging. the
concrete substrate in garages has to with-
stand heavy loads and aggressive automo-
bile fluids.
it therefore makes perfect sense to use
hydrolysis-resistant and chemical-resistant
floor coatings with a wide range of mecha-
nical, dynamic and thermal properties. car
tires must not be able to leave unsightly
prints on the garage floor even if left stan-
ding for extended periods. this is where
comparatively hard polyurethane systems
of the kind used in automobile showrooms
come into their own.
Polyurethane coatings are also ideal
because they harden and dry quickly after
processing, produce almost no emissions
during application, are available in attrac-
tive colors and are slip-resistant, resilient
and easy to maintain in everyday use.
Primer, aromatic one-component polyurethane or two-component polyurethane, aqueous (‹ 100 µm)
seal, aromatic one-component or aliphatic two-component polyurethane, aqueous, solventborne or polyaspartic 1–2 x 100 µm
G A R A G E S & B A S E M E N T S
ABSOLUTELY INDESTRUCTIBLE –
YEAR AFTER YEAR
2 7
When it comes to protective surface coa-
tings for interior walls and exterior facades,
the track record of high-caliber polyuretha-
ne systems is as impressive as it is for any
other application. Formulations with high
crosslinking densities, optimized chemical
resistance and ease of cleaning are chosen
over competing but less effective technolo-
gies in, for instance, public buildings such
as hospitals, nursing homes, schools and
kindergartens.
local, state and national authorities also
use such easy-to-clean solutions for out-
door areas. the impressive weathering
resistance and sealing properties (even in
driving rain) and good water vapor diffu-
sion properties of polyurethane systems
are all excellent reasons for using high-
quality polyurethane construction mate-
rials based on raw materials from Bayer
materialscience.
What is more, polyurethane products offer
outstanding protection against carbona-
tion, thus improving safety. When used
to coat bridges, train stations, under-
passes or administration buildings, the
steel reinforcements of concrete do not
corrode, meaning that no dangerous frag-
ments come away from the facade. in other
words, polyurethane raw materials from
Bayer are crucial for sustainable construc-
tion materials.
Primer, aliphatic two-component polyu-rethane or two-component poly-urethane, aqueous (‹ 100 µm)
intermediate coating,aliphatic two-component polyu-rethane or two-component poly-urethane, aqueous (‹ 100 µm)
topcoat,aliphatic two-component polyurethane, aqueous orsolventborne 1–2 x 100 µm
W A L L S & F A C A D E S
A CLEAN SOLUTION FOR INDOORS
AND OUTDOORS
tecHnoloGies aPPlications
2 8
PRODUCTS KEY FIGURES (SUPPLY FORM) TECHNOLOGY
Supply form [%]
Viscosity [mPa·s at 23 °C]
Viscosity [mPa·s at 25 °C]
OH-content [%] in relation to supply form
NCO-content [%] in relation to supply form
Eq. weight [g/mol]
1K PUR 1K moisture-curing 2K 3K
Polyols
DesmoPHen® 1380 Bt 100 600 11.70 146
DesmoPHen® 5028 Gt 100 3,600 0.86 1,970
DesmoPHen® 1145 100 2,950 7.10 240
DesmoPHen® 1150 100 3,500 4.70 360
DesmoPHen® 1155 100 425 5.00 340
DesmoPHen® 1100 100 30,500 6.50 260
DesmoPHen® 1200 100 23,500 5.00 340
DesmoPHen® c 1100 100 3,200 3.30 500
DesmoPHen® c 1200 100 16,500 1.70 1,000
DesmoPHen® VP ls 2249/1 100 1,900 15.50 110
DesmoPHen® VP ls 2068 100 950 5.40 315
DesmoPHen® VP ls 2328 100 800 7.95 214
DesmoPHen® 650 mPa 65 20,000 5.30 320
DesmoPHen® 651 mPa/X 67 25,000 5.50 310
DesmoPHen® rD 181 X 75 7,500 3.70 460
amines
DesmoPHen® nH 1220 100 max. 100 234
DesmoPHen® nH 1420 100 1,450 276
DesmoPHen® nH 1520 100 1,400 290
DesmocaP ® eP eq. weight
DesmocaP® 11 100 100,000 2.4 bl. 930
DesmocaP® 1190 90 30,000 2.2 bl. 1,030
DesmocaP® 12 100 40,000 1.6 bl. 1,500
bl. = blocked
DesmolitH ®
DesmolitH® XP 2761 70 200 3.00 565
DesmolitH® XP 2656 70 150 3.00 425
DesmolitH® VP ls 2766 90 1,200 16.00 110
tDi HarDeners
DesmoDUr® e 14 100 6,800 3.30 1,270
DesmoDUr® e 15 100 7,000 4.40 950
DesmoDUr® l 67 mPa/X 67 1,600 11.90 350
otHers
HarDener VP ls 2959 100 3,000 330
HarDener Dt 100 200 90
VP and XP products are test products. all data are approximate values. Please see the technical data sheets for the correct specifications.
2 9
PRODUCTS KEY FIGURES (SUPPLY FORM) TECHNOLOGY
Supply form [%]
Viscosity [mPa·s at 23 °C]
Viscosity [mPa·s at 25 °C]
OH-content [%] in relation to supply form
NCO-content [%] in relation to supply form
Eq. weight [g/mol]
1K PUR 1K moisture-curing 2K 3K
HDis/iPDis
DesmoDUr® nZ 1 * 100 3,000 20.00 210
DesmoDUr® lD 100 75 12.10 347
DesmoDUr® n 3200 100 2,500 23.00 183
DesmoDUr® n 3300 100 3,000 21.80 193
DesmoDUr® n 3400 * 100 150 21.80 193
DesmoDUr® n 3600 100 1,200 23.00 183
DesmoDUr® n 3800 100 6,000 11.00 382
DesmoDUr® n 3900 100 730 23.50 179
DesmoDUr® n 100 100 10,000 22.00 191
DesmoDUr® n 75 mPa 75 250 16.50 255
DesmoDUr® n 75 mPa/X 75 250 16.50 255
DesmoDUr® Z 4470 mPa/X 70 1,500 11.90 360
DesmoDUr® Z 4470 sn 70 2,000 11.90 360
DesmoDUr® VP ls 2371 100 11,000 3.70 1,135
DesmoDUr® XP 2406 80 7,000 2.80 1,500
mDis
DesmoDUr® Vl 100 90 31.50 133
DesmoDUr® Vl r 10 100 120 31.50 133
DesmoDUr® Vl r 20 100 200 31.50 133
DesmoDUr® Vl 50 100 22.5 32.50 129
DesmoDUr® Vl 51 100 21.5 32.50 129
DesmoDUr® VH 20 n 100 280 24.50 173
DesmoDUr® e 20100 100 1,100 15.70 268
DesmoDUr® e 21 100 5,400 16.00 263
DesmoDUr® e 22 100 2,800 8.60 488
DesmoDUr® e 2200/76 100 2,750 9.85 426
DesmoDUr® e 23 100 1,800 15.40 273
DesmoDUr® e 29 100 220 24.00 175
DesmoDUr® XP 2727 100 800 15.25 275
DesmoDUr® XP 2551 100 60 32.00 131
aQUeoUs systems
BayHyDrol® a 2457 41 max. 100 1.10 1,545
BayHyDrol® a 2542 50 2,250 2.70 630
BayHyDrol® a 2546 41 max. 200 1.70 1,000
BayHyDrol® a 2646 50 2,250 2.70 630
BayHyDrol® a 242 42 200 1.70 1,010
BayHyDUr® XP 2547 100 650 22.50 187
BayHyDUr® XP 2451* 100 1,200 18.50 227
BayHyDUr® 3100 100 2,800 17.40 241
* not suitable for spray application
3 0
ABBREVIATIONS IN TABLES
3 1
1K = one-component
2K = two-component
3K = three-component
Ba = Butyl acetate
BG = Butyl glycol
DPGDme = Dipropylene glycol dimethyl ester
ea = ethyl acetate
eDiPa = ethyldiisopropylamine
eP = epoxy resin
HDi = Hexamethylene diisocyanate
mDi = Diphenylmethane diisocyanate (methylene diphenyl diisocyanate)
meK = methylethylketone
mFt = minimum film formation temperature
mPa = 1-methoxypropyl acetate-2
miBK = methyl-isobutyl ketone
nmP = n-methyl pyrrolidone
Pac = Polyacrylate
PnB = Dowanol PnB
PUr = Polyurethane
sn100 = solvent naphtha 100
tDi = toluene diisocyanate
trieta = triethanolamine
tsca = toxic substance control act (U.s. agency for toxic
substances & Disease registry)
Ua = Unsaturated acrylate
UP = Unsaturated polyester
Voc = Volatile organic compounds
X = Xylene
Bayer materialscience aG51368 leverkusen Germany
This information and our technical advice – whether verbal, in writing or by way of trials – is given in good
faith but without a warranty, and this also applies where proprietary rights of third parties are involved. It
does not release you from the obligation to test the products supplied by us as to their suitability for the
intended processes and uses. The application, use and processing of the products are beyond our control
and, therefore, entirely your own responsibility. We will only sell our products on the basis of our General
Conditions of Sale and Delivery. Edition: 2011-01 · Order-No.: MS00051640 · Printed in Germany · E