150 years Discover more performance with new crosslinker chemistryLarotact® 150 for high-class coatings

150 years

Daniel FlojharEuropean Coatings Show 2015

150 years

Table of contents

Larotact® 150 at a glance

Use in 1K stoving enamels

Usage and performance highlights

Conclusion

® = Registered trademark of the BASF Group 2

150 years

Larotact 150 at a glance

(TACT = Trisalkoxycarbamatotriazin)

Is a low molecular mass crosslinker for baking finishes that combines melamine and urethane chemistry.

Due to the new REACH classification of formaldehyde, Larotact could compensate performance losses of reducing the amino resin component to match the formaldehyde limit of the formulation.

As a result, it supports coatings formulators to produce label-free coatings.

N N N

O

R1

R1

R1

O

HO

O N

O O

NH

N

H

R1=Methyl, Butyl

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Larotact 150 at a glance

Appearance No color to slightly yellow Clear to slightly turbid

Supply specification

Non volatile matter, DIN EN ISO 3251, 2 h, 105 °C 48-52 % in n-Butanol

Viscosity at 23 °C, DIN EN ISO 3219, annex A, shear rate D 25 s-1

10-50 mPa*s

pH value 3-6

Platin-cobald (Hazen) color number < 50Compatibility Soluble in alcohols, esters, aromatic hydrocarbons and glycol ethers,

it is not miscible with water

Compatible with a wide variety of alkyd resins, polyesters, acrylic resins and epoxy resins

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Larotact 150 in 1K stoving enamels

Increases surface hardness Excellent elasticity behavior Increases network density

for improved chemical resistances High weather resistance High gloss and good leveling

of coating surface appearance No discoloring at all Non reactive at storage conditions

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Usage and specific performance highlights

1K Amino resin Combined with melamine resins Typical ratio: 1-15 % Larotact on total

formulation

Improved performances Higher hardness Higher reactivity Better chemical resistances Easy mixable

Use only in temperature cured application systems to activate Larotact as crosslinker

Best use in OH-functional binder systems

Best use in solvent-based coatings

!

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Usage and specific performance highlights

Use only in temperature cured application systems to activate Larotact as crosslinker

Best use in OH-functional binder systems

Best use in solvent-based coatings

!1K stand-alone Stoichiometric use of Larotact to OH-Polyol NCO equivalents:

16 % (32 % of TACT pure)Well-defined crosslinking mechanism Tailor made polyols needed

High hardness High reactivity No formaldehyde content

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Usage and specific performance highlights

Use only in temperature cured application systems to activate Larotact as crosslinker

Best use in OH-functional binder systems

Best use in solvent-based coatings

!2K Polyurethane 5-10 % in Component A BuOH could partly react with NCO

hardener

Increased hardness with no loss on viscosity

Improved appearance, due to highreflective index

Better weather resistance

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Improved hardness and resistance of clear coat formulated with TACT

Clear coat based on Joncryl® 902 7:3 Luwipal® 018 and 10 % Larotact 150 on binder total (solids/solids)

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AmtecKistler

Sulfuric acidresistance

Pankreatinresistance

Surface hardness

Tree resin resistance

NaOHresistance

Scratch resistance

Inside1 Very good – 2 Good – 3 OK – 4 Limit – 5 Not OK – 6 BadOutside

ReferenceReference + TACT

® = Registered trademark of the BASF Group 9

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Please get in touchYou are highly welcome at our booth No. 523, hall 7a

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Daniel FlojharTechnical Marketingdaniel.flojhar@basf.com

150 years