Product overview - High TAC · Product overview paints & coatings: 1.Organic corrosions inhibitors...

2 Straetmans High TAC GmbH

1971 Foundation: Dr. Straetmans Today Chemische Produkte GmbH raw materials: COSMETICS 2003 Spin off: Straetmans High TAC GmbH Technichal Additives & Chemicals Customers: metal working fluid producers

paint and coating industry

special applications

mother company

Introduction of Straetmans High TAC GmbH:


Product overview paints & coatings:

1.Organic corrosions inhibitors for iron & steel:

2.Flash rust / temporary corrosion inhibitors for iron & steel:

3.Combined corrosion inhibitors:

4.Highlight Additive G50:

5.New R&D product Additive RM:

6.Specialties:


1. Organic corrosions inhibitors for iron & steel:

Synergistic effects in combination with pigments, like zinc phosphate Favourable tox profiles

Excellent cost performance ratio

>> Additive G50 / G50 wb / G50 T / G50 S - Real multi metal protection based on polymeric compounds. - Applicable for water based (Additive G50 wb) and solvent based coatings

(Additive G50). - For high temperature applications like coil coatings we advise also

Additive G50 T. - For solvent borne systems with low polarity we advise to use

Additive G50 S.

>> Additive RM - Novel R & D product, based mostly on renewable raw materials! - Organic, polymeric corrosion inhibitor for iron & steel. - Applicable for water based coatings. - Additional it offers a decent hydrophobic effect.


1. Organic corrosions inhibitors for iron & steel:

Overview of the general compatibility of our additives with different formulations / coating systems and solvent. The actual results may vary in individual systems.

Solvent borne Applicable for alkydes / epoxy / PU´s

Water borne

High TAC Additive Alkanes Aromates Acetates Glycoles Alcoholes Acrylates/Alkydes Epoxy/PUD´s

Additive G50 * + ++ +++ +++ * *

Additive G50 wb * * * * * ++ +++

Additive G50 T * + ++ +++ +++ * *

Additive G50 S +++ +++ ++ + + * *

Additive RM

In recent develpment with

+++ = very good ++ = good + = possible, subject to individual system * = pay attention to proper blending


no nitrites, no nitrosable amines, favourable tox profile!

2. Flash rust / temporary corrosion inhibitors:

>> Additive F2M - Very effective flash rust inhibitor for iron / steel surfaces. - Unlike many other FRIs Additive F2M has no negative effects on long term

corrosion protection, thus may be used at higher dosages! - Also effective as in-can corrosion protection.

>> Additive G50 F / N / E - Very effective flash rust inhibitor for iron / steel surfaces. - Also effective as temporary corrosion protection, like transport or storage.

Depending on the coating a varnishing is possible without prior cleaning / removal of Additive G50 F / N / E!

- Additional synergistic long term corrosion inhibition!

>> Additive TA-40 / TA-41, EDA and CF - Very effective flash rust inhibitors for iron / steel surfaces, partially in

accordance to GADSL.


3. Combined Corrosion Inhibitors:

The following Additive G50 types are combined corrosion inhibitors, offering flash rust inhibition and organic long term corrosion protection in one product!

>> Additive G50 F - From approx. 1.0 % on sufficient flash rust protection is provided.

>> Additive G50 N - From approx. 1.25 % on sufficient flash rust protection is provided.

>> Additive G50 E - Due to it´s high water content use is limited! From approx. 2.5 % on

sufficient flash rust protection is provided.

Further improvements are possible through combinations of Additive G50 F / N / E.

Complete long term corrosion protection is possible through additional Additive G50 / G50wb.


2. Flash rust inhibitor for water borne paints & coatings:

Additive G50 F, Additive G50 N and maybe Additive G50 E

4. Highlight Additive G50 :

1. Corrosion inhibitor for paints & coatings:

a. For aluminium and aluminium alloys

b. For iron & steel

c. For non-ferrous metals (like copper), zinc, tin, lead and others

d. For bronze, brass and others

Additive G50/G50 wb/G50 T/G50 S and Additive G50 F/G50 N/G50 E



3. Inhibitor for aluminium & zinc pigments, flakes, pastes and bronzes:

Additive G50/G50 wb/G50 S

4. Temporary corrosion protection (like transport or storage):

a. For aluminium and aluminium alloys

b. For iron & steel

c. For non-ferrous metals (like copper), zinc, tin, lead and others

d. For bronze, brass and others

Additive G50/G50 wb/G50 S and Additive G50 F/G50 N/G50 E



„Effect“ FRI (flash rust inhibitor) Additive G50 AC-pigment

speed of action +++ ++ +

on the coating - / + + / ++ ++

on long term - +++ +++

application wb / sb wb wb + sb wb + sb

clearcoat wb yes yes ( - )

clearcoat sb - yes ( - )

Additive G50 in comparison to common inhibitors for paints & coatings:

Additive G50 is a totally new inhibitor type / inhibitor concept, offering a broader and much more flexible application and use compared to common inhibitors!

Another advantage of Additive G50 is it´s flexibility, meaning it can be combined with other G50 types and inhibitors, offering synergistic effects!



Corrosion inhibition for iron and steel:

Additive G50 is a corrosion inhibitor suitable for many coating systems, in synergism with anti-corrosion pigments or as sole corrosion inhibitor e.g. transparent coatings.

Reference: 1K wb Acrylic with 10.1 % ZnPO 250 h Salt spray, 60 µm

1K wb Acrylic with 5.0 % ZnPO + 2 % Additive G50 wb 250 h Salt spray, 60 µm

Reference: 2K PU sb, with 10.1 % ZnPO 504 h Salt spray, 60 µm

2K PU sb, without ZnPO, but with 2 % Additive G50 504 h Salt spray, 60 µm


Additive G50 can also act as a treatment for aluminium flakes/pigments in water based coatings, preventing the oxidation and the creation of hydrogen. Typical treatments of aluminium flakes/pigments are by chromates orSiO2 / Silanes Other treatments, like resins or phosphoric compounds, provide worse results, even under less aggressive / mild conditions.

Measurement of evolved hydrogen substrate (aluminium 74014) hydrogen untreated aluminium right away Silane-treated standard aluminium factor 1 Additive G50-treated* aluminium factor 3.2 Silane-treated standard aluminium + G50* factor 4

*0.4 % emulsions of Additive G50

3) A. Brinkmann, A. Zockoll; Stabilisierung von Korrosionsschutzpigmenten, Farbe und Lack, 2 (2010) 28-32.


Inhibitor for aluminium flakes / pigments:


100 h salt water 1000 h salt water 24 h salt spray 250 h salt spray

untreated 0.5 % G50 treated untreated 0.5 % G50 treated


Temporary corrosion protection for aluminium alloys:

2024 aluminium panels, untreated and treated with Additive G50 wb :


B C M N W

24 h 48 h 24 h 24 h 48 h 48 h

Additive G50 S on ST14 steel, applied through a paraffinic base oil. The dosage of Additive G50 S is 1.0% in the oil. All competitors (coded B, C, M, N and W) are commercially available products for temporary metal protection, rust removal, lubricating, penetration of rust and moisture displacement.

Compared to the competitors the simple formulation with Additive G50 S shows good results.


Temporary corrosion protection for iron & steel:


5. New R & D product Additive RM :

The properties mentioned above are the core targets and further will be added!

-Polymeric corrosion inhibitor for long term protection and decent flash rust. -Based on renewable raw materials. -Useable in water borne coatings for iron & steel surfaces. -Hydrophobic properties. -Polymers make easy customisation possible!

Additive RM is the current R&D project that High TAC is developing in cooperation with the Fraunhofer-IFAM institute Bremen.

The proposed properties are:


6. Specialties:

>> Additive CT (currently in R&D) - Corrosion inhibitor for water borne acrylics - Suitable for lower / acidic pH values - Suitable for cationic systems

>> Additive KT

- Flash rust / Corrosion inhibitor for iron and steel - Suitable for lower pH values

>> Additive 78/2

- Corrosion inhibitor for non-ferrous-metals - Suitable for solvent-based systems

>> Additive 84/2

- Corrosion inhibitor for non-ferrous-metals - Suitable for water-based systems


谢谢 спаси́бо

Product overview - High TAC · Product overview paints & coatings: 1.Organic corrosions inhibitors...

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