THIXATROL PRO. New organic thixotrope for ultra thick protective coatings. Innovation Compliance High Performance. Application Leaflet.

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1 Application Leaflet March 2013 Rheology leadership plus so much more... THIXATROL PRO Key Benefits Superior sag resistance Excellent overcoatability Excellent humidity and salt-spray resistance New organic thixotrope for ultra thick protective coatings Innovation Compliance High Performance

2 Introduction is a 100% active, seeding resistant organic thixotrope based on proprietary diamide chemistry. It provides viscosity, thixotropy and sag control in non-aqueous protective coating systems. Specifically developed to provide sag resistance for thick, highly protective coatings, it also shows the following benefits: Key Benefits Provides excellent sag resistance Provides stable viscosity control Imparts thixotropic flow behaviour Excellent storage stability Provides superior anti-settling behaviour Offers excellent re-coatability No negative influence on corrosion and humidity resistance Highly resistant to seeding Minimized false body effects (may be packed hot) Amide - Product positioning Polyurethane Top-Coat THIXATROL PRO Industrial Alkyds K-Epoxy High build THIXATROL MAX Epoxy Primer (The higher the value, the better the performance) Chemical and Physical Data Composition Colour / Form Proprietary diamide chemistry Off white finely divided powder Melting Point ( C) Levels of Use Typical levels of use for effective flow and antisettling control range from 0.5% to 2.0% of the total system weight. The optimum level of THIXATROL PRO will vary depending on the type of system. When formulating a new system, a loading ladder study is recommended to determine the precise level of additive needed. As with all new additives it is recommended to evaluate the full paint performance carefully. Incorporation requires a specific processing temperature and dwell time in order to develop its optimum rheological efficiency. For complete activation, it is advised to introduce at the beginning of the manufacturing process in order to obtain sufficient wetting and dwell time. THIXATROL PRO will benefit from the temperature developed during the pigment dispersion phase to ensure maximum performance. The excellent seed-resistance of THIXATROL PRO rheological additive allows for flexible paint manufacturing. 2

3 Application test results The was evaluated in a high build 2K-Epoxy paint formulation and in a 2K-Epoxy primer. High rheological performance High build 2K-Epoxy - Formulation Component A Position Raw material Function Weight in % 1 Epikote 1001x75 Resin (Momentive) Methylisobutylketone Solvent Xylene Solvent n-butanol Solvent Rheological additive Additive 1.00 Disperse for 5 minutes at 18 m/s 6 Antiterra U Wetting agent (Byk Chemie) Kronos 2310 Titanium dioxide (Kronos) Blancfixe micro Filler (Sachtleben Chemie) Talkum IT extra Filler (Mondo Minerals) 8.90 Disperse for 30 minutes at 21 m/s and 50 C 10 Epikote 1001x75 Resin (Momentive) Methylisobutylketone Solvent Xylene Solvent n-butanol Solvent 1.56 Total Component B (standard hardener) 14 Versamid 115 x 70 Hardener (BASF) Component B (alternative hardener) 14 Epicure 3115 x 70 Hardener (Momentive) Slow stirring for 5 minutes Flow behaviour: cross-linked This graph shows clearly that outperforms the and our existing THIXATROL MAX in the high build 2K-Epoxy paint. 1,000 Pa s /s 10 3 Shear Rate. THIXATROL MAX 3

4 Superior sag resistance The following shows the sagging results both by blade and spray application in the high build 2K-Epoxy. Sagging, after spray application 650 µm 500 µm The spray application sagging results were obtained with 3 bar air-pressure and only one spray pass, using a spray gun Sata jet 100 B with a 2.5 mm spray nozzle. 750 µm THIXATROL MAX Sagging, blade µm The shows the fastest viscosity recovery immediately after spray application which results in superior sag resistance compared to either THIXATROL MAX or the. 600 µm 700 µm 800 µm THIXATROL MAX The comparison between the blade and spray application tests clearly shows a significant impact on the sag results. However, the trend in performance from the evaluated samples remains the same. Blade versus spray application, sag results ( µm ) Blade µm Spray application THIXATROL PRO THIXATROL MAX

5 Excellent overcoatability 2K-Epoxy primer - Formulation Component A Position Raw material Function Weight in % 1 Epikote 1001x75 Resin (Momentive) Antiterra U Wetting agent (Byk Chemie) Rheological additive Additive 1.00 Disperse for 5 minutes at 16 m/s 4 Methylisobutylketone Solvent Xylene Solvent n-butanol Solvent Kronos 2059 Titanium dioxide (Kronos) Blancfixe micro Filler (Sachtleben Chemie) Talkum IT extra Filler (Mondo Minerals) Disperse for 30 minutes at 18 m/s and 50 C Component B Total Versamid 115 x 70 Hardener (BASF) Slow stirring for 5 minutes Adjust spray viscosity in a DIN 4mm Cup to sec. 11 Xylene Solvent X Intercoat adhesion The below cross hatch / tape test shown below was made with a µm coatings of the 2K-Epoxy primer on primer. It was stored at 40 C under high air humidity conditions. shows excellent intercoat adhesion performance. There is no evidence of failure. 5

6 Excellent humidity and salt-spray resistance Humidity resistance after 500 hours exposure Humidity and salt-spray resistance were tested for the high build 2K-Epoxy formulation. had no negative influence on the coating properties when panels were exposed to 500 hours with 100% humidity (see left) or 500 hours salt-spray (see below). Gloss did not change and there was no loss of adhesion. Blister formation was negligable. Salt-spray resistance after 500 hours exposure Phosphated cataphoretic painted bonder * Phosphated steel bonder Phosphated cataphoretic painted bonder Phosphated steel bonder * Phosphate treated steel panel additionally protected by a cathodic dip-paint coat (primer) Summary The use of rheological additive provides excellent paint application properties: High rheological efficiency with thixotropic flow Superior sag resistance, especially in ultra thick epoxy protective coatings No negative influence on humidity and salt-spray resistance No influence on intercoat adhesion Learn more about our products and visit our website! or us at: waterinfo@elementis.com Elementis UK Ltd c/o Elementis GmbH Stolberger Strasse Cologne, Germany Tel: Fax: Elementis Specialties, Inc. 469 Old Trenton Road East Windsor, NJ USA Tel: Fax: Elementis Specialties Asia No. 99 Lian Yang Road Songjiang Industrial Zone Shanghai P.R. China Tel: