PARALOID AU-608 TBZ Acrylic Polyol For Auto Refinishing, GIF and Conventional Spray Applications, and Airless Spray Maintenance

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1 Technical Data Sheet Acrylic Polyol For Auto Refinishing, GIF and Conventional Spray Applications, and Airless Spray Maintenance Introduction Acrylic Polyol is supplied at 60% nonvolatiles in t-butyl acetate. We anticipate that t-butyl acetate will be de-listed as a VOC. At that time, this product will have VOC <0.4 pounds/gallon. Acrylic Polyol has been designed to give the same performance expected from one of the coating standards, PARALOID AU-608 Acrylic Polyol. When properly crosslinked with a recommended aliphatic polyisocyanate, the resultant urethane coating will exhibit the high gloss, durability, excellent hardness/flexibility balance, and chemical resistance expected from a high-performance coating. You may use Acrylic Polyol wherever you have used the original product PARALOID AU-608 Acrylic Polyol. As the de-listing of t-butyl Acetate occurs, further opportunities for use may increase into those applications with severe VOC restrictions. By supplying Acrylic Polyol at potentially low VOC, the formulator has maximum latitude to prepare the best performing coating at the lowest possible VOC. Typical Physical Properties 1 Property Typical Values Nonvolatiles Content, % Solvent t-butyl Acetate Viscosity, Brookfield, cps (25 C) Density, lbs/gal 8.46 Hydroxyl Equivalent Weight 650 Molecular Weight (Avg.) 20,000 Tg, C These properties are typical but do not constitute specifications. Formulating Guidelines The evaporation rate for t-butyl Acetate is 2.8 (n-butyl Acetate = 1.0). As such, it evaporates faster than toluene, but slower than MEK. Further, its solvent power is slightly less than both. Thus, when formulating, there is a need for better polymer solvency for spraying at higher solids, and a need for a "tail" solvent/diluent that will promote subsequent film formation. To minimize VOC, some acetone and PCBTF (Parachlorobenzotrifluoride) may be used as the better polymer solvent, tail diluent, respectively. Page 1 of 8 Acrylic Polyol Form No NAR-EN-CDP

2 Our preliminary starting-point formulations for "clear" film GIF applications vary from lbs./gal. VOC. They employ a mixture of acetone/pcbtf at the lowest VOCs and they utilize PM Acetate or Xylene as the VOC rises. The fourth formulation listed is a 2.0 VOC blue tint. Part "A" of this formulation is stable for typical storage conditions prior to mixing in the isocyanate and dilution solvents, which should be done shortly before use. The formula uses Eastman EEP as the "tail" solvent to effect proper spraying and drying characteristics. The listed GIF formulations were sprayed conventionally (35-40 psi) at approximately 25-30% solids, with viscosity of ca seconds on a #2 Zahn cup. Glossy, even, continuous films were obtained. The balance of properties (pot life/dry time, hardness/flexibility, chemical resistance) were similar to our control system, PARALOID AU-608 TBZ Acrylic Polyol, a well-known industry standard. The last formulation is a maintenance gloss topcoat for airless spray application. Formulations included: Acrylic Polyol clear topcoat, VOC = 0.4 lbs./gal. Acrylic Polyol clear topcoat, VOC = 2.0 lbs./gal. Acrylic Polyol clear topcoat, VOC = 5.0 lbs./gal. Acrylic Polyol pigmented blue tint topcoat, VOC = 2.0 lbs./gal. Acrylic Polyol maintenance gloss topcoat for airless spray application Table 1: Typical Film Properties, 14 PVC Blue Tint Formulation (2 Mils Dry on Treated Aluminum) PARALOID AU-608X Hydroxyl Functional Isocyanate-Reactive Acrylic Resin / NCO VOC = 5.4 lbs/gal Gloss Pencil Hardness H H Flexibility, Mandrel Bend, 1/8" Pass Pass Impact Resistance Direct Reverse Chemical Resistance, 30 min. spots: 10% HCl, 10% NaOH Gasoline, Motor Oil Isopropanol PARALOID AU-608X Hydroxyl Functional Isocyanate-Reactive Acrylic Resin / NCO VOC = 2.0 lbs/gal Page 2 of 8 Acrylic Polyol Form No NAR-EN-CDP

3 Unpigmented Clear Topcoat Based on Acrylic Polyol VOC 0.4 Lbs/Gal Acrylic/Isocyanate: 75/ Acetone PCBTF Catalyst T-12 (10% in t-butyl Acetate) Byk-300 silicone surface additive Tinuvin 292 liquid light stabilizer Raybo 3 anti-silk Desmodur N 3300 hardener Dilute to Spray Viscosity Acetone PCBTF Totals Weight, Solids, % 30.0 Volume, Solids, % 26.3 Percent Solvent Weight Volume Acetone PCBTF t-butyl Acetate Unpigmented Clear Topcoat Based on Acrylic Polyol VOC 2.0 Lbs/Gal Acrylic/Isocyanate: 75/ Eastman EEP PCBTF t-butyl Acetate Catalyst T-12 (10% in t-butyl Acetate) Byk-300 silicone surface additive Raybo 3 anti-silk Tinuvin 292 liquid light stabilizer Tinuvin 328 liquid light stabilizer Desmodur N 3300 hardener Dilute to Spray Viscosity t-butyl Acetate Acetone Totals Weight, Solids, %, at Spray 25.7 Viscosity Volume, Solids, %, at Spray 20.7 Viscosity NCO/OH Ratio 1.1/1.0 Page 3 of 8 Acrylic Polyol Form No NAR-EN-CDP

4 Unpigmented Clear Topcoat Based on Acrylic Polyol VOC 5.0 Lbs/Gal/Acrylic/Isocyanate: 75/ Xylene PM Acetate Catalyst T-12 (10% in t-butyl Acetate) Byk-300 silicone surface additive Tinuvin 292 liquid light stabilizer Raybo 3 anti-silk Desmodur N 3300 hardener Dilute to Spray Viscosity Xylene PM Acetate Totals Weight, Solids, % 32.0 Volume, Solids, % 26.3 Percent Solvent Weight Volume Xylene PM Acetate t-butyl Acetate Page 4 of 8 Acrylic Polyol Form No NAR-EN-CDP

5 2.0 VOC Urethane Topcoat, Blue Tint, Based on PARALOID 608 TBZ Acrylic Polyol Sand or Media Mill: Eastman EEP Ti-Pure R-960 titanium dioxide Phthalo Blue Sub Total Letdown: t-butyl Acetate, P.U. Grade PCBTF Metacure T-12 dibutylin dilaurate (10% in t-butyl Acetate) Byk-300 silicone surface additive Tinuvin 292 liquid light stabilizer Raybo 3 anti-silk Above Mill Base Sub Total At point of use, add isocyanate below, then add in Dilution Solvent mix to attain conventional spray viscosity. Polyisocyanate, aliphatic HDI, 100%, HEW= Sub Total Dilution Solvent Mix: t-butyl Acetate Acetone Totals Weight, Solids, %, 43.0 Volume, Solids, 30.4 Pigment Volume Concentration, % 14.2 NCO/OH, Eq. 1.10/1.0 Volatile Organic Compound, 2.0 (240) lbs/gals (gm/l) at Application Viscosity, sec., #2 Zahn Cup Page 5 of 8 Acrylic Polyol Form No NAR-EN-CDP

6 Starting-Point Maintenance Gloss Topcoat Based on Airless Spray Application Sand or Media Mill: n-butyl Acetate, P.U. Grade Acrylic Polyol (60%) Ti-Pure R-960 titanium dioxide Letdown: Eastman EEP Acrylic Polyol (60%) Above Mill Base Metacure T-12 dibutyltin dilaurate (10% in t-butyl Acetate) Tinuvin 1130 liquid light stabilizer Tinuvin 292 liquid light stabilizer Raybo 3 anti-silk Byk-300 silicone surface additive Sub Total At point of use, mix solvent and isocyanate below, then mix in with. n-butyl Acetate, P.U. Grade 8 Polyisocyanate, aliphatic HDI, %, HEW=195 Sub Total 88 Totals 1020 Weight, Solids, %, 61 Volume, Solids, 46 Pigment Volume Concentration, % 17 NCO/OH, Eq. 1/1 Volatile Organic Compound, 2.8 lbs/gal (if t-butyl Acetate is delisted as Volatile Organic Compound) Page 6 of 8 Acrylic Polyol Form No NAR-EN-CDP

7 Safe Handling Information The Dow Chemical Company Material Safety Data Sheets (MSDS) contain pertinent information that you may need to protect your employees and customers against any known health or safety hazards associated with our products. Under the OSHA Hazard Communication Standard, workers must have access to and understand MSDS on all hazardous substances to which they are exposed. Thus, it is important that you provide appropriate training and information to your employees and make sure they have available to them MSDS on any hazardous products in their workplace. The Dow Chemical Company sends MSDS for all of its products, whether or not they are considered OSHA-hazardous, to both the bill to and/or ship to locations of all its customers upon initial shipment, including samples. If you do not have access to one of these MSDS, please contact your local Dow representative for an additional copy. Updated MSDS are sent upon revision to all customers of record. In addition, MSDS are sent annually to all customers receiving products deemed hazardous under the Superfund Amendments and Reauthorization Act. MSDS should be obtained from your suppliers of other materials recommended in this bulletin. Additional safe handling information is available from your Dow representatives. The Dow Chemical Company is a member of the American Chemistry Council and is committed to ACC s Responsible Care Program. Responsible Care is a registered service mark of the American Chemistry Council in the United States. Page 7 of 8 Acrylic Polyol Form No NAR-EN-CDP

8 Handling Precautions Before using this product, consult the Material Safety Data Sheet (MSDS)/Safety Data Sheet (SDS) for details on product hazards, recommended handling precautions and product storage. CAUTION! Keep combustible and/or flammable products and their vapors away from heat, sparks, flames and other sources of ignition including static discharge. Processing or operating at temperatures near or above product flashpoint may pose a fire hazard. Use appropriate grounding and bonding techniques to manage static discharge hazards. CAUTION! Failure to maintain proper volume level when using immersion heaters can expose tank and solution to excessive heat resulting in a possible combustion hazard, particularly when plastic tanks are used. Storage Disposal Considerations Store products in tightly closed original containers at temperatures recommended on the product label. Dispose in accordance with all local, state (provincial) and federal regulations. Empty containers may contain hazardous residues. This material and its container must be disposed in a safe and legal manner. It is the user's responsibility to verify that treatment and disposal procedures comply with local, state (provincial) and federal regulations. Contact your Dow Technical Representative for more information. Product Stewardship Customer Notice Dow has a fundamental concern for all who make, distribute, and use its products, and for the environment in which we live. This concern is the basis for our product stewardship philosophy by which we assess the safety, health, and environmental information on our products and then take appropriate steps to protect employee and public health and our environment. The success of our product stewardship program rests with each and every individual involved with Dow products from the initial concept and research, to manufacture, use, sale, disposal, and recycle of each product. Dow strongly encourages its customers to review both their manufacturing processes and their applications of Dow products from the standpoint of human health and environmental quality to ensure that Dow products are not used in ways for which they are not intended or tested. Dow personnel are available to answer your questions and to provide reasonable technical support. Dow product literature, including safety data sheets, should be consulted prior to use of Dow products. Current safety data sheets are available from Dow. Contact: North America: Latin America: (+55) Europe: (+800) Asia-Pacific: (+800) Notice: No freedom from infringement of any patent owned by Dow or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for determining whether products and the information in this document are appropriate for Customer's use and for ensuring that Customer's workplace and disposal practices are in compliance with applicable laws and other government enactments. The product shown in this literature may not be available for sale and/or available in all geographies where Dow is represented. The claims made may not have been approved for use in all countries. Dow assumes no obligation or liability for the information in this document. References to Dow or the Company mean the Dow legal entity selling the products to Customer unless otherwise expressly noted. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED. Page 8 of 8 Trademark of The Dow Chemical Company Form No NAR-EN-CDP