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SILICAS FOR COATINGS

PERFORMANCE ENGINEERED SILICAS

Quality. Consistency. Innovation.

For more than five decades, coatings manufacturers have relied on quality precipitated silicas from PPG to advance product performance or improve manufacturing operations. From enhancing the efficiency of flatting agents and the sag control of thickening silicas to developing environmentally friendly, non-toxic, anti-corrosion pigments, PPG has consistently delivered the innovation and technical expertise needed to meet the ever-evolving demands of its customers. That legacy of quality, reliability and technical prowess continues today. As one of the world's leading manufacturers of precipitated silicas, PPG supplies products that are specifically engineered for coatings that serve the industrial, architectural, automotive and other specialty segments. PPG silicas also are used in adhesives, caulks and sealants.

PPG chemists and researchers use optical interferometric profiling to measure the surface roughness and surface topography of coatings films.

Translating Performance into Benefits

In the 1930s, PPG became one of the first manufacturers in the world to create synthetic precipitated silicas and bring them to market. Because of its long history with these products, PPG has in-depth knowledge of their functional properties and how they translate into products that meet customer challenges. In the coatings market, this experience has made PPG a leader in the development of high-quality flatting agents, thickening agents and anti-corrosion pigments. PPG is dedicated to engineering new products that anticipate the increasingly sophisticated demands of the coatings industry.

Excellence in Problem-Solving

When you work with PPG, you get more than high-quality silica products engineered for your application. You also gain access to a broad array of product development and problem-solving capabilities. PPG chemists and researchers, based in several technical and development centers throughout the Pittsburgh, Pa. region, use advanced techniques such as microscopy, spectroscopy and surface analysis to evaluate the chemical, optical and mechanical properties of coatings. These methods, together with an experienced, knowledgeable technical staff, enable PPG to develop new silica products that serve the needs of coatings manufacturers. These resources also combine to help diagnose and troubleshoot a broad range of coatings-related problems for customers. To supplement these analytical, diagnostic and product development capabilities, PPG operates a pilot plant to test prototype products in a real-world production environment or to collaborate with customers to resolve manufacturing issues. Because coatings-related production testing and laboratory work often take place at the same facility, PPG can help accelerate new product development or diagnose customer problems to maximize production efficiencies.

Global Service on a Personal Scale

PPG views each customer as a valued business partner. We are dedicated to providing coatings manufacturers with highly responsive, personalized customer service through trained and knowledgeable representatives and a global network of select distributors. No matter the size or scope of a coatings manufacturing operation, PPG delivers the products and technologies needed to improve quality and efficiency.

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Lo-VelTM Flatting Agents

Lo-VelTM flatting agents are designed to reduce gloss in paints while providing lower viscosity and better stir-in capability. Since debuting in the 1960s, the Lo-Vel product portfolio has expanded to encompass a broad range of highly efficient products that lower manufacturing costs by making coatings easier to apply. To meet formulator requirements, PPG offers Lo-Vel flatting agents with varying degrees of porosity and functional properties. For low-VOC coatings, for example, PPG manufactures extremely high-porous silicas that feature improved rigidity to withstand the high shear forces generated during paint manufacturing. Lo-Vel flatting agents are available as wax-treated and non-treated products. Wax-treated silicas improve dispersion stability and anti-settling behavior in mostly polar solvent and waterborne coatings systems. Non-treated Lo-Vel flatting agents are recommended for mostly non-polar solvent coatings systems, such as lacquers, and when the transparency of a coating is critical.

Lo-Vel flatting agent is stirred into a coatings formulation prior to testing. A coated panel is prepared for laboratory testing with a wire-wound drawdown bar.

Flatting Agents ­ Wax-Treated

Particle Size* Lo-Vel 8100 Lo-Vel 66 Lo-Vel 2023 Lo-Vel 2033 Lo-Vel 2010 Lo-Vel 2018 Particle size distributions for Lo-Vel flatting silicas are charted by laser light diffractometry. An image from a scanning electron microscope shows the micro-surface roughness of a coatings film. 8 6 8 8 11 12 Grind Value N2 BET Hegman Fineness Surface Area (m2/g) (µm) 6.5 6 6 6 5.5 5.5 19 25 25 25 32 32 240 170 250 250 250 250 Benefits High flatting efficiency, excellent settling resistance, heat-age stability and performance consistency. Smooth finishes, excellent coating package stability. High flatting efficiency, good resistance to overgrind, low tendency to hard settle. Best transparency in clear coats, high flatting efficiency, good resistance to overgrind, package stability. High flatting efficiency, good resistance to overgrind, low tendency to hard settle. Gives films a gloss:sheen ratio of close to 1:1, resistance to overgrind.

* Median particle size by laser diffraction

Flatting Agents ­ Non-Treated

Particle Size* Lo-Vel 6200 Lo-Vel 27 Lo-Vel 275 Lo-Vel 2003 Lo-Vel 6000 Lo-Vel 2000 Lo-Vel 29 Topographic surface data of a coatings film is displayed in two dimensions by an optical interferometric profiler. Topographic surface data of a coatings film is displayed interactively in three dimensions by an optical interferometric profiler. Lo-Vel 39A Lo-Vel HSF 8 6 8 9 10 10 10 11 13 Grind Value N2 BET Hegman Fineness Surface Area (µm) (m2/g) 6.5 6 6 6 5.5 5.5 5 3.5 5 19 25 25 25 32 32 38 57 38 715 170 175 240 750 240 170 170 170 Benefits Highest flatting efficiency, high porosity, resistance to overgrind, smooth finishes, stir-in grade. Smooth finishes, low oil absorption, easy stir-in (including post-addition). Low oil absorption, easy stir-in (including post-addition). High flatting efficiency, resistance to overgrind, stir-in grade. Highest flatting efficiency, high porosity, resistance to overgrind, stir-in grade. High flatting efficiency, resistance to overgrind, stir-in grade. Gives films a gloss:sheen ratio close to 1:1, stir-in grade. Gives films a gloss:sheen ratio close to 1:1, surface texture, stir-in grade. High flatting efficiency, gives films a gloss:sheen ratio close to 1:1, surface texture, stir-in grade.

* Median particle size by laser diffraction

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Hi-SilTM Thickening Agents

PPG's technical and product engineering expertise is equally evident with Hi-SilTM thickening agents. In recent years, PPG has developed Hi-Sil products to dramatically improve sag control and accelerate structure recovery. Thanks to these proprietary advances, manufacturers of coatings, adhesives and sealants can achieve required performance, application and rheology properties quickly and cost effectively.

PPG Silica Products by Coatings Application

Coil coatings

Hi-Sil T-800 2 mm Fumed Silica A 10 mm Hi-Sil T-800 3 mm Fumed Silica A 8 mm

Vertical and horizontal sag tests show how Hi-Sil T-800 thickening agent provides sag control that is superior to fumed silica A in the demonstrated application.

Industrial coatings Decorative paints Wood coatings

Thickeners/Thixotropes

DBP Oil Particle Absorption Size* (mL/100g) Hi-Sil T-152 Hi-Sil T- 600 Hi-Sil T-700 Hi-Sil T- 800 4 5.5 4 2.5 205 195 215 220 pH 6.9 6.9 6.9 6.9 N2 BET Surface Area (m2/g) 130 150 190 190 Benefits Highly efficient, low-cost, viscosity increase of industrial solvent-borne compositions. Highly efficient, low-cost, thixtotropic action for a wide variety of solvent-borne compositions. Highly efficient, low-cost, improved sag control for a wide variety of solvent-borne compositions. Superior efficiency in sag control of plastisol-based systems, fast recovery at low shear, cost-effective.

Wood flooring lacquers Wall paper coatings Leather refinishing Leather vinyl refinishing Gel coats Overprint varnishes Printing inks Powder coatings Adhesives (plastisol-based) Sealants Caulks Putties Polyester melamine primer (solvent-borne) Polyurethane primer (solvent-borne) Epoxy (waterborne) Preferred Recommended

* Median particle size by laser diffraction

InhibisilTM Anti-Corrosion Pigments

InhibisilTM anti-corrosion pigments are designed to replace chrome-based and other toxic anti-corrosion pigments, and can be used in both solvent-borne and waterborne primers. In addition to being non-toxic and environmentally friendly, Inhibisil products are highly efficient at a competitive cost.

A test incorporating 1,000 hours of salt spray plus the application and removal of pressure tape shows the anti-corrosion performance and adhesive strength of Inhibisil 33 (left) compared to anti-corrosion pigment A (right).

Inhibisil 33

Anti-Corrosion Pigment A

Anti-Corrosion Pigments

Particle Size* Inhibisil 33 Inhibisil 73 Inhibisil 75 3 3 5 Grind Value Calcium Hegman Fineness Oxide pH (%) (µm) 7.1 7.1 6.6 11 11 18 3 7 7 9.5 10 10 Benefits Highly effective for thin-film, acid-cured primers, designed for use in solvent and waterborne systems, heavy metal-free, non-toxic. Higher calcium oxide content, elevated protective effectiveness for thin-film primers (solvent and waterborne), heavy metal-free, non-toxic. Higher calcium oxide content, elevated protective effectiveness for highfilm-build primers (solvent and waterborne), heavy metal-free, non-toxic.

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* Median particle size by laser diffraction

Lo -V e Lo l 27 -V e Lo l 275 -V e Lo l 29 -V e Lo l 39A -V e Lo l HS F -V e Lo l 200 -V 0 e Lo l 200 -V 3 e Lo l 600 -V 0 e Lo l 620 -V 0 e Lo l 66 -V e Lo l 201 -V 0 e Lo l 201 -V 8 e Lo l 202 -V 3 e Lo l 203 -V 3 el 8 Hi -S 100 il Hi T-15 -S 2 il Hi T-60 -S 0 il Hi T-70 -S 0 il Inh T-80 0 ibi s Inh il 33 ibi s Inh il 73 ibi sil 75

A cone and plate viscometer is used to determine the viscosity of a coatings formulation.

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A field-emission scanning electron microscope (FESEM) enables visualization of nanometer-scale topographic details on the surface of a coatings film.

A Company of Ideas. A Company of Ideals.

Based in Pittsburgh, Pa., PPG Industries is a global supplier of paints, coatings, optical products, specialty materials, chemicals, glass and fiber glass. The company was founded in 1883 and has approximately 40,000 employees working in more than 60 countries around the world. PPG's global leadership is based on a legacy of innovation. With research and development centers in the United States, Europe, China and around the world, PPG invests hundreds of millions of dollars each year in creating new and improved products, and in adapting existing technologies to fit the needs of new markets and applications. At PPG, development efforts are directed at more than making better products. Environmental sustainability is the driving force behind virtually all our research initiatives, whether the goal is to improve internal production processes or to make products that are more energy efficient or easier to dispose. To learn more, visit our website or call: www.ppgsilica.com 1-800-243-6745 in the United States +31-596-676710 in Europe.

USA PPG Silica Products 440 College Park Drive Monroeville, PA 15146 USA 1-800-243-6745 www.ppgsilica.com

Statements and methods presented are based upon the best available information and practices known to PPG Industries at present, but are not representations or warranties of performance, result or comprehensiveness. Further, the information provided herein, including any specific reference to patents of other persons or entities, is not to be taken as a license to operate under or a recommendation to practice any patents, copyrights, or any other intellectual property right of any person or entity. © 2010 PPG Industries, Inc. All Rights Reserved. Hi-Sil, Inhibisil and Lo-Vel are trademarks of PPG Industries Ohio, Inc.

EUROPE PPG Industries Chemicals bv Silica Products P.O. Box 181 9930 AD Delfzijl, Netherlands +31-596-676710

Printed on Teslin® SP1000 Digital substrate from PPG Industries. www.teslin.com 2886 EN 0910

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