SYNERGISTIC ANTI-CORROSIVE PIGMENTS
FOR IMPROVED COIL COATINGS
Columbia, Maryland (October 14, 1998) - Grace Davison, a unit of W. R. Grace & Co.-Conn., has announced that SHIELDEX® corrosion-inhibiting pigments can be combined in coil coating formulations with one or more complimentary anti-corrosive pigment technologies to increase the protective strength of the coating dramatically over coatings that rely upon just one anti-corrosive pigment.
Anti-corrosive or inhibitive inorganic primer pigments interact chemically, either directly or indirectly, with metal substrates to reduce the rate of corrosion. A wide range of inorganic primer pigments are available to formulators including chromates, phosphates, phosphites, molybdates, borates, and other anti-corrosive materials. The SHIELDEX line of anti-corrosive pigments are based on calcium-ion exchanged amorphous silica gel, and are highly compatible with other environmentally-friendly anti-corrosive pigments. They possess neutralizing power due to the basic character of the pigment surface, can be used in a wide variety of resin systems, and are highly effective due to their low density and high surface area.
Grace Davison’s SHIELDEX product line includes SHIELDEX® AC 5, a 5-micron particle size version for solvent-based and waterborne systems, SHIELDEX® AC 3, a 3-micron particle size micronized grade for wash primers or 2-K-paints, and SHIELDEX® C 303, a 3-micron particle size high performance grade for coil coatings, powder coatings, and acid curing systems.
Grace Davison, a leading specialty chemical company, has founded its success record on a tradition of responding to customer needs worldwide with technologically-superior products and services. Grace Davison is a major global supplier of silica-based products for coatings, pharmaceuticals, personal care products, food, plastics, and petrochemicals. The company is also a leading worldwide supplier of catalysts and additives to the oil refining, plastics, and chemical industries.
Guideline formulations and additional product information can be requested by contacting Grace Davison at 1-800-SYLOIDS (1-800-795-6437).
Media Contacts:
Anita Tyler, Grace Davison, (410) 531-4251
Paula Zakrzewski Shepard, Image Ink Public Relations, (860)
228-8056