Crayvallac WN-1875 Atofina-Cray Valley Surface conditioner, miscellaneous >> Matting agent Coatings >> Solventborne Inks Coatings >> Waterborne INKS CRAYVALLAC WN-1875 is a finely micronised polycondensate plastic for use in a wide range of water-based and solvent-based applications, where it provides a matting and satin effect. CRAYVALLAC WN-1875 is resistant to those solvents and chemicals commonly used in the coatings industry. Heat resistance, weather resistance and light stability are most favourable with this product. It possesses matting and satin effect agent for use in a wide range of applications e.g. air-drying, stoving finishes and UVcuring, good heat resistance, weather resistance and light stability. The small binder demand of CRAYVALLAC WN-1875 results in very little increase in the viscosity of coatings. This makes CRAYVALLAC WN-1875 particularly useful as a partial replacement for silica matting agents, particularly in UV lacquers. The potential uses of CRAYVALLAC WN-1875 are NC/alkyd finishes, acid curing systems, polyurethane and stoving finishes. Also printing inks and water dilutable systems, a sole matting agent in lacquers which can be flatted easily, such as nitrocellulose, NC/alkyd, urea, melamine. In lacquers with binders that are more difficult to flat it is recommended to use CRAYVALLAC WN-1875 in combination with silica matting agents, gives a smooth and scratch resistant surface. The product does not influence the physical properties and recoatability of the dry lacquer film unlike silica matting, exceptional heat resistance allows use in stoving finishes up to 200°C (392°F) without showing a seeding effect, which can occur with other waxes at these temperatures, improves durability of exterior matt finishes, contributes to UV resistance and minimises chalking, avoids viscosity build up in UV coatings and inks, excellent recoatability. Finely micronised polycondensate plastic. Used in coatings and printing inks. Offers good heat resistance, weather resistance and light stability. Provides a matting and satin effect and very good recoatability.