Paint coating system additive

The substitution of chemical solvents by water in paint and coating systems and also in cleaning processes creates complex evaluation issues, as the number of the various chemical components contained in the corresponding products generally increases. In addition, the release of persistent substances into the aquatic environment tends to be favoured by this. This therefore raises the question for assessing two suitable strategies containment of known hazardous substances in closed systems or substitution of the mobile solvent by complex water-based systems that are scarcely evaluable from a toxicological aspect. 

Organic coatings are used to block the penetration of carbon dioxide or chloride ions. They form a continuous polymeric film on the surface of the concrete, of a thickness ranging from 100 to 300 pm. The binder can already be present in the liquid paint as a polymer, or the polymer can be formed due to chemical reactions between monomeric components that are mixed just before application. Modem coating systems are usually built up of several layers applied consecutively. They are compatible with the alkalinity of the concrete and are based on various types of polymers (e. g. acrylate, polyurethane, epoxy), pigments and additives, and are made suitable for application by the addition of solvents or diluents. 

Chem. Descrip. Modified fluoroalkyl siloxane, water-based Uses Surf, modifier for oxidic, carboxy- and hydroxytunctional substrates (e.g., ceramics, metals, nat. fibers like cotton or wood) corrosion inhibitor for metal surfs. additive for sol-gel systems antitouling finish for marine hulls modifier for paints, varnishes antigraffiti coatings tor min. and metallic surfs. adhesion promoter for fluoropolymers (paints/coatings, lubricants) mfg. of nonstick cookware water- and oil repellent for textiles fluoro modifier for polymers... 

Uses Wax that reduces settling of pigments and other additives and provides antiblocking and gloss control props, in low-vise, paints/coat-ings, esp. water-reducible systems... 

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