Coating Surface Modifier Durazane 5500

Additive capable of imparting scratch resistance to high-gloss solvent-based two-component PU coatings - Polymer-modified core-shell structured nano SiO2 particles.

Merck's functional material Durazane includes organic polysilazane and inorganic polysilazane that can be used as binders for paints, as well as polymer-modified core-shell structured nano SiO2 particles as additives to improve scratch resistance. ◇◆Features of Durazane 5500◆◇ ■ Additive: Used at a low concentration of 1 to 2.5 w/w % 50% solution of modified SiO2 nanoparticles in butyl acetate ■ Improves the scratch resistance of the coating without compromising reflow operations ■ Compatible with solvent-based two-component polyurethane systems (water-based solvents cannot be used) ■ Mainly used for high-performance clear coats for automotive exteriors and interiors

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