Merck’s new generation core-shell nanoparticle Durazane^® 5500 anti-scratching additive is a dispersion based on functional silica particles. It can bring excellent scratch resistance to high gloss solvent based two-component polyurethane coatings, without detrimental impact on the original film performance. And there are no compatibility problems such as particle aggregation, fogging and viscosity increase. It can keep the perfect high gloss and bright surface for a long time. It can be used in automotive exterior & interior paint, industrial paint, plastic paint, wood paint, etc.