Aliphatic, anionic polyurethane dispersion. Binder for the formulation of water-reducible coatings and sealers. Properties / Applications: The product is characterized by high resistance to yellowing, very good wet film transparency and very good abrasion resistance (taber). Films are hard but flexible. Post-curing of such coatings with Bayhydur®, for example, brings additional significant advantages and results in waterborne two-component coatings with significantly higher mechanical and chemical resistance. The mixing ratio of mill base to hardener is generally 10 : 1. Compatibility with affordable PAC dispersions is good but must be tested on a case-by-case basis. Information provided by Covestro |