| Anionic/non-ionic polyester urethane polymer. As the film-forming component in glass fiber sizes. Properties / Applications: Baybond® PU 401 A was developed for the sizing of glass fibers used to reinforce thermoplastics, particularly polyamide. Glass fiber sizes based on Baybond® PU 401 A are characterized by their outstanding film-forming properties and very good adhesion. They have high colorfastness, even at elevated temperatures. Baybond® PU 401 A is also very stable against shear forces. Information provided by Covestro |
