... ester, phenolic and epoxy resins Direct roving For Filament Winding, BH318,BH386,BH312 Introduction E-Glass Direct Roving for ... Filament Winding are designed for reinforcing unsaturated polyester, vinyl ester, ... compatible Sizing Products Application: E-Glass Direct Roving for Filament Winding are typically used to produce pipes of various diameters, ...