BYK glass fiber sizing products lead to enhanced mechanical properties of polyolefin-based matrix composites and a distinctly improved bonding of the fibers with the polymer matrix. BYK is the only supplier in the world that is producing MAH grafted polymers and the film formers made from them especially designed for the manufacture of glass fiber sizing for chopped strands and continuous fibers. BYK’s unique proprietary technology has allowed for the commercialization of MAH grafted polymers that are both high in molecular weight and %MAH grafting. The BYK produced film formers also offer the lowest VOC content in the market . Our R&D capabilities and 100% in-house production ensure fast development times and tailored products for our customers that we supply from our production sites in Europe, USA or China.