two-component polyurethane coatings, polyurethane soft foam and polyurethane thermoplastic elastomer, specially in polyurethane products such as micro-cell foam, integral skin foam, traditional rigid foam, semi-rigid, soft foam, fabric coating, some adhesives, sealants and elastomers and polyethylenechloride, vinyl polymer such as acrylic resin having excellent light stability. Absorbing UV light of 300~330nm