Product Catalog Product Catalog > Optical Brightener OB  Total 9 items Showing 7   Prev   Next  click for larger photo Optical Brightener OB Name︰ Optical Brightener OB Model No.︰ C.I.184 Brand Name︰ PR-OB Product Description Apply to the whitening process of polyolefin, PA, PAN as well other plastics. Widely be used for films, injection molding and extrusion forming, applied to all kinds of plastics processing stages. Dosage: 0.01%～0.05% Product Image  Total 9 items Showing 7   Prev   Next  Related Products Optical Brightener KCB Optical Brightener KSN Antioxidant 168 optical brightener ER-2 Build your FREE website Find Made in China resin Products !