... . It is a "core -shell" structure modifier, with cross-linked poly butyl acrylic as "core"and graft methyl methacrylate as ... and broadly used in PVC profiles, sheets, boards, pipes, pipe fittings, etc.Physicochemical properties: IndexLS-21,LS-51,LS- ... opaque productsUse(Outdoor transparent)sheets, profilesProfiles, sheets, pipes, pipe fitting, etc.Recommended dosage(phr)Impact Modifiers6~95~86~84 ...