Cra is our unique pvc impact modifier developed by our r&d center, which is an interpenetrating network co polymer (ipn), its main function is to enhance the impact strength of pvc finished products under low temperature and to promote the fusion property of pvc blend. It can endow the best impact-resistance and toughness to pvc final products than other pvc impact modifiers. In addition cra series have better weatherability owing to it has not any chemical double bond. Cra series are insoluble in water and ethanol, but soluble in acetone and chloroform classifications: (1)cra-01m:replace opaque mbs (2)cra-02a:replace aim(acrylic impact modifier) (3)cra-03ca:replace cpe+aim(acrylic impact modifier) with less dosage (4)cra-04cp:replace cpe+pa(processing aid)or 100% cpe with less dosage cra’s benefits: ● excellent impact strength under low temperature ● excellent toughness and hardness for pvc products. ● excellent corner welding strength for pvc profile ● excellent nail-force for wpc. ● better weather-resistance ● better surface glossiness for pvc finished products technical specifications: items cra-01m cra-02a cra-03ca cra-04cp test method appearance white powder bulk density, gcm3 0.30 min gbt 1636-2008 sieve residue(30 mesh) , % 98 min gbt 2916 volatile content , % 1.5 max astm d5668 izod impact strength higher--------------------------lower gbt 1843-2008 application fields: cra series are mainly used to produce opaque pvc products, such as pvc profiles, pvc pipes, pvc sheet , pvc panel , wpc etc.