ACM IMPACT MODIFIER is an unique impact modifier which is an interpenetrating network copolymer (IPN ) with the structure of CPE grafted Polyacrylate . It has balance impact strength and toughness which endow it better performance than other general type impact modifiers like CPE and MBS. Excellent impact strength under low temperature Excellent toughness and hardness for PVC products. Better weather-resistance better surface glossiness for PVC finished products