WHITE ABS PLASTIC SHEETS 24" X 24" BY 1/4" THICK

You are buying ONE pack a piece of WHITE ABS 24" x 24" by 1/4" in thickness.This is TEXTURED on the front, and SMOOTH on the back.ABS is a terpolymer made by polymerizing styrene and acrylonitrile in the presence of polybutadiene. The proportions can vary from 15 to 35% acrylonitrile, 5 to 30% butadiene and 40 to 60% styrene. The result is a long chain of polybutadiene criss-crossed with shorter chains of poly(styrene-co-acrylonitrile). The nitrile groups from neighboring chains, being polar, attract each other and bind the chains together, making ABS stronger than pure polystyrene.