ABS Plastic Sheet – 1/4″ thick (6mm)-Black – 28″ x 20″ – Vacuum Forming Hobby
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).