High quality firm polyurethane foam for compounding 2-pack paint systems. Ideal for automotive and marine applications. Compatible with M14 x 2 male connection sander polishers and grinders. Max 4600rpm. High quality firm polyurethane foam for compounding 2-pack paint systems. Ideal for automotive and marine applications. Compatible with M14 x 2 male connection sander polishers and grinders. Max 4600rpm.