... ~ 220Chemical ResistanceConcentrated acids : excellent ,Acetone : bad ,Hydroxides : excellent ,Benzene : excellentCrude oil : excellent, Toluene : excellent , Fuel C : excellent ,Gasoline : very good ,Water ... sealing items.backups , dowty seals, u seals,o rings, wipers, oil seals, piston seals, v packings, rod seals, wear rings, piston ...