Closed Cell Neoprene offers good resistance to acid, alkali, gasoline, and oil. It is excellent for applications that require resistance to UV, oxidation, and ozone in long-term outdoor applications. This series of closed cell Neoprene is a 100% Neoprene rubber and is available in Soft (SCE41NEO), Medium (SCE42NEO), and Firm (SCE43NEO) density and has a temperature range of -70° F to +200° F.