PROFESSIONAL QUALITY: This Neoprene Rubber is NOT Sponge or Foam, it is Solid Rubber. The Rubber is Black in Color and Smooth on Both Sides, No Adhesive Backing SUPERIOR PROPERTIES: Temperature Range -20° to 212°F, This is an Oil Resistant Synthetic Rubber that has Exceptional Durability, Stretch, and Strength. It Remains Firm and Flexible in a Wide Range of Temperatures and Conditions MULTITUDE OF USES: Can be Used in the Garage, at Home, Industrial Settings, and for a Wide Range of DIY projects. Cuts Easily w Knife/Scissors MADE IN THE USA: Manufactured in Fountain Valley, CA GREAT GASKET MATERIAL: 50A Durometer Gives this Soft Rubber Material a Firm Surface with Excellent Pliability Exactly Rubber’s Neoprene is a tough elastomer sheet that is ideal for industrial applications. It is a synthetic rubber with good resistance to oils, chemicals, and many damaging effects of weather. The neoprene rubber holds up against acetic acids, petroleum-based solvents, and certain oils and chemicals without showing wear for a long time. Neoprene rubber is also highly valued in outdoor applications, as it can withstand UV rays, ozone, and damaging weather effects. Our solid rubber sheets offer excellent all-around resistance, making it versatile enough for indoor and outdoor applications alike. Another key feature of this neoprene blend is its temperature range and resistance. The sheet neoprene performs well in temperatures from -20°F to 212°F, which makes it the ideal choice for most industrial applications. The 50A durometer neoprene is strong yet pliable, making it versatile enough for any application from insulation to making gaskets.