Closed Cell Foam is a versatile, medium firmess silicone that offers the lightness of a foam, with the enhanced sealing capabilities of a traditional sponge rubber. It meets the requirements of FDA regulation 21 CFR 177.2600. It is used to seal and protect various outdoor communication, electronic, and lighting enclosures, while providing protection against wind driven rain and fire. The material is also used to reduce shock or isolate vibration. It has a smooth skin on both sides and is also available with Pressure Sensitive Adhesive on one or both sides.