Foam gaskets or silicone foam gaskets are very similar to silicone sponge gaskets, but the difference is how the foam gaskets are manufactured. Foam gaskets range in cell structure, from open cell to mainly closed cell. The open cell foam gaskets are used for shock or vibration applications, and the closed cell foam gaskets are used for environmental seals. Foam gaskets made from silicone are considered to be low temperature and high temperature gaskets, because silicone performs well in extreme temperatures. Silicone foam gaskets are also extremely stable under UV, and have a flame rating of UL94-V0, and are a perfect choice for electrical enclosure gaskets.