Joint sealant is FDA/USDA approved. Produced by expanding 100 percent virgin PTFE into a highly fibrillated structure which provides for outstanding versatility. Upon compression, it forms a thin, hard ribbon that fills in surface irregularities and creates an extremely tight seal. 0-14 ph. range and will not contaminate flow media; Temperature range, -269°c to +315°c (-452°f to +600°f). Pressure Range: Full Vacuum to 3,000 psi
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