... products of thinwall, seal,gasket,club,panel,tube, No.Item . DF- 16 Grade AQualified1Smoothness & CleanessWhite sheet surface,even texture,no residue ... Density,(g/L)300-4505Residue on sieve (65 μ m)(%)≤36Moisture Content.(%)≤0.047Melting Point(°C372±58Stand Relative Density2.130-2.1609Thermal ... ,axletree,seal ring,andloop ,filling compounds.etc. PTFE molding powder DF-16