A marshmallow-shaped free-size sealing material, which has been modified to be flexible and very tough, while maintaining the PTFE's excellent chemical resistance and heat resistance properties. These are for the temporary repairs. Features: Excellent chemical resistance, Heat resistance, Good workability. Temperature: -240 to 260oC/-400 to 500oF. Pressure (MPa): Max 2.0 (gas), Max 5.0 (liquid). Suitable fluids: General fluids (water, steam, oil, etc.), solvents, corrosive liquids. Applications: Large diameter equipment (rough finished flange, strained flange, insufficient tightening force), tanks, heat exchangers, pressure vessels, duct flanges, pipe flanges, gland packing for valves. Oval type - VALQUA® No. 7GS66A: String shaped product with an oval cross-section [string type] and adhesive to improve workability.