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This is a composite sheet which incorporate non-asbestos sealing materials and perforated or flat metal sheet, either as a core or facing after processing with vulcanization and bonding technologies. The product contains NBR and aramid fiber with good compressibility and recovery, and small stress relaxation. The short duration maximum temperature is up to 400°C (750°F). WAG-TL1310 combines non-asbestos material and perforated carbon steel as a core. Technical Specifications Item Names Specification Density (g/cm3) ≥2.5 Compressibility (%, at 34.5 MPa) 8-18 Recovery (%) ≥40 Stress Relaxation (%) ≤30 Ignition lost (%, at 800°C,1h) ≤15 Fluid Resistance (at ASTM standard oil #3, 150°C, 5h) Change in Weight (%) ≤30 Change in Thickness (%) ≤20 Fluid Resistance (at ASTM fuel B, 21-30 °C, 5h) Change in Weight (%) ≤30 Change in Thickness (%) ≤20