Non asbestos composite sheet

Non asbestos composite sheet Non-asbestos sealing materials incorporate perforated sheet as a core and non-asbestos sheet as facing on both sides after processing with vulcanization and bonding technologies. Reinforced with carbon steel, non-asbestos composite sheet has outstanding performance for applications in the working environment of corrosion, high temperature and dynamically stressed. 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).Item NamesSpecificationDensity (g/cm3)≥2.5Compressibility (%, at 34.5 MPa)8-18Recovery (%)≥40Stress Relaxation (%)≤30Ignition lost (%, at 800°C,1h)≤15Fluid ResistanceChange in Weight (%)≤30(at ASTM standard oil #3, 150°C, 5h)Change in Thickness (%)≤20Fluid ResistanceChange in Weight (%)≤30(at ASTM fuel B, 21-30 °C, 5h)Change in Thickness (%)≤20