Application
Properties
Application
- Sealmax Style 9909 is a 100% multi-directional expanded PTFE (ePTFE) high-performance sealing material engineered to meet the critical requirements of a wide range of industrial applications.
- The expanded PTFE structure provides uniform tensile strength in all directions, ensuring superior dimensional stability, excellent creep resistance, and long-term sealing reliability, even under demanding and dynamic operating conditions.
- It prevents cold flowand material relaxation over-time, making it especially suitable for load-sensitive or high-temperature flange connections and ensuring tight sealing across broad spectrum of pressure and temperature ranges.
Properties
- Multi-directional strength for uniform mechanical performance and enhanced sealing life.
- Expectational chemical resistance: inert to virtually all corrosive chemicals (PH 0-14)
- Excellent compressibility accommodating flange and irregularities.
- Non-toxic and non-contaminating: suitable for high-purity and food-grade applications
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Technical Specifications
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SR.NO.
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PROPERTIES
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UNIT
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Test Method Reference
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Specified Values
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1.
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Density
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gm/cm3
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ASTM D-792
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0.75 – 0.85
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2.
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Tensile Strength (Min.)
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Mpa
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ASTMD-638
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> 15
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3.
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Compressibility
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%
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ASTM F36
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50-65%
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4.
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Recovery
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%
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ASTM F36
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10-15%
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5.
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Creep relaxation (22 hrs at 100⁰C)
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%
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ASTM F38
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≤ 35%
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6.
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Maintenance factor (m)
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–
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–
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2.5
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7.
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Seating stress (y)
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–
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–
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2800 psi
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General Specifications
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SR.NO.
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Parameters
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Specifications
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Remarks
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1.
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Material
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100% Multi-directional Expanded PTFE
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No fillers or pigments
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2.
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Colour
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White
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–
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3.
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Operating Temperature
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–200°C to +260°C (–328°F to +500°F)
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Short-term exposure up to 300°C possible
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4.
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Pressure range
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Vacuum upto 200 bar (3000 Psi)
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Depends on the installation situation
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5.
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Shelf Life
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Unlimited under proper storage
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Non-ageing material
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6.
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Available thickness
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0.5mm to 6.0mm
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–
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7.
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Available forms
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Sheets, gaskets
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Customized gaskets on request
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