Industrial Gasket and Sheet Packing Materials
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• Lightweight rubber, heavy-duty rubber, & PVC conveyor belt |
• Lightweight thermoplastic belt |
• Oil and non-oil resistant rubber:
- Diaphragm & cloth-inserted rubber sheet - Rubber sheet packing (all polymers) - Open & closed cell sponge and foam |
- Pure gum (natural rubber) - Cork/rubber sheet - White FDA food-grade rubber |
- Silicone rubber - Masticated rubber - Compressed non-asbestos sheet |
Specialty Application Materials
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• UHMW polyethylene (Ultra-High Molecular Weight) |
• AASHTO shock & structural bearing material |
• HDPE (High Density Polyethylene) |
• Military specifications |
• LDPE (Low Density Polyethylene) |
• Ballistic materials |
• Lining materials for abrasion & wear protection |
• Various composite materials |
Common Sheet Packing Polymers
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• Butyl (IIR / isobutyl-isoprene): Excellent weathering and dialectic properties with low air permeability. Good physical properties. Poor resistance to petroleum-based fluids. TEMP: -30°F to +212°F> |
• Nitrile (NBR / Buna-N / butadiene- acrylonitrile): Excellent resistance to petroleum-based fluids. Good physical properties. TEMP: -40°F to +200°Fl |
• EPDM (ethylene-propylene diene): Excellent ozone, chemical, heat and aging resistance. Poor resistance to petroleum- based fluids. TEMP: -40°F to +250°F |
• Silicone (SI / Dimethyl- Polysiloxame): Excellent high and low temperature properties, fair physical properties. TEMP: -80°F to +500°F |
• Hypalon® (CSM / chloro-sulfinated polyethylene): Excellent ozone, weathering, and acid resistance. Good abrasion and heat resistance. Fair resistance to petroleum-based fluids. TEMP: -20°F to +170°F |
• SBR (Styrene Butadiene Rubber): Excellent abrasion resistance and low temperature properties. TEMP: -20°F to +180°F |
• Natural Rubber (NR / Gum Rubber): Excellent physical properties, including abrasion and resistance. Good flexibility at low temperature. Poor resistance to petroleum-based fluids. TEMP: -20°F to 180°F |
• Urethane (polyurethane): Good aging and excellent abrasion, tear and solvent resistance. Poor high temperature properties. TEMP: -58°F to +180°F |
• Neoprene (CR / polychloroprene): Good weather resistance and good inherent flame resistance. Moderate resistance to petroleum-based fluids. Good physical properties. TEMP: -20°F to 190°F |
• Viton® (FPM / hexafluoro- propylene vinylidene fluoride): and Excellent oil- air- resistance at both low and high temperatures. Very good chemical resistance. TEMP: -20°F to +450°F |
Hypalon® and Viton® are registered trademarks of DuPont Performance Elastomers.