PTFE (Teflon®) Gaskets
Shop all PTFE (Teflon®) Gaskets
Important: If you have any uncertainties about what material to use, just call us! We have employees that have been selling gaskets and servicing gasket applications for decades. We have sold gaskets in over 100 different materials! What follows below are generalizations for different categories of gasket materials. Use the information below only as a general guideline, and not as advice for your specific application.
PTFE (Teflon®) Gaskets: Simply, PTFE is a plastic incredibly resistant to chemicals, making it an ideal gasket material in certain applications. Technically, polytetrafluoroethylene is a fluoropolymer (contains flourine and carbon) originally developed by DuPont® in 1938. PTFE has one of the lowest coefficients of friction of any solid. It is non-reactive, partly because of the strength of carbon–fluorine bonds, and so it is often used in containers and pipework for reactive and corrosive chemicals. (more technical info) PTFE is commonly used in applications with corrosive chemicals, as well as in food processing and pharmaceutical applications. However, PTFE has lower heat thresholds than graphite or fiber-based gasket materials.
| Common Materials (Available Online) | All Materials We Carry (call for items not sold online) - Alphabetical by Material Class | ||
| PTFE (Teflon) | PTFE (Teflon) | ||
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DURLON® 9000N DURLON® 9200W GARLOCK® 3500 GARLOCK® 3504 GARLOCK® 3540 |
GARLOCK® 3545 GARLOCK® 3565 TEFLON® TEADIT® 1570 TEADIT® 1580 TEADIT® 1590 TEADIT® QUIMFLEX SH |
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Durlon® 9000 Specs
| Specification: | Value: |
| Materials | Inorganic |
| Temperature Minimum | -350° F |
| Temperature Maximum | 520° F |
| Continuous Temp Max. | 548° F |
| Pressure Max. | 1500 psig |
| Density | 2.2 g / cm3 |
| Tensile Strength | 2,000 psi |
| Compressibility ASTM F36 | 8 - 16% |
| Recovery ASTM F36 | 40% |
| Sealability F37 (Fuel A) | 0.01 mL/hr |
| Sealability F37 (Nitrogen) | 0.02 mL/hr |
Garlock® Gylon® 3510 Specs
Shop Garlock® Gylon® 3510 Gaskets
| Specification: | Value: |
| Materials | PTFE with Barium Sulfate |
| Temperature Minimum | -450° F |
| Temperature Maximum | 500° F |
| Continuous Temp Max. | NA |
| Pressure Max. | 1,200 psi |
| Density | 1.6 g / cm3 |
| Tensile Strength | 2,250 psi |
| Compressibility ASTM F36 | 4-10% |
| Recovery ASTM F36 | 40% |
| Sealability F37B (Fuel A) | 0.04 mL/hr |