Modified PTFE Gasket
Modified material that improves some properties of standard PTFE
Modified PTFE gaskets use selected fillers or other material modification systems within a PTFE matrix. These systems are generally intended to improve creep behavior, compression characteristics, or suitability for particular media. Different formulations offer different performance characteristics, with grades selected using their technical data and the service conditions.
- Dimensional stabilityDepending on formulation, better dimensional stability and stress retention
- Chemical resistanceGrade chosen for the medium
- Easy removalNon-stick surface, easy to remove and clean
Features
- Depending on the modification system, dimensional stability and stress retention can be improved relative to conventional PTFE.
- Grades for acids, alkalis, solvents and other media are selected using the specific formulation and its material data.
- Available in ring, full-face, and nonstandard profiles.
- Low surface adhesion facilitates clean disassembly.
Materials & configurations
| Component / Item | Material Options and Specification Details |
|---|---|
| Modification systems | Inorganic filler systems, including silica, barium sulfate, and hollow glass microspheres, depending on the specific grade |
| Configurations | Ring, full-face, and custom-profile gaskets cut to agreed shapes |
| Key properties | Material grade, filler system, color, thickness, and chemical compatibility |
Standards & supply options
- Standard dimensions to ASME B16.21, EN 1514-1 or EN 12560-1. Material grade, filler system and thickness selected for the medium.
Typical applications
- Piping handling corrosive chemicals and solvents.
- Equipment flanges in chemical, pharmaceutical, food, and fine chemical processing.
- Joints requiring both PTFE chemical compatibility and dimensional stability.
Selection & service notes
Different filler systems offer different chemical and mechanical properties. Select the material grade for medium, concentration, temperature, pressure and cleanliness, together with compression behavior and dimensional stability.
Dimensions & specifications
Detailed specification tables are being prepared. Include dimensions, thickness, mating flange, materials and service conditions in your enquiry.
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