Product Description
A PTFE Gasket Sheet is a versatile material used for creating custom gaskets in a variety of industrial applications. It is made from Polytetrafluoroethylene (PTFE), either in pure form or with additional materials to enhance specific properties. Here's what it typically contains:
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1. Base Material: PTFE
- Pure PTFE:
- The sheet is primarily made of 100% virgin PTFE, known for its excellent chemical resistance, high-temperature tolerance, and non-stick properties.
2. Variants with Fillers
To enhance mechanical or thermal properties, PTFE sheets can include various fillers:
- Glass Fiber:
- Improves dimensional stability and wear resistance.
- Carbon or Graphite:
- Enhances thermal conductivity and reduces creep.
- Bronze:
- Increases wear resistance and reduces deformation under load.
- Barium Sulfate:
- Improves compressive strength and creep resistance in chemical applications.
3. Expanded or Modified PTFE (Optional)
- Expanded PTFE (ePTFE):
- Offers enhanced flexibility, adaptability to uneven surfaces, and better sealing performance.
- Modified PTFE:
- Provides reduced cold flow and better mechanical stability compared to standard PTFE.
4. Physical Features
- Thickness:
- Typically available in thicknesses ranging from 0.5 mm to 10 mm, but custom options are possible.
- Surface Finish:
- Smooth, non-porous surface to prevent leakage and contamination.
- Form:
- Supplied as sheets, rolls, or custom-cut shapes based on the application.
5. Compliance and Certifications
- FDA Approval:
- Safe for food and beverage applications.
- USP Class VI:
- Suitable for pharmaceutical and medical applications.
- ASTM and ISO Standards:
- Meets requirements for industrial and environmental safety.
Applications
- Chemical Processing: Resistant to aggressive chemicals and solvents.
- Food and Beverage: Non-toxic and sanitary for direct food contact.
- Pharmaceuticals: Ideal for clean and sterile environments.
- Industrial Sealing: Used in gaskets for pipelines, flanges, and vessels.