Key Features
- Made from 100% virgin PTFE for maximum purity and consistency
- Excellent chemical resistance – compatible with most acids, alkalis, and solvents
- Wide temperature range from -100°C to +260°C
- Ultra-low coefficient of friction for smooth dynamic sealing
- Non-stick surface prevents material buildup and contamination
- Low water absorption (<0.01%) for stable dimensions in wet environments
- Easily machinable – can be turned, drilled, and cut to custom shapes
- Ideal for marine gaskets, valve packing, and pump seals
Technical Specifications
| Specification | Value |
|---|---|
| Material | Virgin Polytetrafluoroethylene (PTFE) |
| Density | 2.1 – 2.3 g/cm³ |
| Tensile Strength | 20 – 35 MPa |
| Elongation at Break | 200 – 400% |
| Hardness (Shore D) | 50 – 65 |
| Temperature Range | -100°C to +260°C (continuous) |
| Water Absorption | <0.01% |
| Available Diameters | 3 mm to 50 mm (1/8″ to 2″) |
| Standard Length | 1 m or 2 m (custom lengths on request) |
Frequently Asked Questions
What are PTFE rounds used for?
PTFE rounds are commonly used to make custom gaskets, valve stem packing, pump seals, and back-up rings in marine pipeline systems, hydraulic equipment, and general shipboard machinery.
Can PTFE rounds be used in potable water systems?
Yes, virgin PTFE is FDA-approved for food contact and is safe for potable water applications. It does not leach chemicals and is non-toxic.
What is the maximum operating temperature?
PTFE rounds can continuously operate at temperatures up to 260°C (500°F) and can handle short-term spikes to 300°C. They also remain flexible down to -100°C.
How do I cut PTFE rounds to size?
PTFE is soft and can be cut with standard hacksaw blades, band saws, or CNC lathes. For thin gaskets, use a sharp knife or gasket cutter. Precision machining is recommended for tight tolerances.
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