Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Fillers Included
- Polymer Name
- Reinforcement Material
- Technologies
Features & Benefits
- Materials Features
- Key Benefits
- Wear resistant
- Higher coefficient of friction
- Improved hardness
- Abrasive filler unsuitable for some applications
- Lower thermal expansion
- Resistance to gas permeation is reduced
- Lower deformation under load
- Non-conductive
- Products Features
- Improves creep resistance, both at low and high temperatures
- Chemically stable (except for strong alkalis and hydrofluoric acid (HF))
- Little effect on the electrical properties of PTFE, and improves wear and friction behavior
PTFE Glass filled is very commonly used in valve seat applications. Increased compressive strength and creep resistance of the material allow much greater pressure on the valve seat and as such a much higher rated valve.
Applications & Uses
- Markets
- Applications
- Plastics & Elastomers End Uses
- Applications
- Pump housings
- Pump and instrument construction
- Valve seats and sealing applications
- Electrical industry
- Gaskets
- Electronics
- Roller coverings
- Laser technology
- Shaft bearings
- Fume purification
- Filter housings
- Pure water production
- Etching plates
- Cryogenics
- Shaft seals
- Filter technology
- Slide runners
- Food and medical technology
- Chemical engineering
- Machine parts
- Transport and conveyor technology
Properties
- Mechanical Properties
- Physical Properties
- Thermal Properties
- Typical Properties
- Electrical Properties
| Value | Units | Test Method / Conditions | |
| Density (23°C) | 2.2 - 2.3 | g/cm³ | D792 |
| Tensile Strength at Break | 150 - 240 | Kg/cm² | D638 |
| Compressive Stress (%1 Deformation, 23°C) | 65 - 70 | Kg/cm² | D695 |
| Total Deformation | 9.5 - 13.5 | % | D621 |
| Permanent Deformation | 4 - 8 | % | D621 |
| Elongation at Break (23°C) | 200 - 270 | % | D638 |
| Hardness | 64 - 68 | Shore D | D2240 |
| Impact Resistance (Izod, Notched) | 12 - 15 | Kj/m² | D256 |
| Total Deformation Under Weight (10 kg/cm² Load, 150°C, 24 hours) | 2.6 - 2.8 | % | — |
| Total Deformation Under Weight (50 kg/cm² Load, 150°C, 24 hours) | 15 - 16 | % | — |
| Value | Units | Test Method / Conditions | |
| Coefficient of Friction (Static) | 0.07 | — | — |
| Coefficient of Friction (Dynamic) | 0.09 | — | — |
| PV Limits (3 m/min) | 215 - 220 | kg.cm³.min | — |
| PV Limits (30 m/min) | 270 - 300 | kg.cm³.min | — |
| Value | Units | Test Method / Conditions | |
| Coefficient of Linear Thermal Expansion (25°C-100°C, [x10^-5]) | 7- 11.5 | °C-1 | D696 |
| Coefficient of Linear Thermal Expansion (25°C-100°C, [x10^-5]) | 7.5 - 14 | °C-1 | D696 |
| Coefficient of Linear Thermal Expansion (25°C-100°C, [x10^-5]) | 8.5 - 18 | °C-1 | D696 |
| Heat Conductivity (30°C, [x10^-4]) | 10 - 11 | Cal/cm.sn.°C | — |
| Maximum Allowable Service Temperature in Air - Continuous | 270 | °C | — |
| Maximum Allowable Service Temperature in Air - Continuous | -260 | °C | — |
| PV Limits (300 m/min) | 330 - 340 | kg.cm³.min | — |
| Value | Units | Test Method / Conditions | |
| Surface Resistivity (23°C, RH 50%) | min. 10^15 | Ohm | D257 |
| Density (23°C) | 2.2 - 2.3 | g/cm³ | D792 |
| Value | Units | Test Method / Conditions | |
| Dielectric Loss Factor Dry (50 Hz, 23°C) | 0.0007 | — | D150 |
| Electric Strength Shortterm (0.1 mm) | 13 - 16 | Kv/mm | D149 |
| Relative Permittivitiy (50Hz-107Hz) | 2.5 - 2.8 | — | D150 |
| Surface Resistivity (23°C, 50% RH) | min. 10^15 | Ohm | D257 |
| Volume Resistivity (23°C) | min. 10^13 | Ohm-cm | D257 |