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Formula: PTFE 25% GF
Form: Rod
Material: PTFE filled with Glass
Commodity: Polymers
PTFE filled with Glass Rods are made from a composite material that has a balance of properties by combining polytetrafluoroethylene (PTFE) polymer with glass filler. We offer 37 variations of these versatile rods that provide chemical inertness and low friction, while the glass enhances mechanical strength and rigidity. The percentage of glass filler can be varied to tune mechanical and thermal properties for applications like bearings, seals, valve seats and electrical insulators. This makes PTFE filled with Glass Rods valued across industrial, chemical and medical settings.
Tolerances
Rod
| Diameter | +20% / -10% |
|---|
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Poor |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Good-Fair |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good |
| Halogens | Good |
| Ketones | Good |
Mechanical Properties
| Element | Value |
|---|---|
| Coefficient of friction | 0.08-0.1 |
| Hardness - Rockwell | D60-70 - Shore |
| Elongation at break( % ) | 100-300 |
| Tensile modulus( GPa ) | 1.7 |
| Izod impact strength( J m⁻¹ ) | 144 |
| Tensile strength( MPa ) | Jul-20 |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 2.2-2.35 |
| Dissipation factor @ 1kHz | 0.003 |
| Dielectric strength( kV mm⁻¹ ) | 40 |
| Surface resistivity( Ohm/sq ) | 10¹⁵ |
| Volume resistivity( Ohmcm ) | 10¹⁶ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V0 |
| Resistance to Ultra-violet | Good |
| Limiting oxygen index( % ) | 95 |
| Water absorption - over 24 hours( % ) | 0.15 |
| Density( gcm⁻³ ) | 2.25 |
Thermal Properties
| Element | Value |
|---|---|
| Upper working temperature( C ) | 260 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.33-0.42@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 75-100 |
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