Rulon LR
Overview
What is the Material: Rulon LR is a semi-crystalline material. It is a modified PTFE (Teflon) filled with a proprietary ceramic additive.
Key Material Features: This material is beneficial in wear and bearing applications requiring chemical resistance.
Other Considerations: It is designed to reduce deformation under load. It does not perform well in tight tolerance applications.
Physical
| Property | Value | Typical ASTM Test |
|---|---|---|
| Chemical Designation | (PTFE) Polytetrafluoroethylene | |
| Trade Names (®, ™) | Rulon LR | |
| Filler | Proprietary Additives | |
| Color | Maroon | |
| Density (g/cm^3) | 2.25 | D 792 |
Mechanical
| Property | Value | Typical ASTM Test |
|---|---|---|
| Modulus of Elasticity (Tensile Test) (psi) | 50000 | D 638 |
| Tensile Strength at Yield (psi) | 2700 | D 638 |
| Elongation at Break (%) | 235 | D 638 |
| Modulus of Elasticity (Flexural Test) (psi) | 60000 | D 790 |
| Compression Strength: 1% Strain (psi) | 750 | D 695 |
| Compression Modulus (psi) | 80000 | D 695 |
| Hardness (D) | 65 | D 785 |
| Coefficient of Friction (Kinetic, 40 psi, 50 fpm) | 0.20 | D 3702 |
Thermal
| Property | Value | Typical ASTM Test |
|---|---|---|
| Service Temperature Continuous (°F) | 550 | |
| Thermal Conductivity (BTU-in/hr-ft^2-°F) | 2.30 |
Electrical
| Property | Value | Typical ASTM Test |
|---|---|---|
| Specific Surface Resistance (Ω/square) | 2.00E13 | D 257 |
| Volume Resistivity (Ω*cm) | 1.00E5 | D 257 |
| Dielectric Strength (V/mil) | 900 | D 149 |
| Dissipation Factor (1MHz) | 0.0025 | D 150 |
| Dielectric Constant (1MHz) | 2.5 | D 150 |
Other
| Property | Value | Typical ASTM Test |
|---|---|---|
| Moisture Absorption (%) (24 Hours) | 0.0 | D 570 |
The data stated are typical values intended for reference and comparison purposes only. The data should not be used as a basis for design specifications or quality control. The information is provided as a guide to the best of our knowledge and given without obligation or liability. Testing under individual application circumstances is recommended.