Fluoroloy®
High Performance Materials
Fluoroloy brand grades are custom formulated PTFE compounds engineered for extreme and specialty applications. These materials hve been developed to perform in the most diverse and challenging conditions.
- Low friction and wear
- Broad chemical compatibility
- Use temperature from -400°F to 600°F (-240°C to 316°C)
Fluoroloy materials are available in rod, tube, sheet, and tape.
Need More Info about Fluoroloy Materials?
Fluoroloy® Grades Comparison Chart
Use this materials chart1 to determine which formulation will work best for your application.
| Category | Property | Test Method | Fluoroloy H | Fluoroloy K | Fluoroloy B |
| General | Color | — | Off-White | Tan | Dark Gray |
| Bearing Material | — | No | Yes | Yes | |
| Specific Gravity | D792 | 2.09 g/cc | 2.03 g/cc | 2.04 g/cc | |
| Hardness, Shore D | D2240 | 55 to 60 | 60 | 66-69 | |
| Mechanical | Tensile Strength | D1708 | 1,000 psi | 3,000 psi | 2,000 psi |
| Elongation | D1708 | 4.90% | 230% | 40% (MD), 45 psi (CD) | |
| Compressive Strength (0.2% yield stress) | D695 | — | 1000 psi | 1,700 psi (MD), 1,350 psi (CD) |
|
| Compressive Modulus | D695 | — | 95, 000 psi | 165,000 psi | |
|
Thermal |
Embrittlement Temperature | — | -400 °F | -400 °F | -400 °F |
| Continuous Service Temperature in Air | — | 600 °F | 600 °F | 550 °F | |
| Linear Coefficient of Thermal Expansion ( in/in-°F) | D696 | 8.2x10-5(MD), 4.4x10-5 (CD)2 |
7.05x10-5 (MD), 7.36x10-5 (CD)3 |
8.3x10-5 (MD), 10.8x10-5 (CD)4 |
|
|
Electrical |
Dissipation Factor | D150 | 0.0005 to 0.004 | — | — |
| Dielectric Constant | D150 | 2.33 to 2.70 | — | — |
1. All testing is performed at room temperature unless otherwise specified. Fluoroloy is a registered trademark of Saint-Gobain Performance Plastics Corporation.
2. Temp range: 78° to 392°F
3. Temp range: -42° to 401°F
4. Temp range: 78 to 400°F
Industrial Fluoroloy® Grades
Contact us to find out which grade is right for your application.
Fluoroloy® H
Great for use in RF applications to reduce the size of components and improve their performance.
- Proprietary custom PTFE
- Color: White
- High thermal conductivity
- Low dissipation factor
- Low dielectric constant
Fluoroloy H is an off-white, high-performance filled PTFE product, particularly noted for its exceptional electrical properties. Its thermal conductivity is eight times that of virgin PTFE, making it ideal for applications requiring efficient heat dissipation while preserving dielectric integrity.
Originally developed for UHF radar heat sink applications, Fluoroloy H (also known as Rulon H) is a widely-used alternative to virgin and glass-filled PTFE in the microwave industry. Common uses include standoffs, insulators, thermal gaskets, and other dielectric components where electrical performance is critical.
Fluoroloy® K
Recommended for moderate to high speed dynamic service running against soft metals.
- Proprietary custom PTFE
- Color: Tan
- Superior wear and heat reistance
- Non-abrasive
- high dielectric strength
Fluoroloy K offers excellent wear resistance, making it highly suited for demanding high-temperature environments up to 600°F. It exhibits high dielectric strength, low moisture absorption, and low dissipation, ensuring reliability under harsh conditions.
This material excels in applications requiring wear resistance, dimensional stability, and corrosion resistance, particularly in environments where these properties are critical for long-term performance.
Fluoroloy® B
Ideal for dynamic fluid seals and bearings with superior chemical resistance and abrasive strength.
- Carbon reinforced PTFE
- Color: Dark gray
- Chemical resistant
- Consistent wear in wet and dry applications
Fluoroloy B is recommended for dynamic fluid seals and bearings, particularly in wet environments. Widely applied in compressor rings, cups, rod packings, and wear rings, it is highly resistant to chemical attack, with the exception of highly oxidizing solutions.
While it is conductive and not suitable for applications requiring non-conductive materials, Fluoroloy B maintains consistent wear rates in both wet and dry applications, providing durable and reliable performance in fluid-handling systems.