Savvy manufactures FEPM / AFLAS® O-rings in China with superior quality and competitive price
- Payment Way: T/T, Western Union, Paypal
- Incoterm: EXW, FOB, CIF
- Shipping Way: By Air or Sea
- Manufacturer Place: Ningbo, China
- Delivery Time: 7 - 30 days
- Factory Status: Stocked for Sale
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Description
AFLAS® O-Rings, also known as FEPM or TFE/P O-Rings, are high-performance O-shaped sealing rings made from tetrafluoroethylene propylene copolymer. They offer exceptional resistance to aggressive chemicals, high temperatures, and steam, outperforming standard FKM (Viton®) in alkaline, amine, and hot-water environments, although their typical minimum operating temperature is only -20°C.
AFLAS® is the registered global brand for FEPM products, exclusively developed, manufactured, and marketed by AGC Inc. (formerly Asahi Glass Co., Ltd.) in Japan. Originally launched in 1975 as the world’s first alternating copolymer of tetrafluoroethylene and propylene, AFLAS® includes key grades such as 100S, 150P, 150E, 200P, 300S, and 600X for high-performance sealing applications.
Specifications
- Material: AFLAS® (FEPM / TFE/P, Tetrafluoroethylene‑Propylene Copolymer)
- Temperature Range / Rating: -20°C (-4°F) to 230°C (446°F)
- Low Operating Temperature Limit: -20 °C (-4 °F)
- Maximum Operating Temperature Limit: 230°C (446 °F)
- Durometer Hardness Range: Shore A 50-90
- Standard Durometer Hardness: Shore A 70
- Less Used Duro Hardness: Shore A 50, 60, 80
- Color: Black or Blue (standard), custom color is available
- Outline: Circle (standard), square, rectangular, custom
- Cross Section Profile: Round (standard), square, X, D, T, custom
- Cross Section Width (CS): 0.5 to 20 mm (0.020 to 0.787 inch)
- Inside Diameter (ID): 0.7 to 2965 mm (0.028 to 116.732 inch)
- Standard Size: AS 568, BS 1806, ISO 3601, DIN 3771, JIS B 2401
- Shelf Life: Up to 20 years
- Compliance: RoHS, REACH, FDA (available upon request)
- Price Level: Higher than FKM, lower than FFKM
Performance Characteristics
The table below summarises the typical performance of standard AFLAS® (FEPM / TFE/P) rubber across key environmental resistance, chemical compatibility, and mechanical attributes. Ratings are based on industry-standard evaluations: Excellent (recommended), Good (suitable with limitations), Fair (limited use), and Poor (not recommended).
Excellent
- Ozone
- Weather
- Chemicals
- Oils
- Water
- Acid
- Alkali
- Steam
- Flame
- Compression Set
Good
- Abrasion
- Tensile Strength
Fair
- N/A
Poor
- N/A
Material Data Sheet
The following table presents the physical properties and fluid resistance performance of our standard AFLAS® (FEPM / TFE/P) O-ring material, formulated to meet ASTM D2000 M2HK710 specifications. All test results are based on cured compounds tested per the indicated ASTM methods, including heat ageing, compression set, and exposure to fluid and steam.
This is the Material Data Sheet (MDS) for our standard 75 Shore A AFLAS® (FEPM / TFE/P) compound. Savvy Rubber also offers and routinely tests 50, 60, 80, and 90 Shore A AFLAS® (FEPM / TFE/P) formulations. If you require data for other hardness grades, please contact our sales team.
| AFLAS® (FEPM / TFE/P) Shore A 75 Material Data Sheet | |||
|---|---|---|---|
| Test Standard: ASTM D2000 M2HK710 A16 B37 E12 Z1 F12 | |||
| ORIGINAL PHYSICAL PROPERTIES | TEST METHOD | REQUIREMENTS | TEST RESULTS |
| Hardness Shore A | D2240 | 75±5 | 78 |
| Tensile Strength, MPa (psi) | D412 | 10 (1450) min. | 14.9 (2161) |
| Ultimate Elongation, % | 150 min. | 194 | |
| Specific Gravity (g/cm³) | D792 | — | 1.55 |
| HEAT RESISTANCE 70H AT 200°C (A16) | TEST METHOD | REQUIREMENTS | TEST RESULTS |
| Hardness Change, Points | D573 | -15 to +15 | +4 |
| Tensile Strength Change, % | -45 max. | -30 | |
| Ultimate Elongation Change, % | -45 max. | -18 | |
| COMPRESSION SET, 22H AT 175°C (B37) | TEST METHOD | REQUIREMENTS | TEST RESULTS |
| Permanent Set, % | D395 | 25 max. | 22 |
| FLUID RESISTANCE, NO. 1 OIL (IRM 901), 70H AT 100°C (E12) | TEST METHOD | REQUIREMENTS | TEST RESULTS |
| Hardness Change, Points | D471 | -10 to +10 | -2 |
| Tensile Strength Change, % | -30 max. | -15 | |
| Ultimate Elongation Change, % | -30 max. | -12 | |
| Volume Change, % | -5 to +5 | +4 | |
| FLUID RESISTANCE, SATURATED STEAM, 70H AT 230°C (Z1) | TEST METHOD | REQUIREMENTS | TEST RESULTS |
| Hardness Change, Points | D471 | -15 to +15 | +5 |
| Volume Change, % | +15 max. | +3 | |
| Visual Inspection | No Blistering | PASS | |
| LOW TEMPERATURE RESISTANCE (F12) | TEST METHOD | REQUIREMENTS | TEST RESULTS |
| Non-brittle after 3 Min at -10°C | D2137 | PASS | PASS |
Test results are typical values for Savvy Rubber standard Shore A 75 AFLAS® (FEPM / TFE/P) compound. Actual performance may vary based on operating conditions, fluid concentration, and exposure time. For critical applications, we recommend sample testing.
Features
FEPM / AFLAS® O-rings deliver superior chemical resistance, especially to alkalis, amines, and hot steam, significantly outperforming standard FKM in these environments. With continuous service up to 230°C (446°F) and excellent ozone and UV weatherability, they perform reliably in harsh conditions. Compatible with fuels, oils, and brake fluids, AFLAS® also offers reliable electrical insulation and low gas permeability, balancing strength and compression set for diverse sealing needs.
Applications
FEPM / AFLAS® O-rings are the top choice for harsh environments where standard FKM underperforms. Key applications include geothermal and oil & gas drilling (resisting steam and sour gas), chemical processing (handling strong alkalis), and automotive systems (coolants and brake fluids). They also serve critical roles in nuclear, semiconductor, and food industries due to their high purity and electrical insulation. Beyond O-rings, AFLAS® (FEPM / TFE/P) material is widely molded into gaskets, diaphragms, hoses, and wire insulation for diverse custom sealing needs.
