Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Product Highlight
Parco fluorocarbon seals offer outstanding resistance to aggressive chemicals and high temperatures. Our high-quality fluorocarbon seals have a long history of reliable performance in service temperatures from -40° to +400°F. For superior resistance to chemicals and continuous service temperatures as high as 600°F, consider Parco’s perfluoroelastomer seals. The American Society for Testing Materials (ASTM) document D1418, Standard Practice for Rubber and Rubber Latices—Nomenclature, uses the abbreviation FKM for compounds made from fluorocarbon polymer. Parco offers fluorocarbon compounds to resist a wide range of chemicals and temperatures. The most common type of fluorocarbon polymer contains 66 percent fluorine and is a copolymer of vinylidene fluoride (VF2 or VDF) and hexafluoropropylene (HFP). Other types of fluorocarbon polymer contain tetrafluoroethylene (TFE) for improved chemical resistance. Some types of fluorocarbon polymer contain perfluoromethylvinyl ether (PMVE) for improved flexibility at low temperatures. Standard fluorocarbon polymers are commonly divided into three types: A, B, and F, in order of increasing fluorine content. In general, higher fluorine content provides improved chemical resistance but decreased low-temperature flexibility. Specialty fluorocarbon polymers are also available for applications requiring improved performance in caustic fluids and low temperatures. Specialty fluorocarbons include GLT, GFLT, LTFE, and ETP.1 If you are unfamiliar with the different elastomers used for seals, refer to Parco’s Elastomer Selection Guide. That guide will help you to select the correct elastomer for your application. If you determine that fluorocarbon seals are right for your application, this guide will help you select the correct compound.
- Product Background
Parco’s fluorocarbon seals have a long history of reliable performance in service temperatures from -40° to +400°F. For continuous service temperatures as high as 600°F, consider Parco’s perfluoroelastomer seals.
- Rely on Parco
Parco is a leading manufacturer of highperformance seals. We specialize in developing proprietary elastomeric compounds and bonding techniques. Parco’s seals are available in 340 compounds, more than 25 percent developed in the last five years. Founded in 1941, Parco was the first manufacturer to specialize in O-rings. Our modern 154,000 square-foot facility is one of the largest plants in the world making molded rubber seals. Parco also makes custom-molded elastomeric products, including rubber-to-metal bonded parts. Our quality management system is certified to ISO/TS 16949:2002, AS7115, and AS9100B. Our R & D laboratory is certified to ISO/IEC 17025.
- Key Features
Parco’s fluorocarbon seals are an excellent choice for harsh environments. Key features include the following:
• Excellent resistance to chemicals: Parco fluorocarbon seals resist a broad range of chemicals.
• Wide range of service temperatures: Parco fluorocarbon seals are suitable for applications from -40° to +400°F, depending on the compound.
• UL-Listed : Certain Parco fluorocarbon seals are UL-listed.
• MIL SPEC conforming : Parco offers fluorocarbon seals to meet demanding military and aerospace specifications.
• Color : Certain Parco fluorocarbon seals are brown or blue to prevent errors during assembly and to control after-market sales
Applications & Uses
- Applications
- Cure Method
- Plastics & Elastomers End Uses
- Uses
”Flex-fuel vehicles” can use various blends of gasoline and alcohol as fuel. “Flex fuels” refer to those blends and typically have alcohol content of 15 percent or more. Parco recommends its seals made from F-type polymer for use in flex fuels
Properties
- Color
- Physical Properties
| Value | Units | Test Method / Conditions | |
| Hardness | 78.0 | Shore A | D2240 |
| Tensile Strength | 1750.0 | psi | D412 |
| Ultimate Elongation (pct) | 160.0 | — | D412 |
| Modulus (100 pct, Elongation) | 957.0 | psi | D412 |
| Compression Set 22 hours (200°C, 392°F ) Pct of Original Deflection | 14.0 | — | D395 |
| Heat Aging 70 hours (250°C, 482°F) Hardness Change, pts. | 4.0 | Shore A | D573 |
| Heat Aging 70 hours (250°C, 482°F) Tensile Strength Change, pct. | 2.0 | — | D573 |
| Heat Aging 70 hours (250°C, 482°F) Ultimate Elongation Change, pct. | -16.0 | — | D573 |
| Fluid Aging, Fuel C 70 hours (23°C, 73°F) Hardness Change, pts. | -3.0 | Shore A | D471 |
| Fluid Aging, Fuel C 70 hours (23°C, 73°F) Tensile Strength Change, pct. | -18.0 | — | D471 |
| Fluid Aging, Fuel C 70 hours (23°C, 73°F) Ultimate Elongation Change, pct. | -13.0 | — | D471 |
| Fluid Aging, Fuel C 70 hours (23°C, 73°F) Volume Change, pct. | 4.0 | — | D471 |
| Low Temperature Flexibility TR-10°C (°F) | -16(3) | °C(°F) | D1329 |
Regulatory & Compliance
- Certifications & Compliance