Viton® 9066-75

1 of 4 products in this brand
Viton® 9066-75 is 75-durometer fluorocarbon having excellent resistance to compression set, and improved low-temperature flexibility (TR-10 value of -25°F) and meets the requirements of Aerospace Material Specification (AMS) R 83485.

Polymer Name: Fluoroelastomer (FKM)

Physical Form: O-rings, Seals

Features: Automotive Fluid Resistant, Chemical Resistant, Cost Effective, Gasoline Resistant, General Purpose, High Temperature Resistance, Low Compression Set, Low Temperature Flexibility, Low Temperature Resistant, Steam Resistant, Wide Temperature Operating Range

End Uses: General Purpose, O Rings

Tensile Strength: 16.13638 - 16.13638 MPa

Color: Black

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Technologies

Features & Benefits

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

Characteristics of Fluorocarbon Types

Below is a brief description of the various types of fluorocarbon polymer. Figure 1 compares the resistance to common fluids among the fluorocarbon types. Low temperature resistance also varies based on the fluorocarbon type, as shown in Figure 2.

Standard Fluorocarbons

Standard fluorocarbon compounds typically use a bisphenol cure system, which provides fast cure cycles and improved resistance to compression set. Some standard fluorocarbons use a peroxide cure system to improve resistance to steam, acid, and aggressive automotive lubricating oils.

A-Type fluorocarbons or dipolymers, are used for general-purpose sealing. A-Type offers the best resistance to compression set among all fluorocarbons. A-Type is not recommended for use in amines, low molecular weight carbonyls, or flex fuels. (Fluorine content of polymer is about 66%)

B-Type fluorocarbons offer better chemical resistance than A-Type. B-Type has improved resistance to aromatic hydrocarbons and automotive fuels containing alcohols and ethers such as methyl tertiary butyl ether (MTBE). (Fluorine content of polymer is about 68%)

F-Type fluorocarbons provide excellent resistance to flex fuels. F-Type has the best fluid resistance of all the standard fluorocarbons. (Fluorine content of polymer is about 70%)

Specialty Fluorocarbons

Specialty fluorocarbon polymers use a peroxide cure system for improved resistance to steam and acid. Specialty fluorocarbons generally have better low-temperature flexibility than standard fluorocarbons. Specialty fluorocarbon polymers GLT, GFLT, and ETP are Genuine Viton®.

GLT fluorocarbons offer excellent lowtemperature flexibility and fluid resistance similar to A-Type. Compounds using GLT typically have a temperature retraction value (TR-10) of -22°F. (Fluorine content of polymer is about 64%)

GFLT fluorocarbons combine excellent low-temperature flexibility and fluid resistance similar to F-Type. Compounds using GFLT typically have a TR-10 value of -11°F. (Fluorine content of polymer is about 67%)

LTFE fluorocarbons have the best lowtemperature flexibility of any fluorocarbon and fluid resistance similar to GFLT. Compounds using LTFE typically have a TR-10 value of -40°F. (Fluorine content of polymer is about 67%)

ETP fluorocarbons were developed as a cost-effective alternative to perfluoroelastomers. ETP fluorocarbons offer similar reliable service in aggressive chemicals, but at a fraction of the cost. ETP fluorocarbons also have excellent resistance to low molecular weight carbonyls, amines, and caustic bases. (Fluorine content of polymer is about 67%)

Viton® 9066-75 - Characteristics of Fluorocarbon Types

1.Compounds are listed in this brochure by compound number.
2.Last two digits of compound number identify hardness (durometer, Shore A).
3.Military Specification MIL R 83248 has the full title Rubber, Fluorocarbon Elastomer, High Temperature, Fluid, and Compression Set Resistance

Applications & Uses

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

Chemical Resistance
Color
Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Hardness75.0Shore AD2240
Tensile Strength2342.0psiD412
Ultimate Elongation (pct)184.0D412
Modulus (100 pct, Elongation)1270.0psiD412
Compression Set 22 hours (200°C, 392°F ) Pct of Original Deflection12.0D395
Heat Aging 70 hours (250°C, 482°F) Hardness Change, pts.0.0Shore AD573
Heat Aging 70 hours (250°C, 482°F) Tensile Strength Change, pct.-14.0D573
Heat Aging 70 hours (250°C, 482°F) Ultimate Elongation Change, pct.-27.0D573
Fluid Aging, Fuel C 70 hours (23°C, 73°F) Hardness Change, pts.-2.0Shore AD471
Fluid Aging, Fuel C 70 hours (23°C, 73°F) Tensile Strength Change, pct.-23.0D471
Fluid Aging, Fuel C 70 hours (23°C, 73°F) Ultimate Elongation Change, pct.-15.0D471
Fluid Aging, Fuel C 70 hours (23°C, 73°F) Volume Change, pct.4.0D471
Low Temperature Flexibility TR-10°C (°F)-32(-25)°C(°F)D1329

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Technical Details

Viton® 9066-75 - Technical Details

Parco’s fluorocarbon seals provide excellent resistance to a wide range of chemicals and temperatures. This selection diagram will help you choose among Parco’s popular fluorocarbon compounds. Parco also offers more than 40 fluorocarbon compounds not shown in this diagram. If we don’t have a compound for your application, we can develop one for you.