50 Durometer 12″ x 12″ Molded Fluorosilicone Rubber Sheet 0.062 thick


Military Specification Grade
Hardness — Shore A
Normal Available Color — Blue

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Safety Data Sheet

Fluorosilicone rubber sheets are available to MIL-R-25988 as well as other fluid resistant specifications. They are not recommended for exposure to brake fluids, hydrazine, or ketones.

Fluorosilicone has better fuel and oil resistance than other silicone elastomers but maintains silicone’s high temperature advantage. Featuring good compression set and resilience properties, fluorosilicone compounds are suitable for exposure to air, sunlight, ozone, chlorinated and aromatic hydrocarbons.

In applications where contact with jet fuel, solvents, gasoline, or crude oil is required, this elastomer is serviceable over a temperature range of -60°C to 177°C (-76°F to 350°F). In dry heat, the serviceable temperature range is extended up to 232°C (450°F).

Physical properties—including tensile strength, elongation, and tear resistance—are comparable to those of general purpose silicone rubber compounds.

Fluorosilicone is used in applications where normal silicone would degrade by harsh chemicals or fluids and is used where extreme conditions exist. The material is most often used in aerospace applications for systems requiring fuel and/or diester-based lubricant resistance up to 400°F. Although this elastomer is usually specified for aerospace use due to its excellent fuel resistance and high temperature stability, fluorosilicone is becoming an increasingly popular material for a broader range of sealing applications.

Fluorosilicone elastomers are generally not recommended for dynamic sealing due to limited physical strength, poor abrasion resistance, and high friction characteristics. They are predominately designed for static sealing use.

Some typical resistance values are listed below. Values for other fluids are available upon request.

Immersion MediumImmersion ConditionsHardness Change, PointsTensile Strength Change, %Elongation Change, %Volume Change, %
ASTM #1 oil3 Days / 302ºF-5Nil-5Nil
ASTM Ref. Fuel B3 Days / 302ºF-20-60-3530
SAE 10w-30w Motor Oil30 Days / 350ºF-9-76-803
Gasoline, Regular/Low Lead24 Hrs / 77ºF-12-39-3021
Jet Fuel JP-43 Days / 350ºF-25-65-2025
Turbo Oil #353 Days / 302ºF-10-302510
Mineral Spirits30 Days / 75ºFNilNilNilNil
Trichloroethylene5 Days / 120ºF-10NilNil20
Hydraulic Fluid, Type A3 Days / 302ºF-5-10-55

Additional information

Dimensions 12 × 12 × 0.062 in
Quantity Discount

1-4 Sheets, 5-9 Sheets, 10-24 Sheets, 25-49 Sheets, 50-74 Sheets, 75-99 Sheets