The Buswell Manufacturing Company Flat gaskets, seals, and washers for the automotive, bearing, instrument, marine, and other commercial industries.
 

General Materials Chart

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Material Temp. Range
(° F)
Chemical
Resistance
(Oils)
Weather Resistance Electrical Resistance Other Attribute(s)
Buna

-40 to 200

Excellent

Poor

Poor

Excellent resistance to grease mineral and vegetable oils

Neoprene

-40 to 220

Good

Very Good

Very Good

Low cost with excellent abrasion resistance

Viton™

-20 to 450

Excellent

Very Good

Good

Excellent in fuel environments

Silicone

-20 to 450

Fair

Excellent

Good

Excellent weather & chemical resistance at high & low temperatures

Fluorosilicone

-65 to 400

Excellent

Excellent

Good

Excellent in fuel environments

EPDM

-40 to 225

Poor

Very Good

Excellent

Excellent chemical and water resistance

Nylon

-40 to 185

Good

Limited — not UV resistant

Poor

Excellent mechanical properties

LDPE
(Low Density Polyethylene)

-180 to 110

Limited to short term use

Poor — not UV resistant

Excellent

Low cost, Poor tensile strength, Excellent for wet applications

HDPE
(High Density Polyethylene)

-180 to 160

Good

Poor — not UV resistant

Fair

Higher tensile and more rigid than low density polyethylene

Polypropylene

32 to 210

Good

Poor — not UV resistant

Excellent

Low cost, Good tensile strength

Teflon™

-350 to 500

Excellent

Excellent

Excellent

Good impact strength, Poor tensile strength

Kapton™

-400 to 700

Excellent

Poor

Excellent

Excellent tensile strength. Will not melt or burn. No known organic solvents.

Santoprene -50 to 275 Good Excellent Excellent Good oil, solvent & chemical resistance. Weathers well

Foam Rubber
(Open and Closed Cell)

Use for sealing and vibration absorption. Polymers include nitrile, neoprene, EPDM, silicone and epichlorohydrin. Formulations to meet a wide range of temperatures and requirements. Thickness from 1/16" to 2".

Coated Fabrics

Polyester, nylon, glass and nomex fabrics can be coated with buna, neoprene, Viton™ , silicone, fluorosilicone rubber and Teflon™ for special applications.

Felt

Used for vibration damping, filtering liquids, insulation and sealing. Made with wool and or combinations of synthetic fibers to fit many uses. Thickness from 1/16" to 1".


* Most rubber compounds can be formulated to meet specific requirements. The above information is provided as a guide only and should not be used to set specification requirements. Buswell uses materials from various manufacturers and assumes no liability for their use in a specific application. To determine a materials suitability, it should be tested in the intended application.