SealSpec / Custom gaskets / Solid EPDM

Solid EPDM rubber gaskets

Custom-cut solid epdm rubber gaskets (EPDM): where it works, where it fails, typical properties, and how to call it out on a drawing. Use the builder to spec your part in this material.

Typical properties

Polymer	EPDM
Form	solid
Service temperature	-40 to 275 °F
Firmness	40–90 Shore A
Common thicknesses (in)	.031, .062, .093, .125, .187, .250

Typical ranges for the material family. Specific grades differ: confirm on the datasheet.

Custom solid epdm rubber gasket example drawing with bolt holes — Example custom gasket outline

Strengths

Water, steam, glycol and brake-fluid resistance
Excellent outdoor aging
Economical

Watch out for

Swells badly in petroleum oils and fuels

Typical applications

Water and HVAC systems
Outdoor equipment
Potable water (with certified grades)

Specs and standards to reference

ASTM D2000 AA/BA callouts
NSF/ANSI 61 grades exist

Chemical check: see EPDM ratings across 2,088 fluids →

Other materials

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