Natural Rubber Gaskets

Pure Gum Rubber Gaskets Provide Superior Resilience at Lower Temperatures

Natural (gum) rubber is a highly elastic material which possesses incredible resilience, good molding properties and compression set, good tensile strength and high resistance to tear and abrasions. Originally derived from the sap of tropical rubber trees, natural rubber is soft and displays good flexing qualities at low temperatures.

Natural rubber is available in a wide variety of grades, thicknesses and hardness levels. The standard thickness ranges from 1/64” up to 2” thick. Kelcut Gasket and Rubber can provide your industry with a custom cut gasket at any thickness or hardness level you need.

Die Cut Manufacturing

Natural Rubber Provides Excellent Electrical Insulation Properties

In electrical applications and low temperature settings, natural rubber possesses excellent characteristics, making pure gum gaskets popular for use in the automotive industry. Since the natural rubber can withstand low temperatures (-67 degrees F to +122 degrees F) it easily bonds to metal parts with high tear and abrasion resistance.  

However, natural rubber does not perform well when exposed to chemicals and petroleum based products. Natural rubber is excellent for use in electrical projects; however, it has poor heat aging properties and is not resistant to sunlight, ozone and solvents.

  Pure Gum Gasket Material Specifications
Material Natural Isoprene
Temperature Range -40° to 176° F
Tensile Strength In the 3400 PSI range
Resistant To: Alcohols, acids, moderate chemicals, aldehyds and ketones
Affected By: Strong acids, fat, grease, oil, hydrocarbons and ozone

*Values vary by grade*

Dependable Natural Rubber Gaskets from Kelcut

Kelcut has been producing reliable, quality gaskets for a wide variety of industries for over 25 years. We provide custom die cut gasket manufacturing services and prototyping services for every industry.

We understand a properly functioning gasket is an integral part of any industrial facility to keep production lines and engines running smoothly and efficiently.

Contact the natural rubber gasket professionals at Kelcut for superior die-cutting and custom component manufacturing.