Rubber Gaskets & Seals

Hennig Gasket & Seals manufactures custom rubber gaskets and seals for a wide range of industries across the country.  No matter if your project calls for a single prototype or large production runs; no matter if the rubber gasket is simple or complex in design, we are committed to our promise of providing our customers with rubber gaskets that have been accurately cut to the tightest tolerance and delivered with the quickest turnaround in the industry .  That has been our promise for over 90 years.

Hennig Gasket & Seals will custom manufacture your rubber gasket or seal from provided prints or will reverse engineer a sample part for all critical dimensions.  Our proven manufacturing techniques will deliver on-time, on-budget parts that are precision engineered to your exact specifications.   Guaranteed.

We fabricate a variety of types of rubber gaskets and seals including:

Rubber Gasket & Seal Manufacturing Process

Hennig Gasket & Seals continues to invest in technology and expands both in capacity and capabilities.  Our in-house manufacturing services include water jet cutting (tight tolerance +/- .007), flash cutting, die cutting and hand cutting.

Rubber Gasket & Seal Material

There are a number of factors that help determine which material is the best selection for your application. It is not easy and can be very confusing trying to select the material best suited for your application.  You can refer to our " Rubber Sheet Cheat Sheet" as a reference, but we encourage you to take advantage of our knowledge and experience to assist in the proper selection.  We stock the following rubber gasket material (both sheets and rolls).  Our experienced staff can assist in your selection.
 
Buna-N Nitrile
Composition: Nitrile-butadiene
General Properties: Excellent resistance to petroleum based fluids.  Good physical properties.
Resistent to: Many hydrocarbons, fats, oils, greases, hydraulic fluids, chemicals
Attacked by: Ozone (except PVC blends), ketones, esters, aldehydes, chlorinated and nitro hydrocarbons
 
Cloth Inserted Rubber
Composition:  Neoprene or SBR
General Properties:  Excellent physical properties
Temperature Range:  Neoprene -20°F to +180°F; SBR -20°F to +170°F
 
Diaphragm
 
EPDM
Composition: Ethylene-propylene-diene
General Properties:  Excellent ozone, chemical and aging resistance.  Poor resistance to petroleum based fluids.
Resistent to: Animal and vegetable oils, ozone, strong and oxidizing chemicals.
Attacked by: Mineral oils and solvents, aromatic hydrocarbons
 
Gum Rubber
Composition: Isoprene, natural
General Properties: Excellent physical properties including abrasion and low temperature resistance.  Poor resistance to petroleum based fluids.
Resistent to: Most moderate chemicals, wet or dry, organic acids, alcohols, ketones, aldehydes
Attacked by: Ozone, strong acids, fats, oils, greases, most hydrocarbons
 
Hypalon ®
Composition: Chloro-sulfonyl-polyethylene
General Properties: Excellent ozone, weathering, and acid resistance.  Good abrasion and heat resistance.  Fair resistane to petroleum based fluids
Resistent to: Similar to Neoprene with improved acid resistance
Attacked by: Concentrated oxidizing acids, esters, ketones, chlorinated, aromatic, and nitro hydrocarbons
 
Neoprene
Composition: Chloroprene
General Properties: Good weathering resistance. Flame retarding.  Moderate resistance to petroleum based fluids
Resistant to: Moderate chemicals and acids, ozone, oils, fats, grease, many oils, and solvents
Attacked by: Ozone, strong acids, fats, oils, greases, most hydrocarbons
 
Polyurethane
Composition: Polyurethane diisocyanate
General Properties: Good elongation and high tensile strength at high durometer readings.  Excellent abrasions and tear strength
Resistant to: Ozone, oxygen
 
SBR (Red Rubber)
Composition: Styrene-butadiene
General Properties: Good physical properties and abrasion resistance.  Poor resistance to petroleum based fluids
Resistent to: Most moderate chemicals, wet or dry, organic acids, alcohols, ketones, aldehydes
Attacked by: Ozone, strong acids, fats, oils greases, most hydrocarbons
 
Silicone
Composition: Polysiloxane
General Properties: Excellent high and low temperature properties.  Fair physical properties.
Resistent to: Moderate or oxidizing chemicals, ozone, concentrated socium hydroxide
Attacked by: Many solvents, oils, concentrated acids, dilute sodium hydroxide
 
Viton®
Composition: Fluorinated hydrocarbon
General Properties: High resistance to solvents, acids, base fuels, oils and hydraulic fluids.  Unusual performance at elevated temperatures.  Good tensile strength, resilience, low compression set, low temperature range is approximately -60°F
Resistent to: Weathering, ozone, oxygen and flame

The experienced team at Hennig Gasket can assist you with all your custom rubber gaskets and seals needs – contact us today to experience our fast service. Or, request a quote today!