Industrial Gaskets & Shims

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gasketsDenver Rubber Company is a leading manufacturer of custom industrial non-metallic gaskets. Fabricating gaskets since 1972, our knowledge and expertise makes us the best source for industrial sheet and gasket materials. Our gasket division carries a wide variety of quality materials from paper to plastic, MIL-Spec rubber to commercial grade rubber and compressed gasket sheeting to fibrous material. Die-cut gaskets are one of our specialties.

Development & Design For Industrial Applications

Our design experts will assist you in selecting the appropriate material for your gasket applications. They base their recommendations on your needs and specifications to accommodate the appropriate temperature, chemical, vibration, abrasion and movement requirements for your application.

We offer the following rubber & gasket materials:

  • Diaphragm rubber
  • Nickel graphite
  • SBR
  • Buna-N (Nitrile)
  • Urethane
  • Neoprene
  • Pure gum rubber
  • Non-asbestos sheeting
  • Butyl
  • Red rubber
  • Liner paper
  • EPDM
  • Silicone
  • Viton
  • Hypalon
  • Corrugated matting
  • Skirt rubber
  • Cloth inserted Packing
  • Smoke and flame rubber
  • Natural rubber
  • Snow plow blades
  • DuraShield
  • Mil-Spec rubber
  • PVC belting
  • White FDA elastomerics
  • Santoprene®

DRC has the experience to assist with your gasket design, fabrication and inventory management needs. Our outstanding reputation for reliability has allowed us to maintain an extensive vendor list, giving us access to virtually any non-metallic material.

The DRC gasket division is located in our 17,000 square foot facility and is equipped to accommodate all types of needs, from high volume industrial size orders to smaller specialized jobs. The division is also capable of designing and manufacturing industrial gaskets to custom specifications using our innovative capabilities.

Committed to excellence, we strive to provide quality customer service. We value your deadlines and can assure you that your orders are shipped on time. DRC continues to implement the latest technology in the design and manufacturing of our custom gaskets.

SBR Rubber Sheets

Styrene-butadiene (SBR) describe families of synthetic rubbers derived from styrene and butadiene. These materials have good abrasion resistance and good aging stability when protected by additives. About 50% of car tires are made from various types of SBR. The styrene/butadiene ratio influences the properties of the polymer: with high styrene content, the rubbers are harder and less rubbery. SBR is not to be confused with a thermoplastic elastomer made from the same monomers, styrene-butadiene block copolymer.

General Information

Common Name: SBR, Buna-S
Chemical Name: Styrene-butadiene

Generally Resistant To: Abrasion, Water, Moderate, Chemicals, Organic Acids, Alcohols, Ketones and Aldehydes
Generally Attacked By: Ozone, Sunlight, Strong Acids, Fats, Oils, Open Flame, Grease and Most Hydrocarbons

ASTM D 2000 / SAE J200 Classification: AA, BA
MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification: RS
ASTM D-1418 Designation: SBR

Physical Properties

Elongation: 450% to 600%
Hardness Range (Durometer Shore A): 40 to 90

Mechanical Properties

Compression Set: Good
Rebound Rating: Poor to Excellent
Flex Cracking Resistance: Good
Abrasion Resistance: Excellent
Tear Resistance: Fair to Good
Impact Resistance: Excellent
Flame Resistance: Poor

Thermal Properties

Minimum Service Temperature:  -70°F
Maximum Service Temperature: +220°F

Environmental Resistance

Recommended Shelf Life: 3 to 5 years
Weather Resistance: Fair to Good
Sunlight Resistance: Poor
Ozone Resistance: Poor
Oxidization Resistance: Fair to Excellent

Water Resistance: Very Good
Steam Resistance: Fair to Good
Gas Permeability: Fair
Radiation Resistance: Good, 3 x 105 Ga Gy
Poor, 2 x 106 Ga Gy

Chemical Resistance

Acetone: Minor to Moderate Effect
Ammonium Hydroxide: NOT RECOMMENDED
Animal Fats: NOT RECOMMENDED
Carbon Dioxide: Minor to Moderate Effect

Chlorine: DRY: NOT RECOMMENDED
WET: NOT RECOMMENDED
Fluorine (Liquid): – – –
Fuel Oil: NOT RECOMMENDED
Gasoline: NOT RECOMMENDED
Hydrochloric Acid 37%: HOT: NOT RECOMMENDED
COLD: Minor to Moderate Effect
Hydrochloric Acid Concentrate 37%: HOT: NOT RECOMMENDED
COLD: NOT RECOMMENDED
Kerosene: NOT RECOMMENDED
Methyl Ethyl Ketone: NOT RECOMMENDED
Mineral Oil: NOT RECOMMENDED
Natural Gas: Moderate to Severe Effect
Naptha: NOT RECOMMENDED
Natural Gas: Moderate to Severe Effect
Nitric Acid: Concentrate: NOT RECOMMENDED
Dillute: NOT RECOMMENDED
Red Fuming: NOT RECOMMENDED
Petroleum: Below 250: NOT RECOMMENDED
Above 250: NOT RECOMMENDED
Phosphoric Acid: 20%: Moderate to Severe Effect
45%: NOT RECOMMENDED
Propane: NOT RECOMMENDED
Salt Water: RECOMMENDED: Little or Minor Effect
Skydrol: Skydrol 500: NOT RECOMMENDED
Skydrol 7000: NOT RECOMMENDED
Sodium Hydroxide: Little or Minor Effect
Sulfuric Acid: Concentrate: NOT RECOMMENDED
Dillute: Moderate to Severe Effect

                                  20% Oleum: NOT RECOMMENDED
Toluene: NOT RECOMMENDED
Transformer Oil: NOT RECOMMENDED
Vegetable Oils: NOT RECOMMENDED
Vinegar: Minor to Moderate Effect

Contact us for Complete Chemical Resistance Information

Recommended Storage Conditions
•Store in a cool, dry place with temperature below 75°F.
•Keep away from direct heat or open flames.
•Avoid contact with solvents or other fluids.
•Do not store in direct sunlight.
•Keep products wrapped or sealed to minimize the absorption of moisture.
•Store in a relaxed condition free from tension, compression or other deformation.

Nitrile (Buna-N)

Leading the custom gasket manufacturing industry, Denver Rubber Company carries nitrile materials to provide flexible solutions for variety of fabrication projects.  We stock an extensive inventory of nitrile materials for all of your applications.

Nitrile, also known as Buna-N, acrylonitrile butadiene rubber, and NBR, is a synthetic rubber copolymer of acrylonitrile (ACN) and butadiene. Although its physical and chemical properties vary depending on the polymer’s composition of nitrile, this form of synthetic rubber is unusual in being generally resistant to oil, fuel, and other chemicals. It is used in the automotive and aeronautical industry to make fuel and oil handling hoses, seals, gaskets and grommets. Nitrile’s ability to withstand a range of temperatures from ?40 to 226 °F makes it an ideal material for applications requiring a wide temperature range. Nitrile rubber is generally resistant to aliphatic hydrocarbons. Nitrile, like natural rubber, can be attacked by ozone, ketones, esters and aldehydes.

General Information

Common Name: Nitrile, Buna-N, NBR
Chemical Name: Acrylonitrile-butadiene

Generally Resistant To: Gases, Aliphatic Hydrocarbon, Oils and Fuels
Generally Attacked By: Ketones, Ozone, Sunlight, Aromatic Oil, Flame, Weather

ASTM D 2000 / SAE J200 Classification: BF, BG, BK, CH
MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification: SB
ASTM D-1418 Designation: NBR

Physical Properties

Elongation: 400% to 600%
Hardness Range (Durometer Shore A): 35 to 90

Mechanical Properties

Compression Set: Good
Rebound Rating: Good
Flex Cracking Resistance: Good
Abrasion Resistance: Good to Excellent
Tear Resistance: Good
Impact Resistance: Fair to Good
Flame Resistance: Poor

Thermal Properties

Minimum Service Temperature: -30°F to -70°F
Maximum Service Temperature: +220°F to +280°F

Environmental Resistance

Recommended Shelf Life: 5 to 10 years
Weather Resistance: Poor
Sunlight Resistance: Poor
Ozone Resistance: Poor
Oxidization Resistance: Good
Water Resistance: Good toExcellent
Steam Resistance: Fair
Gas Permeability: Fair to Good
Radiation Resistance: Good, 1 x 105 Ga Gy
Fair, 6 x 105 Ga Gy

Chemical Resistance

Acetone: NOT RECOMMENDED
Ammonium Hydroxide: NOT RECOMMENDED
Animal Fats: RECOMMENDED: Little or Minor Effect
Carbon Dioxide: RECOMMENDED: Little or Minor Effect

Chlorine: DRY: —
WET: —
Fluorine (Liquid): – – –
Fuel Oil: RECOMMENDED: Little or Minor Effect
Gasoline: RECOMMENDED: Little or Minor Effect
Hydrochloric Acid 37%: HOT: NOT RECOMMENDED
COLD: Minor to Moderate Effect
Hydrochloric Acid Concentrate 37%: HOT: NOT RECOMMENDED
COLD: NOT RECOMMENDED
Kerosene: RECOMMENDED: Little or Minor Effect
Methyl Ethyl Ketone: NOT RECOMMENDED
Mineral Oil: RECOMMENDED: Little or Minor Effect
Naptha: Moderate to Severe Effect
Natural Gas: RECOMMENDED: Little or Minor Effect
Nitric Acid: Concentrate: NOT RECOMMENDED
Dillute: NOT RECOMMENDED
Red Fuming: NOT RECOMMENDED
Petroleum: Below 250: RECOMMENDED: Little or Minor Effect
Above 250: Moderate to Severe Effect
Phosphoric Acid: 20%: Minor to Moderate Effect
45%: NOT RECOMMENDED
Propane: RECOMMENDED: Little or Minor Effect
Salt Water: RECOMMENDED: Little or Minor Effect
Skydrol: Skydrol 500: NOT RECOMMENDED
Skydrol 7000: NOT RECOMMENDED
Sodium Hydroxide: Minor to Moderate Effect
Sulfuric Acid: Concentrate: NOT RECOMMENDED
Dillute: NOT RECOMMENDED
20% Oleum: NOT RECOMMENDED
Toluene: NOT RECOMMENDED
Transformer Oil: RECOMMENDED: Little or Minor Effect
Vegetable Oils: RECOMMENDED: Little or Minor Effect
Vinegar: Minor to Moderate Effect

Contact us for Complete Chemical Resistance Information

Recommended Storage Conditions
•Store in a cool, dry place with temperature below 75°F.
•Keep away from direct heat or open flames.
•Avoid contact with solvents or other fluids.
•Do not store in direct sunlight.
•Keep products wrapped or sealed to minimize the absorption of moisture.
•Store in a relaxed condition free from tension, compression or other deformation.

Natural Gum Rubber

Natural Rubber (NR) is known by many different names, Isoprene, Polyisoprene, and is commonly called Gum Rubber. It has many advantages such as high tensile strength, superior resistance to tearing and abrasion, and excellent rebound elasticity. It has good flexibility at low temperatures but has poor resistance to heat, ozone and sunlight. It has excellent adhesion characteristics to fabrics and metals but very little resistance to oils, gasoline and hydrocarbon solvents.

General Information

Common Name: Natural Rubber, Gum Rubber
Chemical Name: Polyisoprene

Generally Resistant To: Abrasion, Flex-Cracking, Impact, Water, and Staining
Generally Attacked By: Solvents, Flame, Weather, Ozone, and Sunlight

ASTM D 2000 / SAE J200 Classification: AA
MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification: RN
ASTM D-1418 Designation: NR

Physical Properties

Elongation: 500% to 900%
Hardness Range (Durometer Shore A): 30 to 85

Mechanical Properties

Compression Set: Excellent
Rebound Rating: Excellent
Flex Cracking Resistance: Excellent
Abrasion Resistance: Excellent
Tear Resistance: Very Good
Impact Resistance: Excellent
Flame Resistance: Poor

Thermal Properties

Minimum Service Temperature: -70°F
Maximum Service Temperature: +180°F

Environmental Resistance

Recommended Shelf Life: 3 years
Weather Resistance: Poor to Fair
Sunlight Resistance: Poor
Ozone Resistance: Poor
Oxidization Resistance: Good
Water Resistance: Very Good
Steam Resistance: Fair to Good
Gas Permeability: Fair to Good
Radiation Resistance: Fair to Good

Chemical Resistance

Acetone: Minor to Moderate Effect
Ammonium Hydroxide: Recommended: Little to Minor Effect
Animal Fats: Minor to Moderate Effect
Carbon Dioxide: Minor to Moderate Effect
Chlorine: DRY: Moderate to Severe Effect
WET: NOT RECOMMENDED
Fluorine (Liquid): – – –
Fuel Oil: Minor to Moderate Effect
Gasoline: Minor to Moderate Effect
Hydrochloric Acid 37%: HOT: NOT RECOMMENDED
COLD: Minor to Moderate Effect
Hydrochloric Acid Concentrate 37%: HOT: NOT RECOMMENDED
COLD: Minor to Moderate Effect
Kerosene: Moderate to Severe Effect
Methyl Ethyl Ketone: NOT RECOMMENDED
Mineral Oil: Minor to Moderate Effect
Naptha: Moderate to Severe Effect
Natural Gas: RECOMMENDED: Little or Minor Effect
Nitric Acid: Concentrate: Moderate to Severe Effect
Dillute: RECOMMENDED: Little or Minor Effect
Red Fuming: Minor to Moderate Effect
Petroleum: Below 250: Minor to Moderate Effect
Above 250: NOT RECOMMENDED
Phosphoric Acid: 20%: Minor to Moderate Effect
45%: Minor to Moderate Effect
Propane: NOT RECOMMENDED
Salt Water: RECOMMENDED: Little or Minor Effect
Skydrol: Skydrol 500: NOT RECOMMENDED
Skydrol 7000: NOT RECOMMENDED
Sodium Hydroxide: RECOMMENDED: Little or Minor Effect
Sulfuric Acid: Concentrate: NOT RECOMMENDED
Dillute: Minor to Moderate Effect
20% Oleum: NOT RECOMMENDED
Toluene: NOT RECOMMENDED
Transformer Oil: Minor to Moderate Effect
Vegetable Oils: Minor to Moderate Effect
Vinegar: RECOMMENDED: Little or Minor Effect

Contact us for Complete Chemical Resistance Information

Recommended Storage Conditions
•Store in a cool, dry place with temperature below 75°F.
•Keep away from direct heat or open flames.
•Avoid contact with solvents or other fluids.
•Do not store in direct sunlight.
•Keep products wrapped or sealed to minimize the absorption of moisture.
•Store in a relaxed condition free from tension, compression or other deformation.

Viton

Maintaining an extensive inventory, DRC offers the most complete line of viton materials available today. Our highly trained development & design team can design a new part, or modify/duplicate an existing part. Our capabilities allow us to use viton manufacture quantities from prototypes and short runs through large quantity production runs.

Viton is a brand of synthetic rubber and fluoropolymer elastomer commonly used in O-rings and other molded or extruded goods. The name is a registered trademark of DuPont Performance Elastomers L.L.C. Viton fluoroelastomers are categorized under the ASTM D1418 and ISO 1629 designation of FKM. This class of elastomers is a family comprising copolymers of hexafluoropropylene (HFP) and vinylidene fluoride (VDF or VF2), terpolymers of tetrafluoroethylene (TFE), vinylidene fluoride (VDF) and hexafluoropropylene (HFP) as well as perfluoromethylvinylether (PMVE) containing specialties. The fluorine content of the most common Viton grades varies between 66 and 70%.

General Information

Common Name: Viton
Chemical Name: Flouroelastomer

Generally Resistant To: Acids, Hydrocarbons, Oils, Gasoline, Water, Heat, Fuels, Chemicals, Weather, Sunlight, Oxidation and Ozone
Generally Attacked By: Ketones, Solvents, High pH Chemicals and Low Molecular Weight Carbonyls

ASTM D 2000 / SAE J200 Classification: HK
MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification: TB
ASTM D-1418 Designation: FKM

Physical Properties

Elongation: 100% to 500%
Hardness Range (Durometer Shore A): 60 to 90

Mechanical Properties

Compression Set: Very Good
Rebound Rating: Cold: Fair to Good  Hot: Good to Excellent
Flex Cracking Resistance: Good
Abrasion Resistance: Good                                                                                                                                                                                Tear Resistance: Fair to Good
Impact Resistance: Good
Flame Resistance: Veery Good to Excellent

Thermal Properties

Minimum Service Temperature: -20°F to -70°F
Maximum Service Temperature: +600°F

Environmental Resistance

Recommended Shelf Life: 20 years
Weather Resistance: Excellent to Outstanding
Sunlight Resistance: Outstanding
Ozone Resistance: Outstanding
Oxidization Resistance: Outstanding
Water Resistance: Very Good
Steam Resistance: Poor to Good
Gas Permeability: Fair to Good
Radiation Resistance: Good, 7 x 104 Ga Gy
Fair, 2 x 105 Ga Gy

Chemical Resistance

Acetone: NOT RECOMMENDED
Amonium Hydroxide: Minor to Moderate Effect
Animal Fats: RECOMMENDED: Little or Minor Effect
Carbon Dioxide: RECOMMENDED: Little or Minor Effect

Chlorine: DRY: RECOMMENDED: Little or Minor Effect
WET: RECOMMENDED: Little or Minor Effect

Fluorine (Liquid): Minor to Moderate Effect
Fuel Oil: RECOMMENDED: Little or Minor Effect
Gasoline: RECOMMENDED: Little or Minor Effect
Hydrochloric Acid 37%: HOT: RECOMMENDED: Little or Minor Effect
COLD: RECOMMENDED: Little or Minor Effect

Hydrochloric Acid Concentrate 37%: HOT: Minor to Modereate Effect
COLD: RECOMMENDED: Little or Minor Effect

Kerosene: RECOMMENDED: Little or Minor Effect
Methyl Ethyl Ketone: NOT RECOMMENDED
Mineral Oil: RECOMMENDED: Little or Minor Effect
Naptha: RECOMMENDED: Little or Minor Effect
Natural Gas: RECOMMENDED: Little or Minor Effect
Nitric Acid: Concentrate: RECOMMENDED: Little or Minor Effect
Dillute: RECOMMENDED: Little or Minor Effect
Red Fuming: Moderate to Severe
Petroleum: Below 250: RECOMMENDED: Little or Minor Effect
Above 250: Minor to Moderate Effect
Phosphoric Acid: 20%: RECOMMENDED: Little or Minor Effect
45%: RECOMMENDED: Little or Minor Effect

Propane: RECOMMENDED: Little or Minor Effect
Salt Water: RECOMMENDED: Little or Minor Effect
Skydrol: Skydrol 500: NOT RECOMMENDED
Skydrol 7000: Minor to Moderate Effect
Sodium Hydroxide: Minor to Moderate Effect
Sulfuric Acid: Concentrate: RECOMMENDED: Little or Minor Effect
Dillute: RECOMMENDED: Little or Minor Effect
20% Oleum: RECOMMENDED: Little or Minor Effect

Toluene: RECOMMENDED: Little or Minor Effect
Transformer Oil: RECOMMENDED: Little or Minor Effect
Vegetable Oils: RECOMMENDED: Little or Minor Effect
Vinegar: RECOMMENDED: Little or Minor Effect

Contact us for Complete Chemical Resistance Information

Recommended Storage Conditions
•Store in a cool, dry place with temperature below 75°F.
•Keep away from direct heat or open flames.
•Avoid contact with solvents or other fluids.
•Do not store in direct sunlight.
•Keep products wrapped or sealed to minimize the absorption of moisture.
•Store in a relaxed condition free from tension, compression or other deformation.

Urethane

Polyurethane products often are simply called “urethanes”. Polyurethane is an extremely diverse product due to the multiple ways it can be configured during manufacturing. It can be used in the manufacture of flexible, high-resilience foam seating, rigid foam insulation panels, microcellular foam seals and gaskets, durable elastomeric wheels and tires (such as roller coaster, escalator and skateboard wheels), automotive suspension bushings, high performance adhesives, surface coatings, surface sealants, and hoses.

General Information

Trade Name: Urethane
Chemical Name: Polyester, Polyether Urethane

Generally Resistant To: Ozone, Hydrocarbons, Moderate Chemicals, Fats, Oils and Greases
Generally Attacked By: Concentrated Acids, Esters, Ketones, Chlorinated and Nitro Hydrocarbons

ASTM D 2000 / SAE J200 Classification: BG
MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification: SB
ASTM D-1418 Designation: AU, EU

Physical Properties

Elongation: 250% to 900%
Hardness Range (Durometer Shore A): 35 to 95

Mechanical Properties

Compression Set: Poor to Good
Rebound Rating: Poor to Good
Flex Cracking Resistance: Fair to Good
Abrasion Resistance: Excellent
Tear Resistance: Good to Excellent
Impact Resistance: Good to Excellent
Flame Resistance: – – –

Thermal Properties

Minimum Service Temperature: -40°F to -65°F
Maximum Service Temperature: +180°F to +220°F

Environmental Resistance

Recommended Shelf Life:
Weather Resistance: Excellent
Sunlight Resistance: Good to Excellent
Ozone Resistance: Excellent
Oxidization Resistance: Good to Excellent
Water Resistance: Poor to Good
Steam Resistance: Poor
Gas Permeability: Good to Excellent

Chemical Resistance 

Acetone: Poor
Ammonium Hydroxide: Good to Excellent
Animal Fats: Fair to Good
Carbon Dioxide: Excellent
Chlorine: Fair to Good
Fuel Oil: Good
Gasoline: Fair to Good
Hydrochloric Acid 37%: Poor
Kerosene: Fair to Good
Methyl Ethyl Ketone: Poor
Mineral Oil: Excellent
Naptha: Fair to Good
Natural Gas: Good
Nitric Acid: Poor
Petroleum: Good to Excellent
Phosphoric Acid: 20%: Fair to Good
45%: Poor to Fair
Propane: Good
Salt Water: Good to Excellent
Sodium Hydroxide: Good
Sulfuric Acid: Poor
Toluene: Fair
Transformer Oil: Fair to Good
Vegetable Oils: Good to Excellent
Vinegar: – – –

Call us for complete Chemical Resistance information

Recommended Storage Conditions
•Store in a cool, dry place with temperature below 75°F.
•Keep away from direct heat or open flames.
•Avoid contact with solvents or other fluids.
•Do not store in direct sunlight.
•Keep products wrapped or sealed to minimize the absorption of moisture.
•Store in a relaxed condition free from tension, compression or other deformation.

Neoprene

Neoprene (CR), also called polychloroprene or chloroprene rubber, is a family of synthetic rubber produced by the polymerization of chloroprene. A good general-purpose rubber, neoprene is valued for its high tensile strength, resilience, oil and flame resistance, and resistance to degradation by oxygen and ozone. It exhibits good chemical stability, and maintains flexibility over a wide temperature range. It is used in a wide variety of applications.

General Information

Common Name: Neoprene
Chemical Name: Polychloroprene

Generally Resistant To: Moderate Chemicals and Acids, Ozone, Oils, Fats, Greases, and Solvents
Generally Attacked By: Esters, Ketones, Chloronated, Aromatic and Nitro Hydrocarbons

ASTM D 2000 / SAE J200 Classification: BC, BE
MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification: SC
ASTM D-1418 Designation: CR

Physical Properties

Elongation: 100% to 800%
Hardness Range (Durometer Shore A): 15 to 95

Mechanical Properties

Compression Set: Good
Rebound Rating: Fair to Very Good
Flex Cracking Resistance: Good to Very Good
Abrasion Resistance: Very Good to Excellent
Tear Resistance: Good
Impact Resistance: Good to Excellent
Flame Resistance: Very Good to Excellent

Thermal Properties

Minimum Service Temperature: -30°F to -70°F
Maximum Service Temperature: +220°F to +280°F

Environmental Resistance

Recommended Shelf Life: 5 to 10 years
Weather Resistance: Poor to Good
Sunlight Resistance: Good to Very Good
Ozone Resistance: Good
Oxidization Resistance: Good
Water Resistance: Excellent
Steam Resistance: Poor to Good
Gas Permeability: Fair to Good
Radiation Resistance: Good, 1 x 105 Ga Gy
Poor, 9 x 105 Ga Gy

Chemical Resistance

Acetone: Minor to Moderate Effect
Ammonium Hydroxide: Recommended: Little to Minor Effect
Animal Fats: Minor to Moderate Effect
Carbon Dioxide: Minor to Moderate Effect
Chlorine: DRY: Moderate to Severe Effect
WET: NOT RECOMMENDED
Fluorine (Liquid): – – –
Fuel Oil: Minor to Moderate Effect
Gasoline: Minor to Moderate Effect
Hydrochloric Acid 37%: HOT: NOT RECOMMENDED
COLD: Minor to Moderate Effect
Hydrochloric Acid Concentrate 37%: HOT: NOT RECOMMENDED
COLD: Minor to Moderate Effect
Kerosene: Moderate to Severe Effect
Methyl Ethyl Ketone: NOT RECOMMENDED
Mineral Oil: Minor to Moderate Effect
Naptha: Moderate to Severe Effect
Natural Gas: RECOMMENDED: Little or Minor Effect
Nitric Acid: Concentrate: Moderate to Severe Effect
Dillute: RECOMMENDED: Little or Minor Effect
Red Fuming: Minor to Moderate Effect
Petroleum: Below 250: Minor to Moderate Effect
Above 250: NOT RECOMMENDED
Phosphoric Acid: 20%: Minor to Moderate Effect
45%: Minor to Moderate Effect
Propane: NOT RECOMMENDED
Salt Water: RECOMMENDED: Little or Minor Effect
Skydrol: Skydrol 500: NOT RECOMMENDED
Skydrol 7000: NOT RECOMMENDED
Sodium Hydroxide: RECOMMENDED: Little or Minor Effect
Sulfuric Acid: Concentrate: NOT RECOMMENDED
Dillute: Minor to Moderate Effect
20% Oleum: NOT RECOMMENDED
Toluene: NOT RECOMMENDED
Transformer Oil: Minor to Moderate Effect
Vegetable Oils: Minor to Moderate Effect
Vinegar: RECOMMENDED: Little or Minor Effect

Contact us for complete chemical resistance information

Recommended Storage Conditions
•Store in a cool, dry place with temperature below 75°F.
•Keep away from direct heat or open flames.
•Avoid contact with solvents or other fluids.
•Do not store in direct sunlight.
•Keep products wrapped or sealed to minimize the absorption of moisture.
•Store in a relaxed condition free from tension, compression or other deformation.

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or call us today at 800-259-0010

EPDM Rubber Sheets & Seals

EPDM rubber (ethylene propylene diene monomer) is a type of synthetic rubber. It is an elastomer which is characterized by a wide range of applications. EPDM exhibits satisfactory compatibility with fireproof hydraulic fluids, ketones, hot and cold water, and alkalis, and unsatisfactory compatibility with most oils, gasoline, kerosene, aromatic and aliphatic hydrocarbons, halogenated solvents and concentrated acids. The main properties of EPDM are its outstanding heat, ozone and weather resistance. It has excellent electrical insulating properties. It has good resistance to ketones, ordinary diluted acids and alkalines.

General Information

Common Name: EPDM, EP Rubber
Chemical Name: Ethylene-propylene Terpolymer

Generally Resistant To: Oxidation, Ozone, Sunlight, Abrasion, Fireproof Hydraulic Fluids, Water, and Alkalis
Generally Attacked By: Kerosene, Hydrocarbons, and Solvents

ASTM D 2000 / SAE J200 Classification: BA, CA
MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification: RS
ASTM D-1418 Designation: EPDM

Physical Properties

Elongation: 100% to 700%
Hardness Range (Durometer Shore A): 30 to 90

Mechanical Properties

Compression Set: Fair to Good
Rebound Rating: Fair to Very Good
Flex Cracking Resistance: Good to Very Good
Abrasion Resistance: Good to Excellent
Tear Resistance: Fair
Impact Resistance: Very Good
Flame Resistance: Poor

Thermal Properties

Minimum Service Temperature:  -75°F
Maximum Service Temperature: +350°F

Environmental Resistance

Recommended Shelf Life: 5 to 10 years
Weather Resistance: Excellent
Sunlight Resistance: Excellent
Ozone Resistance: Excellent
Oxidization Resistance: Excellent
Water Resistance: Excellent
Steam Resistance: Excellent
Gas Permeability: Fair to Good
Radiation Resistance: Good, 1 x 105 Ga Gy
                                       Poor, 2 x 106 Ga Gy

Chemical Resistance

Acetone: Little to Minor Effect
Ammonium Hydroxide: Little to Minor Effect
Animal Fats: Minor to Moderate Effect
Carbon Dioxide: Minor to Moderate Effect
Chlorine: DRY: – – –
                 WET: Moderate to Severe Effect
Fluorine (Liquid): Moderate to Severe Effect
Fuel Oil: NOT RECOMMENDED
Gasoline: NOT RECOMMENDED
Hydrochloric Acid 37%: HOT: Moderate to Severe Effect
                                       COLD: Little or Minor Effect
Hydrochloric Acid Concentrate 37%: HOT: NOT RECOMMENDED
                                                             COLD: Minor to Moderate Effect
Kerosene: NOT RECOMMENDED
Methyl Ethyl Ketone: Little or Minor Effect
Mineral Oil: NOT RECOMMENDED
Naptha: NOT RECOMMENDED
Natural Gas: NOT RECOMMENDED
Nitric Acid: Concentrate: Moderate to Severe Effect
                              Dillute: Minor to Moderate Effect
                     Red Fuming: NOT RECOMMENDED
Petroleum: Below 250: NOT RECOMMENDED
                    Above 250: NOT RECOMMENDED
Phosphoric Acid: 20%: Little to Minor Effect
                               45%: Minor to Moderate Effect
Propane: NOT RECOMMENDED
Salt Water: RECOMMENDED: Little or Minor Effect
Skydrol: Skydrol 500: RECOMMENDED: Little or Minor Effect
             Skydrol 7000: RECOMMENDED: Little or Minor Effect
Sodium Hydroxide: RECOMMENDED: Little or Minor Effect
Sulfuric Acid: Concentrate: Minor to Moderate Effect
                                  Dillute: Minor to Moderate Effect
                         20% Oleum: NOT RECOMMENDED
Toluene: NOT RECOMMENDED
Transformer Oil: NOT RECOMMENDED
Vegetable Oils: Little to Moderate Effect
Vinegar: RECOMMENDED: Little or Minor Effect

Contact us for Complete Chemical Resistance Information

Recommended Storage Conditions
•Store in a cool, dry place with temperature below 75°F.
•Keep away from direct heat or open flames.
•Avoid contact with solvents or other fluids.
•Do not store in direct sunlight.
•Keep products wrapped or sealed to minimize the absorption of moisture.
•Store in a relaxed condition free from tension, compression or other deformation.

Silicone

Silicone rubber (Q) is an elastomer (rubber-like material) composed of silicone—itself a polymer—containing silicon together with carbon, hydrogen, and oxygen. Silicone rubbers are widely used in industry, and there are multiple formulations. Silicone rubber is generally non-reactive, stable, and resistant to extreme environments and temperatures from -80°F to +550°F while still maintaining its useful properties. Due to these properties and its ease of manufacturing and shaping, silicone rubber can be found in a wide variety of products.

General Information

Common Name: Silicone
Chemical Name: Polysilixane

Generally Resistant To: Acid, Weather, Water, Sunlight, Ozone, Oxidation and Staining
Generally Attacked By: Hydrocarbons, Ketones, Solvents, Impact and Abrasion

ASTM D 2000 / SAE J200 Classification: FE, GE
MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification: TA
ASTM D-1418 Designation: Q

Physical Properties

Elongation: 100% to 900%
Hardness Range (Durometer Shore A): 30 to 90

Mechanical Properties

Compression Set: Good
Rebound Rating: Good to Excellent
Flex Cracking Resistance: Excellent
Abrasion Resistance: Poor to Fair                                                                                                                                                                      Tear Resistance: Poor
Impact Resistance: Poor to Fair
Flame Resistance: Good to Excellent

Thermal Properties

Minimum Service Temperature: -80°F to -180°F
Maximum Service Temperature: +550°F

Environmental Resistance

Recommended Shelf Life: 20 years
Weather Resistance: Excellent
Sunlight Resistance: Excellent
Ozone Resistance: Excellent to Outstanding
Oxidization Resistance: Excellent
Water Resistance: Excellent
Steam Resistance: Fair to Good
Gas Permeability: Poor to Fair
Radiation Resistance: Good, 7 x 104 Ga Gy
Fair, 2 x 105 Ga Gy

Chemical Resistance

Acetone: Minor to Moderate Effect
Ammonium Hydroxide: RECOMMENDED: Little or Minor Effect
Animal Fats: Minor to Moderate Effect
Carbon Dioxide: RECOMMENDED: Little or Minor Effect
Chlorine: DRY: – – –
Fluorine (Liquid): NOT RECOMMENDED
Fuel Oil: NOT RECOMMENDED
Gasoline: NOT RECOMMENDED
Hydrochloric Acid 37%: HOT: NOT RECOMMENDED
COLD: Minor to Moderate Effect

Hydrochloric Acid Concentrate 37%: HOT: NOT RECOMMENDED
COLD: NOT RECOMMENDED

Kerosene: NOT RECOMMENDED
Methyl Ethyl Ketone: NOT RECOMMENDED
Mineral Oil: Minor to Moderate Effect
Naptha: NOT RECOMMENDED

Natural Gas: RECOMMENDED: Little or Minor Effect
Nitric Acid: Concentrate: NOT RECOMMENDED
Dillute: Minor to Moderate Effect
Red Fuming: NOT RECOMMENDED
Petroleum: Below 250: RECOMMENDED: Little or Minor Effect
Above 250: NOT RECOMMENDED
Phosphoric Acid: 20%: – – –
45%: NOT RECOMMENDED

Propane: – – –
Salt Water: – – –
Skydrol: Skydrol 500: Moderate to Severe Effect Skydrol 7000: Minor to Moderate Effect
Sodium Hydroxide: Minor to Moderate Effect
Sulfuric Acid: Concentrate: NOT RECOMMENDED
Dillute: NOT RECOMMENDED
20% Oleum: NOT RECOMMENDED                                                                                                                                         Toluene: NOT RECOMMENDED                                                                                                                                                            Transformer Oil: Minor to Moderate Effect
Vegetable Oils: RECOMMENDED: Little or Minor Effect
Vinegar: RECOMMENDED: Little or Minor Effect

Contact us for Complete Chemical Resistance Information

Recommended Storage Conditions
•Store in a cool, dry place with temperature below 75°F.
•Keep away from direct heat or open flames.
•Avoid contact with solvents or other fluids.
•Do not store in direct sunlight.
•Keep products wrapped or sealed to minimize the absorption of moisture.
•Store in a relaxed condition free from tension, compression or other deformation.

FDA Approved

Food and Drug Administration (FDA CFR 21) – FDA Rubber

The Food and Drug Administration is the US Federal Agency responsible for ensuring that foods are safe, wholesome and sanitary; human and veterinary drugs, biological products and medical devices are safe and effective; cosmetics are safe; and electronic products that emit radiation are safe.

Through its Codes of Federal Regulations the FDA promulgates a list of materials and chemicals that are approved for contact with foodstuffs.

FDA CFR 21.177.2600 paragraphs A to D describe the relevant regulations for “Rubber articles intended for repeated use”. This lists the ingredients, and any quantitative limits, that may be used in rubber compounds intended for repeated use in all stages of food manufacture, preparation and transportation.

FDA CFR 21.177.2600 paragraphs E and F also specify limits on extractable products if the FDA rubber is to be used in contact with aqueous or fatty foods. The regulation specifies extraction test limits in water and n-hexane. It is important to note that for an FDA rubber material to be compliant to these requirements, then this claim must be supported with appropriate documentation such as a manufacturer’s FDA certificate.

FDA does not “approve” products to CFR 21.177.2600. It is for the manufacturer of the finished FDA rubber product to demonstrate compliance by issuing a FDA certificate. It is also important to note that while a component may be made from a FDA rubber material that is suitable for food contact; this does not mean that the part is technically suitable for its intended application.

DRC manufactures custom-designed components from a range of FDA-compliant rubber materials, including Nitrile, EPDM and Silicone.

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