Manufacturing precision component parts

815-987-2900

rubber 1Rubber is probably the most widely used gasket material. Rubber is offered in many different styles and grades to meet many applications’ needs. In addition, rubber is commonly available “off the shelf” in most styles, grades and thicknesses.

Synthetic rubbers are generally made from petroleum-based by-products. Alternatively, natural rubber is derived from latex from Rubber trees which are found in Thailand and Indonesia.

Many rubber products are offered in standard commercial grades as well as high-grade. Generally, high-grade materials will have a higher percentage of the actual product (ie Nitrile) and may have a higher tensile strength and/or operating temperature range.

A list of the most commonly used rubbers and their characteristics are listed below.

 

  Durometer   Thickness   Temperature Range   Tensile Strength (PSI)   Overview
Nitrile, BUNA-N, NBR 30 - 90 .015 - 1.00 -30 - +220 850 Widely used for its resistant to most oil, grease, water and hydraulic fluid.  It is also compatible with certain chemicals
FDA Nitrile - Food Grade Nitrile 50 - 70 .015 - 1.00 -30 - +200 800 FDA approved ingredients for use around food; white color
           
Neoprene (Chloroprene) 30 - 80 .015 - 1.00 -40 - +200 500 Low cost, general purpose material; moderate oil, grease, solvent and checmical resistance
           
EPDM 40 - 80 .015 - 1.00 -40 - +300 900 Excellent UV, ozone and oxidation resistance; also abrasion resistant
NSF Approved EPDM 40 - 80 .015 - 1.00 -40 - +300 900 NSF 61 approved for potable water applications
FDA Approved EPDM 40 - 80 .015 - 1.00 -40 - +300 900 FDA approved ingredients for use around food; white color
           
Viton; FKM 50 - 80 .015 - 1.00 -20 - +400 1000 Higher-end material for broad use; good oil, fuel and chemical resistance; good aging properties; excellent UV, ozone and oxidation resistance
           
Butyl 40 - 80 .015 - 1.00 -40 - +225 1500 Excellent dielectric properties; low permeability to air and gases; moderate UV, ozone and oxidation resistance
           
Silicone (Commercial Grade) 30 - 80 .015 - 1.00 -80 - +450 600 Excellent high and low-temperature range; excellent ozone, oxidation and water resistance
FDA Silicone 30 - 60       FDA approved ingredients for use around food
Electrically Conductive Silicone 60       Protection against electrostatic discharge and EMI
Fibreglass Reinforced Silicone 70       Increased mechanical strength - up to 1300 PSI
Medical Grade Silicone 40 - 70       USP Class Testing approved for use in medical devices
           
Fluorosilicone 40 - 70 .015 - 1.00 -60 - +500 900 Excellent temp range; resistant to fuels and solvents; naturally resistant to ozone
           
Urethane 60 - 90 .015 - 1.00 -40 - +200 5000 Most abrasion resistance and strength while maintaining stability and flexibility
           
SBR 60 - 80 .015 - 1.00 -40 - +220 500 Excellent abrasion, wear and water resistance; also resistant to certain chemicals
           
Gum Rubber / Natural Rubber 40 .031 - 1.00 -60 - +220 2300 Good physical properties and low temp range; greater elongation than most rubbers; very resilient
           
Epichlorohydrin  60-70 .031 - 1.00 -40 - +250 1200 High-end rubber; excellent resistance to oil and grease; broad operating temp range; broad chemical compatibility
           

 

PSA available on all products. PSA is available in acrylic-based, rubber-based and acrylic-rubber blends. PSA also available in transfer and double-coated options. 

Standard thicknesses available in -.015, .031, .062, .093, .125, .187, .250, .312, .375, .500, .625, .750, 1.00.

Custom and metric thicknesses also available

Standard durometer for most rubber products: 30, 40, 50, 60, 70, 80, 90

 

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