This prevents fluid and vapor leakage, keeps debris out of the machinery, and maintains pressure throughout, ensuring safety and proper function.

Smithers is fully equipped to offer a variety of lab testing services for rubber seals, o-rings, and gaskets. Our experts can advise you on the best standard testing package for your product or design a custom procedure that will suit your needs. Our testing services include:

• Aging
• Compression set
• Compressive stress relaxation
• Post conditioning pressurization
• Temperature exposure (extreme cold and heat)
• Tensile
• Volume swell

Common Evaluations Performed in our Lab:

• A-A-55759 – Rubber, Silicone; Sheet, Solid, Shape 15
• A-A-59588 – Rubber, Silicone
• AMS-C-9084 – Cloth, Glass, Finished, for Resin Laminates
• ASTM C-1115 – Standard Specification for Dense Elastomeric Silicone Rubber Gaskets and Accessories
• ASTM C-865 – Standard Practice for Firing Refractory Concrete Specimens
• ASTM D-395 – Standard Test Methods for Rubber Property—Compression Set
• ASTM D1414 – Rubber O-Ring Tensile Strength Testing
• ASTM D-6147 – Standard Test Method for Vulcanized Rubber and Thermoplastic Elastomer—Determination of Force Decay (Stress Relaxation) in Compression
• ASTM D-6576 – Standard Specification for Flexible Cellular Rubber Chemically Blown
• ASTM E-2203 – Standard Specification for Dense Thermoplastic Elastomers Used for Compression Seals, Gaskets, Setting Blocks, Spacers and Accessories
• ASTM F-477 – Standard Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe
• AWWA C200 – Steel Water Pipe – 6 inches (150mm) and Larger
• DMS 2221C
• GE A15F18A1
• GE A15F18B1
• GE A50TF298-S2
• ISO 815 – Rubber, vulcanized or thermoplastic – Determination of compression set
• ISO 3384 – Rubber, vulcanized or thermoplastic – Determination of stress relaxation in compression
• MIL-I-24768 - Military Specification: Insulation, Plastics, Laminated, Thermosetting
• MIL-R-25988B – Military Specification: Rubber, Fluorosilicone Elastomer, Oil-and-Fuel Resistant, Sheets, Strips, Molded Parts, and Extruded Shapes
• MIL-R-6130C – Military Specification: Rubber, Cellular, Chemically Blown
• MIL-STD-670B – Military Standard: Classification System and Tests for Cellular Elastomeric Materials
• SAE AMS 3193 – Silicone Rubber Sponge, Closed Cell, Medium, Extreme Low Temperature
• SAE AMS 3195 – Silicone Rubber Sponge, Closed Cell, Medium
• SAE AMS 3196 – Silicone Rubber Sponge Closed Cell, Firm
• SAE AMS 3197 – Sponge, Chloroprene (CR) Rubber, Soft
• SAE AMS 3198 – Sponge, Chloroprene (CR) Rubber, Medium Stiffness
• SAE AMS 3201 – Nitrile (NBR) Rubber, Dry Heat Resistant, 35-45
• SAE AMS 3205 – Synthetic Rubber Low-Temperature Resistant 45-55
• SAE AMS 3207 – Chloroprene (CR) Rubber, Weather Resistant, 25-35
• SAE AMS 3208 – Chloroprene (CR) Rubber, Weather Resistant, 45-55
• SAE AMS 3209 – Chloroprene (CR) Rubber, Weather Resistant, 65-75
• SAE AMS 3215 – Acrylonitrile Butadiene (Nbr) Rubber Aromatic Fuel Resistant 65-75
• SAE AMS 3216 – Fluorocarbon (FKM) Rubber, High-Temperature - Fluid Resistant, Low Compression, Set 70-80
• SAE AMS 3217 – Standard Elastomer Stocks, Test Slabs
• SAE AMS 3226 – Acrylonitrile Butadiene (Nbr) Rubber, Hot Oil and Coolant Resistant, Low Swell, 45-55
• SAE AMS 3238 -  Butyl (IIR) Rubber, Phosphate Ester Resistant, 65-75
• SAE AMS 3304 – Silicone Rubber, General Purpose, 70 Durometer
• SAE AMS 3334 – Silicone Rubber, Extreme Low-Temperature Resistant, 35-45
• SAE AMS 3345 – Silicone Rubber, 1000 Psi (6.90 Mpa) Tensile Strength, 45-55
• SAE AMS 3347 – Rubber, Silicone 1200 Psi (8.27 Mpa), High Modulus 45-55
• SAE AMS 7271 – Rings, Sealing, Butadiene-Acrylonitrile (NBR) Rubber Fuel and Low Temperature Resistant 60-70
• SAE AMS 7379 – Rubber: Fluorocarbon Elastomer (FKM) 70 to 80 Hardness, Low Temperature Sealing Tg -40 °F (-40 °C) For Elastomeric Seals in Aircraft Engine Oil, Fuel and Hydraulics Systems
• ZZ-R-765 – Federal Specification: Rubber, Silicone