01AS568 & METRIC
Rubber O-Rings
Standard and metric precision elastomeric O-rings in NBR, FKM Viton, EPDM, and Silicone for static and dynamic service.
Classic Rubber Products manufactures precision sealing elements in standard AS568, ISO 3601, and custom DIN specifications. From off-the-shelf continuous NBR cords to engineered Viton and FFKM components, our portfolio meets the most demanding industrial requirements.
02BUY ONLINE (46 SIZES)
Rubber Cords
Continuous extruded solid & sponge cords (1mm - 30mm) for custom fabrication, large diameter splicing, and enclosure sealing.
03FLANGE SEALING
Rubber Gaskets
Full face and raised face (IBC) flange gaskets to ANSI B16.21, DIN 2690, and custom heat exchanger profiles.
04CUSTOM TOOLING
Custom Rubber Parts
Precision compression moulded components, rubber-to-metal bonded parts, diaphragms, and bellows manufactured to drawing.
05FLUID POWER
Hydraulic Seals
High-pressure rod seals, piston compact seals, wiper rings, and wear guide bands for heavy hydraulic cylinders up to 400 bar.
06INDUSTRIAL ROLLS
Rubber Sheets & Mats
Commercial, food grade, cloth-insertion sheeting and IS 5424 / IEC electrical insulation safety mats up to 33 kV.
Polymer Compatibility & Specification Guide
Select the optimal elastomer based on your chemical media, working temperature, and operational pressure.
| Polymer Type | Trade Name / Code | Hardness Range | Operating Temp | Key Strengths | Primary Applications |
|---|---|---|---|---|---|
| Nitrile (NBR) | Buna-N / Acrylonitrile | 40 to 90 Shore A | -30°C to +110°C | Petroleum oils, hydraulic fluids, greases, water | General machinery, O-rings, extruded cords, automotive |
| Fluoroelastomer (FKM) | Viton® / Fluorocarbon | 60 to 90 Shore A | -20°C to +200°C | Aggressive chemicals, fuels, aromatic hydrocarbons, high heat | Petrochemical, refineries, aerospace, valve sealing |
| EPDM | Ethylene Propylene | 40 to 85 Shore A | -40°C to +140°C | Steam, hot water, ozone, weathering, mild acids & alkalis | Water utilities, outdoor equipment, HVAC, steam valves |
| Silicone (VMQ) | Polysiloxane | 30 to 80 Shore A | -60°C to +230°C | Extreme thermal range, food grade inertness, UV & ozone | Food & pharma processing, lighting gaskets, ovens |
| Neoprene (CR) | Chloroprene | 45 to 80 Shore A | -35°C to +100°C | Moderate oil resistance, weathering, flame retardancy | Marine enclosures, vibration damping, weatherstripping |
| Polyurethane (AU/EU) | Urethane | 70 to 95 Shore A | -35°C to +90°C | Extremely high tensile strength, abrasion & extrusion resistance | Hydraulic cylinder rod seals, wipers, heavy duty packings |
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