Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
Wholesale O-RONG Cord Industrial Custom NBR FKM EPDM Rubber Strip
- Category: O-Ring Cord, Solid Rubber Cord, Round Sealing Cord
- Temperature: -30℃~+200℃
- Material: NBR, FKM, EPDM, Silicone, PU, FVMQ
- Color: Black
- Hardness: 70 shore A
- Product description: It can be cut to length and bonded into O-rings, gaskets, and continuous seals. Widely applied in hydraulic systems, pneumatics, plumbing, automotive, machinery, appliances andindustrial equipment for waterproofing, oil resistance, shock absorption and static/dynamic sealing.
1.Key Features
- Form: Solid round cross-section continuous strip (non-closed loop)
- Available Materials: NBR, FKM, EPDM, Silicone, PU, FVMQ, etc.
- Specifications:
- Inch sizes: 1/16", 3/32", 1/8", 3/16", etc.
- Metric sizes: 1.0mm ~ 12mm (common sizes: 1.8/2.4/3.5/5.7mm)
- Usage: Cut to required perimeter → Bond the ends (cold bonding / hot vulcanization) → Manufacture custom O-rings
Item | Standard O-Ring | O-Ring Cord |
Production | Molded (standard sizes only) | Continuous extrusion, no mold required |
Flexibility | Fixed inner diameter & cord diameter | Custom sizes, extra-large diameters available |
Inventory | Multiple SKUs required | One coil for multiple applications |
Joint | Seamless (high strength) | Bonded joint (slightly lower strength) |
Application | Standard grooves, high-pressure dynamic | Non-standard, emergency, large-size, special-shaped |
3.Typical Applications
- Extra-large diameter sealing: Wind power, large flanges, tanks, centrifuges
- Non-standard equipment: Special machinery, retrofits, non-standard grooves
- Emergency maintenance: On-site quick fabrication, replacement for out-of-stock O-rings
- Small-batch/sample production: No mold cost, low cost, fast delivery
- Static/low-speed dynamic sealing: Hydraulics, pneumatics, valves, filtration, construction machinery
4.Bonding Methods
- Cold Bonding (Fast): Instant adhesive/special glue, suitable for low-pressure static applications
- Hot Vulcanization (Strong): Heat-activated bonding, joint strength close to the base material, suitable for high-pressure/dynamic applications
In short: Standard O-rings are ready-made, while O-ring cord is the raw material to make your own custom O-rings.
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