High-elastic O-ring rubber cord in NBR, EPDM, FKM and silicone grades. Supplied as continuous cord or strip for on-site fabrication of custom O-rings, gaskets and seals in pneumatic equipment, hydraulic systems and general machinery. Weather resistant and available in multiple hardness ranges to suit demanding sealing environments.
O Ring Cord & Rubber Strip Overview
Silicone Rubber Cord Specifications
| Product Name | Silicone rubber foam sponge seal strip |
|---|
| Material | Silicone |
|---|
| Color | Red, black, white, blue, etc., or as your requirement |
|---|
| Hardness | 30–45 Shore A |
|---|
| Temperature Resistance | -50°C to 230°C (conventional); special material -60°C to 280°C (customized) |
|---|
| Size and Design | According to 2D or 3D drawing |
|---|
| Application | Automobile, industrial electrical equipment, doors and windows |
|---|
| Production Method | Extrusion |
|---|
| Key Features | High temperature resistance; ozone and waterproof performance; excellent weather, ageing and chemical resistance; low friction, excellent sealing property, noise absorption; shockproof to reduce door slam |
|---|
| Shipping Port | Any port of China — Qingdao, Tianjin |
|---|
| MOQ | 100 meters |
|---|
| Payment Terms | T/T, L/C |
|---|
| Packing Details | 1. Plastic bag packing + carton
2. According to customer's requirement |
|---|
| Service | 1. Free replacement of same quantity for any quality problem
2. 100% product check before delivery
3. Response within 12 hours
4. Kinds of classic parts can also be supplied
5. High quality and safety |
|---|
| Advantage | 1. 24 months warranty
2. Small orders acceptable
3. Strong brand awareness — own brand
4. Quality system certified
5. More than 20 years of professional experience |
|---|
Sealing Applications for Foam Sponge Silicone Rubber Cord
Foam sponge silicone rubber cords play a vital role in sealing gaps across many industrial sectors. They seal against any entry of water or air. Sponge strips have a closed-cell structure, so no liquid, gas or air is allowed to pass through them. Typical uses include mechanical and electrical equipment box seals, wooden door seals, garage door seals, glass curtain wall seals, aluminum window seals, door seals, aluminum alloy and plastic-steel door and window seals, refrigerator door seals, dry goods door seals, automobile seals, automobile decoration strips, train and subway sealing strips, and ship and yacht sealing strips.
O Ring Cord & Rubber Strip Applications
- Hydraulic systems: Used to make custom O-rings for hydraulic cylinders, pumps and oil pipelines
- Pneumatic equipment: On-site sealing for air valves, air compressors and pneumatic cylinders
- Water treatment industry: Sealing for water pumps, pipe flanges and filter housings
- Machinery & general engineering: Cut into required sizes for equipment maintenance and repair
- Valve and fitting sealing: Custom gaskets and ring seals for industrial valves and pipe joints
- Automotive aftermarket: Repair seals for cooling systems and fluid pipelines
- Heavy-duty outdoor equipment: Seals exposed to ozone, UV and weather aging environments
- Food & medical equipment (silicone grade): Sealing parts for sanitary machinery
Material Options & Performance Characteristics
We supply NBR O-ring cord, FKM O-ring cord, silicone O-ring cord and EPDM O-ring cord. Every material has its own advantages — choose according to your requirements.
1) NBR O Ring Cord
Good chemical resistance to mineral oils and greases, hydraulic oils H, HL, HLP, non-inflammable hydraulic pressure fluids HFA, HFB, HFC to approx. +50°C, and water to max. +80°C.
2) FKM O Ring Cord
Good chemical resistance to mineral oils and greases, synthetic oils and greases, and engine, transmission and ATF oils to approx. +150°C.
3) EPDM O Ring Cord
Good resistance to hot water and steam, detergents, caustic potash solutions, silicone oil and greases, many polar solvents, and many diluted acids and chemicals, along with a high level of ozone resistance.
4) Silicone O Ring Cord
Good resistance to water (up to 100°C), aliphatic engine and transmission oils, and animal and plant oils and fats.
Our Factory
Rui Chen Sealing Co., Ltd was built in 2006 and now has more than 200 staff. The company has two branches in Guangdong and Jiangxi: Dongguan Rui Chen Sealing Co., Ltd. and Shangrao Rui Chen Sealing Co., Ltd. In recent years, the company has been supported by the Shangrao municipal government and fully enjoys all preferential policies for the economic development zone. We always take "best quality, best service" as our mission, and make progress together with you in harmony and mutual win.
Certificates
Production Progress
FAQ
Q1: What kinds of materials can you provide?
NBR, EPDM, silicone, FKM, neoprene (CR), HNBR, NR, IIR, SBR, ACM, AEM, fluorosilicone (FVMQ), FFKM, etc.
Q2: How do I select the raw compound for my application?
With years of experience working with a variety of materials, we can help select the material that best suits your needs while keeping material costs in mind.
Q3: How long does it take to get a quote?
If your information is complete, we will provide the quotation within 8 hours.
Q4: Can you provide samples? Are they free or extra?
Yes, we can provide samples for free. Freight can be negotiated.
Q5: What is the normal lead time for product orders?
Stock generally takes 3–7 days, mold about 15–18 days, and no-mold about 25–30 days, depending on the product situation.
Q6: How do you check the quality of the bulk order?
We perform incoming inspection to control raw material quality, process inspection to ensure production quality, and 100% full inspection before shipping, including automatic inspection machine full inspection. Pre-production samples are also provided according to customer needs before mass production.
Q7: What is your standard packing?
Plastic bag for inner packing and carton box for outer packing; also packed according to customer's requirements.
Q8: What are your payment terms?
We accept T/T 30% deposit and 70% balance against copy of B/L, or L/C at sight. PayPal is also accepted.
Your message must be between 20-3,000 characters!
