Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of iso9001 certified customize epdm/fkm/silicone/rubber/nbr/metal waterproof molding parts for conductive masking in China. If you're going to buy iso9001 certified customize epdm/fkm/silicone/rubber/nbr/metal waterproof molding parts for conductive masking made in China, welcome to get more information from our factory. We also accept customized orders.
Basic Info.
| Product Name | Rubber molding parts | Trademark | BRP |
| Origin | China | HS Code | 4016999090 |
| Design | 3D Drawing, STP or Igs Format | Model NO. | Customized |
| Transport Package | As your request | Production Capacity | 1000000PCS Each Month |
Product Description
EPDM (Ethylene Propylene Diene Monomer) and NBR (Nitrile Butadiene Rubber) are two of the most widely used synthetic rubbers in industry. Their core difference can be summarized as follows: NBR specializes in oil resistance but lacks weather resistance, while EPDM specializes in weather resistance but is not oil resistant. The two materials are almost complementary.ISO9001 Certified Customize EPDM/Fkm/Silicone/Rubber/NBR/metal Waterproof Molding Parts For Conductive Masking
🔬 Performance Comparison
| Item | NBR (Nitrile) | EPDM (Ethylene Propylene) |
|---|---|---|
| Chemical Composition | Copolymer of Acrylonitrile & Butadiene (Polar) | Terpolymer of Ethylene, Propylene & Diene (Non-polar, Saturated backbone) |
| Oil Resistance | ⭐⭐⭐⭐⭐ Excellent. Resistant to mineral oil, hydraulic oil, fuel. | ❌ Very Poor. Severe swelling and failure upon contact with oils. |
| Weather Resistance | ❌ Poor. Not ozone/UV resistant; prone to cracking outdoors. | ⭐⭐⭐⭐⭐ Excellent. High resistance to UV, ozone, and aging. Ideal for outdoor use. |
| Temperature Range | Approx. -40°C to +120°C (long term) | Approx. -40°C to +150°C (up to 170°C short term) |
| Water/Steam Resistance | Fair. Degrades under heat/humidity. | ⭐⭐⭐⭐⭐ Excellent. Suitable for hot water, steam, and brake fluid. |
| Acid/Alkali Resistance | Fair. Not suitable for strong acids/bases. | Good. Resistant to dilute acids, alkalis, ketones, alcohols. |
| Wear/Resilience | Good abrasion resistance. Suitable for dynamic sealing. | Good resilience, slightly lower abrasion resistance. Often used for static seals. |
| Cost | Low. Cost-effective. | Medium. Slightly higher than NBR. |
🏭 Typical Applications ISO9001 Certified Customize EPDM/Fkm/Silicone/Rubber/NBR/metal Waterproof Molding Parts For Conductive Masking
Choose NBR (Nitrile) - For Oil Contact:
Automotive: Engine oil seals, transmission gaskets, fuel line O-rings.
Industrial: Hydraulic system seals, pneumatic tool gaskets, oil hoses.
⚠️ Warning: Do not use for long-term outdoor exposure or contact with hot water/steam.
Choose EPDM (Ethylene Propylene) - For Outdoor, Water, or Steam:
Automotive: Door seals, radiator/coolant hoses, brake systems (compatible with brake fluid).
Construction/HVAC: Window/door weatherstripping, roofing membranes, HVAC water pipe gaskets.
Industrial: Hot water/steam line seals, liners for weak acid/alkali media.
⚠️ Warning: Strictly prohibited in any environment containing oil (engine oil, gasoline, hydraulic oil).
✅ Quick Selection Guide
ISO9001 Certified Customize EPDM/Fkm/Silicone/Rubber/NBR/metal Waterproof Molding Parts For Conductive Masking
Presence of Oil → Use NBR (Hydraulics, fuel, lubrication systems).
Presence of Water/Outdoors/Steam → Use EPDM (Coolant pipes, doors/windows, roofing, HVAC).
If the application involves both oil and intense sunlight, consider upgrading to HNBR or FKM (Viton) instead of using these two interchangeably.
| Size | as per customer requirement |
| Material | Rubber/silicone/PU/PVC/ EPDM,NBR, NR,SBR, SIR, FLK |
| Product Color | clear, white,black, any other colors |
| Packing | As your request |
| Shape | as per customers' drawing |
| Hardness | 20-90shore A |
| Parameters | Inch, centimeter, millimeter, etc. |
| Manufacturing | ODM & OEM Service |
| Quality certification | Very small quantities are OK |
| Samples Lead time | About 3-5 days |
| Temperature | -40ºC~+230ºC |
| Payment Terms | L/C, T/T, WEST UNION, PAYPAL, ESCROW |
| Port | Hangzhou, Shanghai, Ningbo or as required |
| Lead Time | 10-30 working days(depend on the order quantity) |
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