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Custom EPDM Rubber Cap
EPDM Rubber Cap Manufacturing Factory
EPDM rubber caps provide durable outdoor protection where standard rubber fails. They resist cracking, hardening, UV and ozone damage, rain, and temperature swings, making them ideal for mining hydraulics, solar rails, outdoor conduits, and construction machinery.
As a custom rubber cap manufacturer, Flexiparts molds each cap to your exact dimensions, wall thickness, durometer, and environmental requirements — no stock items, fully tailored for long-term outdoor performance.
EPDM Rubber Customizable Dimensions
- UV & Ozone Resistance — no cracking after extended outdoor exposure
- Temperature Range — flexible from -40°C to +130°C, covering most outdoor and industrial conditions
- Wall Thickness — engineered from 0.8mm to 6mm depending on protection level required
- Durometer — typically specified between 40 and 80 Shore A for outdoor sealing/masking applications
- Optional Upgrades — UV-absorbing carbon black, anti-static additives, or flame-retardant (UL94 HB) grades
Notes: Reference ranges only — every cap is molded to your drawing.
Why Choose EPDM Over NBR or NR
| Factor | EPDM | NBR | NR |
| UV/ozone resistance | Excellent | Poor | Poor |
| Outdoor weathering | Excellent | Moderate | Poor |
| Oil/fuel resistance | Poor | Excellent | Poor |
| Cost | Moderate | Moderate | Low |
EPDM is the standard choice when the cap will sit outdoors long-term and won’t contact petroleum-based fluids. If the application involves oil or fuel exposure, NBR is the better fit
FAQ About EPDM Rubber Caps
1. What sizes can Flexiparts produce for EPDM rubber caps?
There are no fixed sizes. Caps are molded to your OD/ID, wall thickness, and depth based on your drawing or sample.
2. What’s the minimum order quantity for custom EPDM caps?
MOQ depends on mold complexity and size — contact us with your specs for an exact quote.
3. Can EPDM caps be made in colors other than black?
Yes. Color is set by compound formulation and can be matched to your requirement.
4. How long do EPDM caps last outdoors compared to NBR or silicone?
EPDM typically outperforms NBR and standard silicone in continuous outdoor UV/ozone exposure, with service life commonly exceeding 5 years depending on environment and formulation.
5. Is FDA-grade EPDM available?
Yes, food-contact and FDA-compliant EPDM formulations are available on request.
How To Work with Us
The key to great custom parts is collaboration. As a custom molding manufacturer, our engineers will stay connected with you throughout the process, and deliver products that meet your expectations.
- Send us your 2D/3D files or product concept, for an accurate quote, please send us materials, order quantity, and surface requirements.
- We review your design and send you a clear cost within 24 hours.
- Our tooling team builds the mold to your specifications, then send you T1 samples for confirmation.
- Once the sample is approved, we run full production under strict quality control
- Your finished parts are packaged securely and shipped to your location on time.
Related Products
- More Rubber Cap
Start Your Project!
Need custom rubber, plastic, or polyurethane parts? FlexiParts offers prototyping and on-demand, low to high-volume production of high-quality, durable components. Whatever your needs, we deliver reliable custom parts on time and within budget. Start your project with us today!
