Custom Molded NBR rubber Gasket is compression molded from nitrile butadiene rubber (NBR / Buna-N). It delivers outstanding resistance to mineral oil, lubricants and fuel, with good abrasion resistance and stable mechanical properties. Cost-effective for general industrial sealing. Suitable for static and low-speed dynamic sealing. We support custom shapes, sizes and hardness per your drawings or samples for automotive, hydraulic, pump & valve and general machinery sealing.
Item No :
Lead-R007Brand :
LEADUsage :
used in automotive, oil & gas, hydraulic pneumatic systems, HVAC, refrigeration, general machinery and new energy equipment for static and dynamic sealingSize :
custom sizeMOQ :
500-1000PCSLead Time :
7-15daysPayment :
100% TT, L/C at sigh, Paypal, Wester unionCustom Molded NBR rubber Gasket, Good oil resistance Flat Gasket for Outdoor Flange
Our custom molded NBR elastomer gaskets are compression molded from nitrile elastomer compounds. They offer reliable sealing against petroleum-based fluids, with good tensile strength and low compression set. Not recommended for strong polar solvents, ketones or esters. RoHS and REACH compliant grades are available on request.
| Item Name | Custom Molded NBR rubber Gasket, Good oil resistance Flat Gasket for Outdoor Flange |
| Material | NBR |
| Hardness | 30-90Shore A |
| Color | We can customize it according to your requirements. |
| Manufacturing | Compression molding |
| Price Tip | The price shown above is just for reference, fnal actual price depends on your design, material request, surface treatment order aty, package request etc. |
| Certifications | RoHS, REACH certificate |
Our molded rubber components comply with GB/T 3672‑2002 (ISO 3302‑1:1996). Four tolerance grades M1~M4 are optional. We separate F fixed dimensions and C closure dimensions to meet your precision requirements for custom rubber seals.
We can provide complete physical test reports according to your material requirements, including hardness, tensile strength, elongation, compression set, temperature range and chemical resistance.
We are able to supply COA, COC and compliance documents for REACH, RoHS, FDA and UL. Batch traceability is guaranteed for custom molded sealing parts.
Xiamen Lead Rubber & Plastic Industry Co., Ltd. is a professional factory focused on the design and fabrication of rubber & plastic molds, as well as custom molded rubber and plastic components.
We specialize in exporting O-rings, rubber gaskets, various rubber seals, rubber bumpers, molded plastic parts, precision tooling molds and other custom molded products.
Our in-house mold workshop develops custom molds for a wide range of rubber and plastic materials. We design and manufacture tooling strictly according to customers’ 2D/3D drawings, samples and technical specifications.
We provide full one-stop OEM & ODM solutions for global buyers, covering mold development, material formulation, prototyping, mass production and quality inspection. Our products widely serve automotive, hydraulic, pneumatic and general industrial sealing applications.
Custom rubber molded products Manufacturing
Lead Rubber is a professional manufacturer specializing in custom molded rubber sealing components and mold fabrication.
We mainly export custom rubber O-rings, gaskets, various rubber seals, rubber bumpers, precision molds and other custom molded rubber & plastic parts.
We develop custom molds for a wide range of rubber and plastic materials based on customers’ drawings, samples and technical requirements. We deliver one-stop OEM & ODM custom sealing solutions for global buyers.
Lead rubber offers full OEM development for custom molded rubber O-rings, gaskets and seals, plus custom plastic components.
Following your drawings, samples or technical specifications, we manufacture tailored sealing parts with our in-house mold workshop covering mold design, CNC machining, trial testing and validation.
We support multiple materials including NBR, EPDM, FKM, Silicone and engineered plastics. Our engineering team collaborates with you for prototype sampling and mass production tooling to balance quality, lead time and cost.
Lead rubber has rigorous quality control & testing system covers the full production cycle: incoming raw material inspection, in-process monitoring, sample validation and final batch release for all custom molded rubber & silicone components. Every molded gasket and seal is inspected to meet drawing tolerances, material specs and global compliance standards, delivering stable sealing performance for electronics, energy storage, EV and industrial applications.
Lead Rubber offers packaging options for international shipments, including PE bags, export carton, and palletized packaging where required. Customized packaging, logo printing, and product labeling can be discussed according to order quantity and customer requirements.
Packaging methods are selected according to the product type, shipment method, and destination requirements. Please confirm any special packaging or labeling instructions before placing an order.
1. What is NBR gasket?
NBR gasket, also known as Buna-N gasket, is a sealing part made of nitrile butadiene rubber. It is widely used for oil-resistant sealing with good cost performance.
2. What is the working temperature range of NBR gasket?
Normally -30℃ to +120℃. Short-term peak temperature can reach 130℃.
3. What media does NBR gasket resist?
It has excellent resistance to mineral oil, lubricating oil, grease, gasoline and diesel fuel.
4. What media is NBR NOT suitable for?
Not recommended for ketones, esters, strong polar solvents, strong oxidizing agents and concentrated acids. For these media, FKM is preferred.
5. Is NBR gasket suitable for dynamic sealing?
Yes. It has good abrasion resistance and tensile strength, suitable for static sealing and low-speed dynamic sealing.
6. Can you customize NBR gasket in different shapes and hardness?
Yes. We support compression molding and die cutting according to drawings or samples. Hardness available: 30–90 Shore A.
7. What certifications are available for NBR gasket?
RoHS and REACH compliant grades are available. ISO9001 is our standard factory certification.
8. What is the difference between NBR and HNBR gasket?
HNBR has better ozone resistance, aging resistance and sour gas resistance than NBR, and can withstand higher temperature. NBR is more economical.
9. What is your MOQ for NBR gasket?
Small quantity is acceptable for sample prototypes. Mass production MOQ depends on mold and gasket size.
10. What tolerance standard do you follow?
We follow ISO 3302-1 for rubber dimensional tolerance.
Request a Quote for Molded NBR gasket ,Contact Lead Rubber with your specifications.
Please submit 2D/3D CAD drawings or physical samples, dimensions, rubber material, hardness, quantity, application and special performance requirements for quotation. If custom mold tooling is needed, also advise cavity quantity and mold steel preferences.
Contact Person: Sunny
Tel: 0086-13400616316
WhatsApp: 0086-13400616316
Email: sales1@leadindustryproducts.com
Contact Person: Lucy
Tel: 0086-13328793979
WhatsApp: 0086-13328793979
Email: sales4@leadindustryproducts.com
Contact Person: Nana
Tel: 0086-15872688050
WhatsApp: 0086-15872688050
Email: sales2@leadindustryproducts.com
Pricing Notice: The displayed price is for reference only. The final quotation depends on product design, material selection, dimensions, tooling requirements, order quantity, surface treatment where applicable, and packaging specifications.
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Custom Molded NBR rubber Gasket is compression molded from nitrile butadiene rubber (NBR / Buna-N). It delivers outstanding resistance to mineral oil, lubricants and fuel, with good abrasion resistance and stable mechanical properties. Cost-effective for general industrial sealing. Suitable for static and low-speed dynamic sealing. We support custom shapes, sizes and hardness per your drawings or samples for automotive, hydraulic, pump & valve and general machinery sealing.
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