Oil-Resistant NBR Rubber Gaskets, Washers & O-Rings for Industrial Use
Looking for high-performance NBR rubber gaskets and washers that deliver exceptional oil resistance for your heavy machinery? Our premium oil-resistant nitrile seals, crafted from high-grade Nitrile Butadiene Rubber (NBR, also widely known as Buna-N rubber), are custom-engineered to meet the rigorous sealing demands of modern industrial fluid applications involving lubricants, fuel lines, and petroleum-based fluids. As a leading manufacturer of specialized rubber sealing components, Haiyixin offers a comprehensive inventory of nitrile rubber gaskets, metric NBR washers, and bespoke O-rings in diverse durometers, tight dimensional tolerances, and geometric profiles to fit your exact equipment needs.

Nitrile butadiene rubber (NBR) is a synthetic elastomer renowned for its outstanding hydrocarbon fuel resistance and physical durability. Our industrial nitrile seals maintain their optimal mechanical sealing force and structural integrity even when exposed to long-term submersion in engine oils, hydraulic oils, diesel fuels, and gasoline. Furthermore, our custom NBR rubber gaskets offer superior abrasion resistance, low compression set parameters, and robust temperature stability (-40°C to 120°C), providing a leak-free seal across volatile industrial environments.
We manufacture a diverse portfolio of standard-sized and fully customized nitrile rubber seals tailored to heavy industry需求:

Our industrial nitrile seals meet or exceed rigid global manufacturing criteria, fully complying with ISO 34-1 and ASTM D2000 specifications:
| Technical Parameter | Value Range Capability | Engineering Application Description |
|---|---|---|
| Material Formulation | Nitrile Butadiene Rubber (NBR / Buna-N), XNBR (Carboxylated Nitrile) | Premium synthetic compound engineered for elite oil, fat, and fuel seal efficiency. |
| Hardness (Durometer) | Shore A 60 - 90 | Completely customizable depending on system torque loads and compression limits. |
| Temperature Stability | -40°C to 120°C (Continuous) | Short-term peaks up to 150°C | Maintains elastomeric memory in high/low temperature mechanical environments. |
| Tensile Strength | ≥15 MPa | Ensures extreme durability and structural tear-resistance under fluid torque. |
| Elongation at Break | ≥300% | High elastic flexibility ensuring absolute seals on rough or non-uniform flange faces. |
| Compression Set | ≤30% (70°C, 22 hours) | Guarantees long-term dimensional sealing recovery, minimizing system downtime. |
| Primary Media Resistances | Petroleum oils, mineral grease, diesel, gasoline, hydraulic fluid, water | Note: Exhibits limited resistance against strong acids, ozone exposure, or polar solvents. |
| Compliance & Certifications | ISO 34-1, ASTM D2000, FDA 21 CFR 177.2600 Compliance | Meets strict public health, safety, and international manufacturing mandates. |

We provide comprehensive custom moulding for complex geometries that regular catalog components cannot solve. Simply supply your operating pressures, medium chemical profiles, CAD drawings, or physical samples, and our engineering sales division will optimize compound formulations and blueprint designs for your formal approval before mass compression production begins.
Q1: What is the main advantage of choosing NBR rubber gaskets over other elastomers?
A1: NBR (Buna-N) offers the most cost-effective and superior resistance to petroleum-based oils, grease, fuels, and hydraulic fluids. It provides exceptional mechanical sealing properties and abrasion resistance for engine and lubrication systems.
Q2: Can your custom nitrile rubber washers be manufactured for food-contact applications?
A2: Yes. We formulate specialized food-grade NBR rubber components that comply fully with FDA 21 CFR 177.2600 standards, making them entirely safe for processing machinery handling edible oils and fats.
Whether you require a standard batch of oil-resistant metric washers or a highly complex custom molded NBR profiles engineering run, Haiyixin is your reliable B2B partner. Reach out to our technical sales team today to send your specifications, request an obligation-free commercial quote, or apply for material prototyping samples.
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