70 Shore Black Oil Resistance NBR O Ring

1. Nitrile (Buna-N) is the most widely used elastomer due to its excellent resistance to petroleum products, operating temperature range (-40°F to +257°F) and one of the best performance-to-cost values. It's an ideal material for aerospace, automotive, propane and natural gas applications. Special Hydrogenated Nitrile (HNBR) compounds can improve resistance to direct ozone, sunlight, and weather exposure while increasing temperature range to +300°F.Hardness (Shore A): 40 to 90.

Limitations: Nitrile compounds are attached by small amounts of Ozone. Phthalate type plasticizers are commonly used in compounding Nitrile Rubber. These plasticizers can migrate out and cause problems with certain plastics. Also, new regulations on certain phthalates have limited their use.

2. Nitrile rubber is the general term for acrylonitrile butadiene terpolymer. The acrylonitrile content of nitrile sealing compounds varies considerably (18% to 50%) and influences the physical properties of the finished material.

The higher the acrylonitrile content, the better the resistance to oil and fuel. At the same time, elasticity and resistance to compression set is adversely affected. In view of these opposing realities, a compromise is often drawn, and a medium acrylonitrile content selected. Nitrile has good mechanical properties when compared with other elastomers and high wear resistance.

Both o-rings and gaskets can be made from Nitrile materials.

3. Names: Acrylonitrile-Butadienne, NBR, Buna-N, Nitrile

4. For small package, the o-rings could be transport by DHL, Fedx , TNT, etc. For big quantity, it could be transport by air or by sea .

Ningbo Robon Sealing CO.,LTD is a professional rubber products manufacturer in Ningbo, we produce various rubber products: rubber seal, rubber o ring ,ED ring, o ring cord, rubber flat washer, special parts and other rubber products.

The main material we used are NBR, EPDM, , FKM, AFLAS, CR, Butyl, HNBR, SILICON, FFKM, PU or approved by FDA, NSF, WRAS etc.

We have the most advanced vulkameter, hardness tester, projectors, image instrument,tensile testing machine, and other professional testing equipment.

Our company is located in Ningbo City, Zhejiang Province, P.R.China. Which is a seaport city with the most economic vitality near the east sea. North link to Shanghai by 2 hours drive, and East link to enjoy the most convenient Sea, Land and Air transportation advantages.

Robon has always been adhering to the service principle of " Quality is the top priority, fair price " to serve customers. The company bends itself to serve customers with competitive price, best quality, fast delivery and timely after-sales service. Welcome to contact us by email: info@rb-oring.com