Custom Rubber Seals: Material, Size and Compliance Questions Answered

Start with the media, temperature, sealing purpose, and contact environment. NBR, Silicone, FKM, HNBR, EPDM, NR, and FFKM are listed material options. FKM is associated with chemical-resistant applications, while Silicone is used for food-grade and medical equipment applications. FFKM is presented for applications requiring high chemical resistance.

These material names do not replace an application review. The result can depend on the specific compound, washer design, contacting media, pressure, and temperature cycle. Specialized seals are listed across a temperature range of -60°C to 400°C, so send the actual operating range and conditions with the inquiry instead of applying that range to every seal.

For a machine enclosure, picture the washer seated between its mating surfaces during assembly. For a process line, identify every fluid that may contact the seal. Include those details when asking for a recommendation. You can also review the Custom Rubber Seal Washers product page when preparing the request.

Yes. Custom moulding, OEM, and ODM services are available, and the washer can be tailored to customer technical drawings. Sizing recommendations and design optimization are also available for custom rubber parts.

Send a drawing or CAD file when possible. Add the sealing location, mating-part dimensions, required quantity, material preference, hardness, color, and intended use. If you are replacing an existing washer, a sample and measured dimensions can help describe the part. Check the available installation space and the mating surfaces before requesting a size review.

The listed hardness range is 5 to 90 Shore A. Black is the standard color, and custom colors are available. Put the required hardness and color in the drawing or inquiry so the washer can be identified and specified consistently.

Hardness should be considered together with the sealing location and mating parts. A color request can help distinguish parts in an assembly, but it should be submitted as a separate specification from the material and hardness requirements.

Tell Shijiazhuang Beike Sealing Technology Co.,Ltd. which certificate, declaration, material requirement, or customer specification your purchasing process requires. The request should identify the exact rubber material, part design, intended application, and order or project scope. This gives the supplier the information needed to determine which documents apply to the specific seal.

Do not treat a material name, a general application description, or a temperature range as proof of compliance for a particular part. For food, medical, chemical, or other controlled applications, include the applicable use and documentation requirements in the inquiry so they can be reviewed for the selected compound and design.

Send the part drawing or sample, measured dimensions, sealing location, material or application requirements, hardness, color, quantity, and intended use. Include the contacting media and operating temperature when chemicals or heat are involved. For food or medical equipment, identify that use clearly. These details allow the washer size, material, and design requirements to be reviewed together.

The next step is to send the drawing or sample measurements, application conditions, color and hardness requirements, and quantity to Shijiazhuang Beike Sealing Technology Co.,Ltd. for review.