RubberMill’s stock 70 durometer (Shore A) precision ground nitrile balls are molded and then finished by a high-speed, accurate grinding process that eliminates the mold parting line and results in a smooth and uniform surface.
This process also provides the consistent, close diametrical and spherical dimensions that are required to produce an effective seal.

Typical uses include:

• Check valves
• Seals
• Bumpers
• Stops
• Flow Control Meters

• Other compounds and hardness are available and can be quoted upon request.

Minimums may apply.

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RubberMill maintains stock of high quality Clean Out Balls for delivery to North American customers. These orange color sponge rubber balls are also referred to as:

• Concrete Pump Clean-Out Balls
• Wiper Balls
• Cleaning Balls
• Blow-out Balls

They can be used to clean all types and sizes of pipes, tubes, casings and hoses in Industrial, Agricultural, Concrete/Plaster, and Well Drilling applications.

These balls are made with the best grade of natural rubber, using single-piece construction. The result is a superior product that delivers better performance over a longer period of time. Here’s what you can expect:

• Uniform density and cell structure
• Greater abrasion resistance
• Superior conformability
• Tighter dimensional accuracy

Alternative colors and sizes can be quoted upon request.  RubberMill can prepay and add UPS ground shipping charges to your order, or ship using your UPS account. Please provide your UPS account number for expedited shipping services.

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RubberMill supplies lab stoppers to North American distributors and large volume customers in the Laboratory, Medical, Scholastic, OEM, Paint - Finishing, Industrial and Recreational Products markets.
Our stock standard grade stoppers are manufactured from a premium grade SBR black rubber compound with a 1.342 specific gravity (they do not float in water). They have a temperature usage range of -40C to 70C. The 40 (+/-5) Durometer material is soft, pliable and long lasting. Solid, one-hole, and two-hole in sizes from #000 to #15 are available. Contact us for pricing on large volumes of custom compounds or colors.

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