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Black closed-cell Buna-N foam cord, 25 ft length, 1/8 in diameter, smooth round profile

Zoro Select

Zoro Select Foam Cord 25 ft 1/8 in Black

SKU CH-MXSG-RSKTQ

Closed-cell Buna-N foam cord, 25 ft long by 1/8 in diameter, resists oil, water and temperatures from -40 to 200 °F

  • ColorBlack
  • 25 ft length supplies long runs for sealing gaps
  • Buna-N material resists oil and chemicals in harsh environments
  • Closed-cell structure blocks water absorption for reliable insulation
  • Withstands -40 °F to 200 °F for extreme temperature stability
  • Meets ASTM D1056 2B3 grade for consistent quality assurance

Zoro Select Foam Cord 25 ft

This closed-cell Buna-N foam cord measures 25 ft in length with a 1/8 in diameter. It is supplied new in black and carries an ASTM D1056 2B3 grade standard. The material suits general-purpose sealing, cushioning and packing tasks in shipping or mailroom environments.

Check diameter and length requirements

Verify that a 1/8 in round profile fits the gap or channel you intend to fill. Confirm that the 25 ft roll provides sufficient length for the job without needing multiple pieces. The cord operates from -40 to 200 Degrees F, so ensure the application stays within this temperature window.

Thermals and compression performance

The foam withstands continuous exposure up to 200 Degrees F and remains flexible down to -40 Degrees F. Firmness at 25 percent deflection ranges from 9 to 13 psi, while tensile strength reaches 160 psi. Compression set is 22 percent, indicating moderate recovery after prolonged loading.

Highlights

  • 25 ft length supplies long runs for sealing gaps
  • Buna-N material resists oil and chemicals in harsh environments
  • Closed-cell structure blocks water absorption for reliable insulation
  • Withstands -40 °F to 200 °F for extreme temperature stability
  • Meets ASTM D1056 2B3 grade for consistent quality assurance

Specifications

BrandZORO SELECT
ColorBlack

Questions about this item

Does the foam cord arrive ready to use or do I need to buy any accessories?

The cord is supplied as a 25 ft length of 1/8 in diameter Buna-N foam; no extra parts or adhesives are included.

Should I choose a different diameter or length for a tighter seal?

This listing only offers the 1/8 in diameter in a 25 ft roll; other sizes would be separate items.

How well does the 160 psi tensile strength hold up when the cord is compressed in a machine?

At 25 % deflection the cord resists with 9 to 13 psi and recovers with only 22 % compression set, so it maintains sealing force under repeated loading.

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