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This O-ring cord is made of Buna-nitrile (also called Buna-N), round in cross-section, has a durometer of 70A, and is designed for use in a wide variety of sealing applications.
Buna-nitrile can have high tensile strength, resistance to abrasion, tear, and compression set resistance. It is acceptable for temperature applications between -30 degrees F (-34 degrees C) to 250 degrees F (121 degrees C). It is compatible for use with petroleum, HFA, HFB, and HFC fluids, vegetable oil, alcohol, acids, and aliphatic hydrocarbons. Buna-nitrile is vulnerable to acetone, ethers, esters, ozone, sunlight, and weathering, and should therefore not be used in ozone-generating electric motors, welding equipment, or in applications with exposure to UV light.
This O-ring cord has a shore durometer of 70A. Shore durometer is the hardness of a material, and its resistance to permanent indentation. A higher durometer value indicates greater resistance to indentation on a scale of 0 to 100, with 100 indicating no indentation.
Timberline-Construction
Reviewed in the United States on August 7, 2024
The cord is exactly the size stated.I wish there were a wider selection of sizes as this was slightly too small for my use.
Mason W.
Reviewed in the United States on April 3, 2024
Seams to be a good product. I used it to make an o-ring to go in a propane conversion kit on a predator engine. No leaks so far after a few months of use
erick
Reviewed in the United States on June 1, 2021
Product as advertised and worked for me.
Ryan Paasch
Reviewed in the United States on May 7, 2018
these worked well
Jess Dale
Reviewed in the United States on April 27, 2017
Wrong size good quality
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