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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.
One Bone
2025-08-25 20:25:04
I have front wheel drive that requires waterproof grease in the hubs.I tried an air pump, but it is not that good.Hand pumping is a pain, so now I have some relief from all that pumping.
Joe Consumer
2025-08-21 14:01:10
I bought this hoping to use it as a weather seal for the lid of a Pelican case. The size is perfect, but it's not squishy enough to be able to use it for what I wanted - the lid will not close with the seal in place. Don't get me wrong, that's my bad, hence the 5 stars because the product is exactly what the seller says it is and it will work great for that. For anyone else looking for Pelican case seals, I learned in the process that Pelican will give you a new seal for just the cost of shipping, so if you are looking cord for that purpose, reach out to them instead.
Customer
2025-08-09 10:20:32
I got this to replace deck hatch gaskets on my boat. The price of OEM gaskets is ridiculous. For a fraction of the cost and a little superglue you can make perfect gaskets that last. I made a simple guillotine tool to get a clean cut and they glue and fit perfectly.
SciR0x
2025-07-05 10:24:53
Used this to fill the 2 mm gap between the gas range and the granite counter top. Works perfectly!
Stanley W.
2025-06-08 16:40:53
Installed OK to replace a seal in an old all weather case.
Eric
2025-06-06 18:22:41
No flashing meant this was great and really easy to glue into o rings for my purpose. Would purchase again.
michael armstrong
2025-05-29 17:34:04
I used it to make a gasket for an igloo cooler. I glued a double width inside the cover. Works great.
Mason W.
2025-05-12 14:52:36
To lage for what I needed at the time but still a good product to have on the shelf.
DaCous
2025-04-16 14:29:24
The quality of this product was pretty standard and it works fine for making custom o-ring sizes. Convenient to be able to buy on Amazon at a fair price.
Arpix
2025-04-08 20:05:30
Nothing more to add, will using it to make seals and it's what I was looking for
Kitchen Panda
2025-03-29 12:34:08
Bought this to replace a failed o-ring on the mother-in-law's stick vacuum. It fit the space perfectly and keeps the air from leaking in around the dust cup. Now, if I could only find a second project to use up the leftovers....
Adam K
2025-03-22 15:11:53
Good value for the money, nice to be able to choose the desire diameter
D. Plourde
2025-02-04 10:46:43
I bought 0.125" and 0.103" cords.0.125" cord has exactly 0.125"0.103" measures 0.120"
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