5/16" Neoprene EPDM Bonded Sealing Washer - Stainless Steel 18-8

Marsoni

M251S

$12.39

Get it in 3 business days with 1 day shipping. Friday, May 29

5/16" Neoprene EPDM Bonded Sealing Washer - Stainless Steel 18-8Product Details : 5 16" Neoprene EPDM Bonded Sealing Washer Stainless Steel 18 8 Product Type: Neoprene EPDM Bonded Sealing Washer Bolt Diameter Size: 5 16" Outside Diameter: 3 4" Inside Diameter: 0. 325 to 0. 345 in Thickness: 0. 028 to 0. 035 in System of Measurement: Imperial Temperature Range Minimum: 40 F Temperature Range Maximum: 250 F Material(s): Stainless Steel 18 8 For any information about products, please contact us. *Photos for reference

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This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ. Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that. Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.

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Reviewed in the United States on April 26, 2025

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Harvey

Los Angeles, US

★★★★★ 5

Good stuff, but watch the temp

Model: NewSLS50_52

I used this in my single cab pickup truck (89 ford.) It only took half the box (10 sheets or 25 square feet) to do the floors, but I bought the big box because I plan to do the doors, back wall, and maybe the roof as well. One thing I learned is that the temperature matters when you’re doing the installation. It was around 55F when I started in the evening, and when it dipped down into the 40s the sheets would not stick to the metal, and were hard to compress with the roller. That’s why I ended up only doing the floors and not any vertical surfaces; i will have to wait for a nice hot day. The other thing is that the foil layer on top is razor sharp at the edges, definitely wear gloves! I didn’t notice until after but I have little papercuts all over my fingers. Aside from those things, the install was easy and straightforward. The sheets cut easily with scissors, and any goo that ends up on your hands or scissors can be cleaned up with acetone (nail polish remover), or lacquer thinner. I would use this stuff again.

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Reviewed in the United States on November 16, 2023

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Lyrah

Massapequa, US

★★★★★ 5

Very efficient!

Model: NewSLS50_52

Amazing the difference it makes on dumping the noise. Very easy to install. Pell and stick literally! Great!

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Reviewed in the United States on November 23, 2025

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