14316 3M Marine Adhesive Sealant 4000 UV, Black, 295 ml Cartridge MMM-14316
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14316 3M Marine Adhesive Sealant 4000 UV, Black, 295 ml Cartridge MMM-14316

|15 ratings

Key item features

  • MULTI-PURPOSE MARINE SEALANT: This medium-strength marine sealant bonds portholes, deck fittings, rub rails, screw holes, and stanchion supports while still allowing disassembly
  • EXCELLENT UV RESISTANCE: A distinct ability to withstand the sun's rays allows it to excel in challenging outdoor industrial, transportation, and construction environments
  • COLOR STABLE: Maintains its color in applications above and below the water line
  • FLEXIBLE BONDS: Durable elastomeric adhesion maintains joint movement and withstands stress caused by shock, vibration, swelling and shrinking
  • PAINTABLE WHEN WET: Forms a skin in 30-60 minutes but can be painted over with water-based paints immediately after application

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2.1 out of 5 stars
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15 ratings15 reviews
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  1. 5 stars27% (4)
  2. 4 stars0% (0)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star73% (11)
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Showing 1-3 of 15 reviews

May 26, 2021
Reviewer name: SlideSped4000
5 out of 5 stars
5 out of 5 stars review

Daily use in our industry.

You see a lot of negative reviews on this product after people don't follow directions applying it. First off, it's meant to be flexible, secondly it needs time to cure. If you can figure out how to apply it you can figure out how to read the instructions; clean and prep your surface before applying.

Review from 3m.com
Helpful?4A04U06A9LVL821996570
Dec 11, 2019
Reviewer name: REMONE
5 out of 5 stars
5 out of 5 stars review

excellent product

We have used this stuff to seal in a wet, industrial environment for the last 2 years, Once it is set in place it does not leak or break loose like the silicone based sealers we have used in the past. It is difficult to get apart once set but that is great in my opinion its doing its job well.

Review from 3m.com
Helpful?4A04U06A9LVL821996570
Oct 30, 2022
Reviewer name: usernamesalltaken
5 out of 5 stars
5 out of 5 stars review

I'm impressed

Absolutely the best sealant on the market for [get this] "STEEL PIPE PLUMBING ( Water/Natural gas)"...No BS!!! I've been around a long time and have used everything else on the shelf...This stuff even seals water leaks from a bad teflon tape job without having to re-joint WHILE IT'S STILL LEAKING!

Review from 3m.com
Helpful?4A04U06A9LVL821996570
Current price is $36.64
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