3M Marine Adhesive Sealant 5200 Fast Cure - 3 oz., Watertight Bonding/Sealing of Fiberglass
3M Marine Adhesive Sealant 5200 Fast Cure - 3 oz., Watertight Bonding/Sealing of Fiberglass
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3M Marine Adhesive Sealant 5200 Fast Cure - 3 oz., Watertight Bonding/Sealing of Fiberglass

4.7 stars out of 41 reviews
(4.7)|
41 ratings

Key item features

  • Fast Cure: Tack-free in 1-2 hours and typically cures within 48 hours for quick and efficient bonding.
  • Strong Bonds: Tough and flexible polyurethane polymer forms durable bonds that withstand vibration, swelling, shrinking, and shock.
  • Moisture-Curing: Chemically reacts with moisture to provide strong, flexible bonds above or below the waterline.
  • Versatile Use: Ideal for bonding aluminum, wood, gelcoat, and fiberglass in marine environments.
  • Recommended Applications: Suitable for fiberglass deck to hull, through hull fittings, wood to fiberglass, portholes, deck fittings, motors on fiberglass transoms, under moldings, and hull seams above and below the waterline.
  • Permanent Bonding: One-component, high-strength adhesive designed for permanent bonding and sealing in marine applications.
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Current price is $17.50$5.83/fl oz
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3M Marine Adhesive Sealant 5200 Fast Cure - 3 oz., Watertight Bonding/Sealing of Fiberglass $17.50 $5.83/fl oz

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Customer ratings & reviews

4.7 out of 5 stars
stars41 ratings25 reviews
How item rating is calculated
  1. 5 stars80% (33)
  2. 4 stars15% (6)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star5% (2)

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Showing 1-3 of 25 reviews

May 15, 2025
Naz08
Item details
Size: 3 oz
Sold and shipped byPeak Adhesive Tape & Supplies
5 out of 5 stars review

Verified Purchase

So far so good ,Great stuff!

Used to re seal true spoke wheels. It spread easy,set up quickly. Took a few days to cure, even with a low speed fan near by to keep air moving .so far so good. Tires installed.No leaks. Looking forward to the Real test ,in a few weeks ,at the road rally.🏁🛞

Incentivized Review
Helpful?4NZCM77OV78921014810
Jul 25, 2025
Steven
Item details
Size: 3 oz
5 out of 5 stars review

Verified Purchase

A littl a little bit hard to work with, but seems to have done the job cured in 24 hours. Be careful not to get it on your shirt like I did.

Incentivized Review
Helpful?4NZCM77OV78921014810
Aug 25, 2017
Gary
5 out of 5 stars review

Seller Verified Purchase

When needing an under-the-waterline sealant I'll use this

I used it to seal the strut and tracking fin to my ski boat. I haven't taken the boat into the water yet but as far as I can tell the sealant cured great and is gonna work fine. The thing that worried me, is that the package states it must be used within 24 hrs of breaking the metal seal. I haven't tried to use any of it beyond 24 hrs so even though I capped the tube and put it in a ziplock bag I don't know if the resf if the tube cured and is no longer usable. [This review was collected as part of a promotion.]

Review from zoro.com
Helpful?4NZCM77OV78921014810