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Product Details

3M 5200 is a single part sealant that cures to form a firm, rubbery waterproof seal. When fully cured, this high strength marine adhesive remains flexible and suitable for use where shock, vibration, shrinking or swelling are concerns.

Use 5200 on wood, fiberglass, hardware, motors, on fiberglass transoms, seams, joints, between struts, and planking stern joints. This permanent adhesive bonds and seals: fiberglass deck to hull, wood to fiberglass, portholes and deck fittings, motors on fiberglass transoms, under moldings, hull seams above and below water line, centerboard trunk joints, between struts and planking, stern joints and more.

Apply with a manual caulking gun. Sealant remains workable with a trowel or spatula for up to four hours, and won't sag or flow in vertical or horizontal seams.

10 oz cartridge shown. Choose Color & Cartridge Size.

Info & Guides
This high performance polyurethane adhesive sealant becomes tack-free in 24-48 hours, and completely cures in 5-7 days with no shrinking. The seal is extremely strong, retaining its strength above or below the waterline. 5200 stays flexible and allows for structural movement.

Consider using 5200 Fast Cure instead if the quickest possible cure rate is a consideration. It has slightly less tensile strength, but provides full cure in as little as 24 hours.

Reviews for 3M 5200 Marine Adhesive Sealant

10 of 96 Reviews

December 10, 2020

Helpful and Patient
By Dan from Newton MA

Verified Purchase

Rick, couldn't have been more patient and helpful with me. I really appreciate it! Dan

Bottom Line Yes, I would recommend to a friend

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April 23, 2020

It's proven, reliable, product of high quality
By Rich from Canadensis, Pa.

Verified Purchase

I'm rebuilding a boat, I use this to rebel bulkheads, stringers , floors etc. I also use it for through hull fittings.

Bottom Line Yes, I would recommend to a friend

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January 29, 2020

Great Product
By Hammer from Texas

Verified Purchase

Went on smooth gust make sure you uses all of it the first time the leftover we'll harden .

Bottom Line Yes, I would recommend to a friend

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December 9, 2019

Great Price and Quick ship!
By Golden Dome from Lexington, MI

Verified Purchase

Wow, happy with the product! Restoring a bottom on a 57 Chris Craft. Restorer assisting me wanted $70.00 more a case than originally quoted siting a price rise from his source. Jumped online and found Jamestown had the best price! Thanks!!

Bottoms Up!
Bottom Line Yes, I would recommend to a friend

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September 16, 2019

The Very Best
By Bobby Blue Alcohol Racer. from Lansing, Michigan

Verified Purchase

3M 5200 is the best since Bearcat body deadener from 1949. Sticks to anything, is strong, cures without shrinkage, & it's DURABLE. Thank you 3M. Don't like to thank mega corporations, but this stuff is fantastic! Nuff said.

Bottom Line Yes, I would recommend to a friend

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June 17, 2019

Used it for years
By Charlie from Galveston

Verified Purchase

Havent used it yet but will shortly to permanently mount some things like hatches.

Bottom Line Yes, I would recommend to a friend

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May 3, 2019

WHEN YOU NEED 5200 . . . NOTHING ELSE COMES CLOSE !
By GENE from ULSTER PARK, NEW YORK

Verified Purchase

I HAVE EVEN ANCHORED A TOILET BOWL TO A TILE FLOOR WHEN BOLTS WERE NOT AN OPTION . . . . THREE YEARS LATER STILL FLUSHING AND NO LEAKING. I JUST LOVE THE STUFF.

Bottom Line Yes, I would recommend to a friend

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April 15, 2019

yes
By Pickloe from la

Verified Purchase

on sealing parts on boats

Bottom Line Yes, I would recommend to a friend

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April 5, 2019

I would buy this product again.
By Alan from Spokane

Verified Purchase

Best price around especially if you buy in bulk.

Bottom Line Yes, I would recommend to a friend

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April 2, 2019

I would buy this product again
By Dave Anderson from Victorville Ca

Verified Purchase

New bottom on 22 Hackercraft

Bottom Line Yes, I would recommend to a friend

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