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Product Details

3M 5200 is a one-part marine sealant that cures to form a firm, rubbery waterproof seal. When fully cured, this high strength adhesive remains flexible to resist vibration, swelling, shrinking, or shock.

This permanent adhesive is a strong solution for a variety of marine applications. Use 5200 marine sealant on wood, fiberglass, hardware, seams, joints, between struts, hull fittings, and planking stern joints. Bond or seal 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.

Choose from White, Black, Tan, and Mahogany for color. 10 oz cartridge shown. Additional sizes available for White and Black.

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 Sealant Adhesive

10 of 102 Reviews

July 10, 2024

Misleading
By cdiff from Castaic, CA

it's good product. the picture is misleading. you only get one tube. i would recommend to find it somewhere else.

Bottom Line No, I would not recommend to a friend

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May 25, 2023

yes
By Ray from Michigan

Verified Purchase

Around Here the mfg date is 1 to 2 years old, JD alway has sent new stock

Bottom Line Yes, I would recommend to a friend

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March 24, 2023

Used for metal to glass
By Mike from Connecticut

Verified Purchase

I purchased this 3M product and a final attempt to secure a window into a metal frame. It was a particularly hard job because the metal frame was only 36 inches long and one inches wide and had to support a window which was 24" x 36" and 3/8 inch thick. The window weighs 40 pounds so it seems like an impossible task for a glue to hold into that frame. However, it was done from the manufacturer 30 years ago and finally let loose I tried several of the 3M products as well as other brands with no success. This product has done the job.

Bottom Line Yes, I would recommend to a friend

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February 12, 2023

I would buy again
By Tom from Valley springs ca.

Verified Purchase

Excellent caulk.

Bottom Line Yes, I would recommend to a friend

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December 8, 2021

Will keep on returning to thi supplier
By Old Growth from Washougal, WA

Verified Purchase

Shipped a fine product right away. They were the only distrIbtor that had the color I wanted, tan.

Bottom Line Yes, I would recommend to a friend

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August 9, 2021

I have been using this product for many years
By Bill from Lancaster, NH

Verified Purchase

It is an excellent marine caulking/adhesive

Bottom Line Yes, I would recommend to a friend

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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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