3M 06504 10.1 Oz Black Marine Adhesive Sealant 5200
3M 06504 10.1 Oz Black Marine Adhesive Sealant 5200
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3M 06504 10.1 Oz Black Marine Adhesive Sealant 5200

|10 ratings

Key item features

  • Robust Durability: This black sealant maintains extreme strength and flexibility both above and below the waterline, offering excellent resistance to weathering and saltwater.
  • Flexible Performance: A tough, flexible polyurethane that absorbs stress from vibration, shock, swelling, or shrinking, preventing cracks under dynamic force.
  • Versatile Application: Ideal for permanent bonding and sealing on RVs, boats, and other watercraft, suitable for wood, gelcoat, fiberglass, and metal.
  • Easy Handling: Applies directly from the container with a manual caulking gun, requiring no mixing and resisting sagging or flowing in vertical or horizontal seams.
  • Reliable Curing: Becomes tack-free in 48 hours, forming a firm, flexible, and waterproof seal for joints and boat hardware, recommended for interiors and below the waterline.
  • Extensive Usage: Perfect for bonding fiberglass deck to hull, wood to fiberglass, portholes, deck fittings, motors on transoms, hull seams, and various other marine joints.
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Specs

Industrial sealant type, MarineRec. use, WoodRecommended surface, MetalDry time, 48 hRec location, IndoorBrand, 3M

About this item

Product details

3M Marine Adhesive Sealant 5200 is a tough, flexible polyurethane for permanent bonding and sealing your RV, boat or other watercraft. It is ideal for use on wood, gelcoat, fiberglass, metal and more. It is recommended for interiors, below the waterline and any other places that are shielded from sunlight. It applies right from the container no mixing is required. It becomes tack-free in 48 hours, and cures to form a firm, flexible, waterproof seal on joints and boat hardware. Far more than a marine caulk, tough, flexible Marine Adhesive 5200 dissipates stress caused by vibration and shock, and wont crack under dynamic force. It resists salt water, wind, weather and temperature extremes for long periods of worry-free enjoyment on the water. In fact, for more than 50 years, 3M Marine Adhesive Sealant 5200 has been used and trusted as a marine sealant by professionals in some of the most demanding conditions on earth. 3M Marine Adhesive Sealant 5200 is extremely strong and retains its strength above or below water line. Stays flexible too - allows for structural movement. Has excellent resistance to weathering and salt water. Stress caused by shock, vibration, swelling or shrinking is effectively absorbed. Check the bonding and sealing jobs this product can handle for you: fiberglass deck to fiberglass hull, wood to fiberglass, portholes and deck fittings, motors on fiberglass transoms, under mouldings, hull seams above and below water line. Center board trunk joints. Between struts and planking. Stern joints. Deck housing, etc. Easy to apply with manual caulking gun. Won't sag or flow in vertical or horizontal seams. About 3M Industrial Adhesives and Tapes For more than a century, 3M has applied innovation and technology to improving our customers lives and supporting their business goals. Today the company, from its headquarters in St. Paul, Minnesota, serves industrial and commercial customers and consumers in nearly 200 countries. 3M Industrial Adhesives and Tapes include application-specific products that provide durability, strength, and special characteristics such as temperature resistance and short- and long-term protection. The 3M brand, across thousands of products, represents consistency, superior quality, and value.

3M Marine Adhesive Sealant 5200 is extremely strong and retains its strength above or below water line. Stays flexible too - allows for structural movement. Has excellent resistance to weathering and salt water.

Stress caused by shock, vibration, swelling or shrinking is effectively absorbed. Check the bonding and sealing jobs this product can handle for you: fiberglass deck to fiberglass hull, wood to fiberglass, portholes and deck fittings, motors on fiberglass transoms, under mouldings, hull seams above and below water line. Center board trunk joints. Between struts and planking. Stern joints. Deck housing, etc. Easy to apply with manual caulking gun. Won't sag or flow in vertical or horizontal seams.

About 3M Industrial Adhesives and Tapes

For more than a century, 3M has applied innovation and technology to improving our customers lives and supporting their business goals. Today the company, from its headquarters in St. Paul, Minnesota, serves industrial and commercial customers and consumers in nearly 200 countries. 3M Industrial Adhesives and Tapes include application-specific products that provide durability, strength, and special characteristics such as temperature resistance and short- and long-term protection. The 3M brand, across thousands of products,...

  • This black colored seal is extremely strong, retains its strength above or below the water line
  • Stays flexible
  • Has excellent resistance to weathering and salt water
  • A box sealing tape that can be custom printed to provide security and/or branding.
  • Carton sealing tape, box sealing tape and box closing tape.
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Specifications

Industrial sealant type

Marine

Rec. use

Wood

Recommended surface

Metal

Dry time

48 h

Warranty

Warranty information

N

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Customer ratings & reviews

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Showing 1-3 of 10 reviews

May 28, 2025
Reviewer name: Jason
Sold and shipped byBoating Store
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Super fast shipping and great product. Thanks!

Incentivized Review
Helpful?546LSVHON38821014886
Sep 1, 2026
Reviewer name: Christopher
Sold and shipped byCrimp Supply
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

stopped water from coming into my basement

I used this tube of 5200 on a pipe coming into my basement they cinder block. sealed if up perfect. no water gets in thru the pipe. thumbs up

Incentivized Review
Helpful?546LSVHON38821014886
Jun 15, 2026
Reviewer name: Margaret
Sold and shipped bySupply the Home
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Marine Adhesive Sealant 5200

This stuff is amazing; I use it to SEAL all kinds of things. From boating utensils to sealing the tires on my '86 FAT BOY HD. This stuff is the kick, easy to use and apply, just follow directions. Use to make sure things are sealed nice and tight.

Incentivized Review
Helpful?546LSVHON38821014886
Current price is $38.30
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