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  6. 3M™ Marine Adhesive Sealant 5200, PN06502, Mahogany, 295 mL Cartridge, 12/Case

3M™ Marine Adhesive Sealant 5200, PN06502, Mahogany, 295 mL Cartridge, 12/Case

Part Number 065023M ID 70000457783M Product Number 5200UPC 00051135065020
  • Permanent bonding – above and below the waterline
  • Industry standard for over 50 years
  • Offers extended working time
  • Achieves handling strength in 48 hours
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For industrial/occupational use only. Not for consumer sale or use.
  • Permanent bonding – above and below the waterline
  • Industry standard for over 50 years
  • Offers extended working time
  • Achieves handling strength in 48 hours
  • Tough and flexible polyurethane polymer forms strong bonds
  • Capable of retaining strong bonds during vibration, swelling, shrinking or shock

3M™ Marine Adhesive Sealant 5200 is a one-component, high-strength, moisture-curing, gap-filling polyurethane for permanent bonding of wood, gelcoat and fiberglass. It cures to form a firm, rubbery, waterproof seal on joints and boat hardware, above and below the waterline. This product has been trusted throughout the marine industry for over 50 years.

3M™ Marine Adhesive Sealant 5200 offers permanent adhesion to wood, gelcoat and fiberglass.
Available in many colors to meet aesthetic needs
Tough and Flexible to Form Strong Bonds
Forming watertight seals, 3M™ Marine Adhesive Sealant 5200 (PDF, 35.41 Kb) offers permanent adhesion to wood, gelcoat and fiberglass. In addition, our marine adhesive sealant is flexible and allows for structural movement and dissipation of stress that may be caused by vibration, swelling, shrinking or shock. Available in both cartridge and sausage packs to meet your application requirements.

Recommended Applications
  • Fiberglass deck to hull
  • Through hull fittings
  • Wood to fiberglass
  • Portholes and deck fittings
  • Motors on fiberglass transoms
  • Under moldings
  • Hull seams above and below water line
  • Deck housing

Combats Vibrations, Swelling, Shrinking and Shock
3M™ Marine Adhesive Sealant 5200 is designed to meet the high demands of the marine environment, making it ideal for creating tough bonds resistant to saltwater and weathering. We formulated our sealant to provide an exceptionally strong solution for marine conditions as well as flexibility that combats vibrations, swelling, shrinking or shock. Once again, despite the barriers of a rough marine environment, 3M looked to science to provide a reliable, durable solution.

3M Manual Applicator
Designed to Endure Marine Environments
3M™ Marine Adhesive Sealant 5200 (PDF, 6.73 Mb) is a part of our broad range of adhesive sealants uniquely formulated for the marine market. Designed for reliable performance, 3M Marine Adhesive Sealant 5200 is the most trusted sealant in the industry for permanent, high strength bonding.

3M™ Marine Adhesive Sealant 5200 is a part of our broad range of adhesive sealants uniquely formulated for the marine market.
Choose a 3M Pneumatic Applicator for ergonomic applications
Understanding Polyurethane Sealants
Polyurethane sealants provide strong, flexible durable elastomeric bonds that seal against the elements. These sealants excel in challenging industrial, transportation and construction applications. Polyurethane sealants are available in a wide variety of Shore A hardness, open time and colors to meet many application needs. Choose a 3M Manual or Pneumatic Applicator for dispensing 3M adhesives sealant cartridges and 400ml/600ml sausage packs.

Bringing Better Ideas to the Surface through Science and Innovation
In our 3M Industrial Adhesives and Tapes Division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.

Click here for more information on 3M™ Adhesive Sealants. (PDF, 797.43 Kb)

Customer Reviews
3M™ Marine Adhesive Sealant 5200, PN06502, Mahogany, 295 mL Cartridge, 12/Case is rated 3.7 out of 5 by 14.
Rated 1 out of 5 by from nozzles are bad I have used 5200 for over 40 yrs. It has been a good product. As of lately the quality of the packaging (the nozzle) has gone down the toilet. The nozzles won't tighten and either pop off or leak around the flange. Its hard enough to not get the stuff all over the place ---I'm paying over twenty dollars a tube for a product that the 3m engineers can't seem to figure out how to package.. Here's a hint guys----turn to the right -makes things tight
Date published: 2021-11-09
Rated 5 out of 5 by from many apps ive used on boats for years,dont recomend this its true,1 ton van had a flat tire a split in the side wall ,no spare ,no jack ,no wrench, worth a try and had time ,put 5200 on hole let dry for a few days put second glob on let dry few days,put about half psi in tire after a day still holding.drove to tire shop for new tire ,guys at shop asked what is that stuff.
Date published: 2019-11-26
Rated 1 out of 5 by from Very poor. Tried it on my bilge pump. Wasted my money. Won't happen again.
Date published: 2019-09-06
Rated 1 out of 5 by from Definately not permanent I used the 5200 to permanently adhere a starboard block to my bassboat transon to mount my side imaging tranducer in order not to drill holes in my transom. The fiberglas was properly prepped. The starboard mounting side is very rough and has a waffle pattern to proper adhesion. This weekend the starboard block pulled off the boat and the transom cable was cut by the prop. $200 transducer gone. The 5200 is still on the boat with the waffle pattern eposed. The fiberglas was properly prepped since the 5200 is still in tact on the transom. Very disappointing and very costly. I'll add a photo.
Date published: 2019-07-29
Rated 3 out of 5 by from Slow Cure Under Low Humidity Delayed Project I purchased a 10-ounce tube of 5200 Marine Adhesive to seal the gap between a stainless steel pipe fitting attached to a through-hole on a galvanized container and a layer of fiberglass separated by an insulating layer of polystyrene foam. After considerable research, I chose the 5200 Marine Adhesive because it was one of the few that would withstand continuous exposure to water. The instructions stated that it would become tacky after 24 hours and cure completely in five days. Well, seven days later and the sealant was barely tacky and far from cured. I checked the manufacture date on the tube and found that it was only 3 months old. Next, I called the 3M helpline and soon determined that because it had been one of those typical southern California summer weeks where the temperature in the workshop hovered in the mid-nineties and relative humidity was less than 20%, there hadn't been sufficient moisture to effect a complete cure. I spritzed it with a bit of water and checked back the next day - sure enough, it seemed to be setting up somewhat. However, I'd already lost a week waiting for the sealant to solidify and couldn't wait around for another week, so I decided to encase everything using additional fiberglass with a short length of pipe to decouple the inner and outer layers. Fingers crossed, I hope this works.
Date published: 2018-09-26
Rated 5 out of 5 by from Great sealant for pond and submersible pumps I sealed the gaskets between thick epdm liner and skimmer and overflow unit of my pond with 5200, perfecto ! Additionally, I sealed the internal and external gasket of a (supposedly) submersible pumpS that let introduce small amount of water into it (and destroyed the motor after some time). 5200 (you need to be patient) is the best adhesive tested, regarding other glues. And because it has some flexibility, it's better than epoxy in case of vibrations. And the seal is kept OK even in the winter (Quebec = -30 celsius), embedded in strong ice.
Date published: 2018-09-22
Rated 5 out of 5 by from Literally the best sealant I've used 5200 for a number of applications, the most critical of which was for the installation of two large brass port hole windows on a house. This was in an area that is bordered by the ocean on one side and the bay on the other. The windows were mounted with 21 lag bolts and flashed/sealed with 5200. Created an absolutely water and wind proof seal as well as adding some additional structural strength. Yes, it's pricey but it's also necessary when dealing with critical installations.
Date published: 2018-07-23
Rated 5 out of 5 by from No-brainer for inflatable boat repair Tried this after reading some great reviews in various dingy forums re: transom repairs, specifically reattaching the PVC flooring where it meets the transom. PVC giue won’t stick to wood, but hypalon glue will, yadda yadda yadda. Tried it, didn’t work like previous PVC repairs. Enter the 5200. Not only did it stick the PVC fabric to the wood but it held like iron, and I have enjoyed many many hours in a boat that was destined for the nearest dumpster box.
Date published: 2018-04-09
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For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.