Skip to content Skip to navigation menu

3M 5200 Polyurethane Adhesive/Sealant

Tenacious bonds and watertight seals above or below waterline

Provides exceptionally strong adhesion, yet stays flexible after it cures; may be used above or below the waterline. Ideal for underwater thru-hull fittings, hull-to-deck joints, portholes and bonding wood to fiberglass. Goes on smoothly, won't sag, and remains workable up to four hours. Cures in 5-7 days with no shrinking.

  • Formulation: One-part polyurethane adhesive/sealant
  • Recommended Usage: Permanent bonding, above and below water. Extremely strong and flexible
  • Material Incompatibilities: Plastics (ABS, Lexan)
  • Cure Time: Tack free: 48 hrs; complete cure: 5-7 days; moisture activated cure
  • Cleanup: Mineral spirits or kerosene
  • Removal: Mechanical removal
  • Tensile strength: 700psi
Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
5200 Polyurethane Adhesive/Sealant, White, 3oz. 390591 05203
In stock online.

$13.99

5200 Polyurethane Adhesive/Sealant, Black, 3oz 124778 05205
In stock online.

$14.99

5200 Polyurethane Adhesive/Sealant, White, 1oz. 124786 05206
In stock online.

$10.99

5200 Polyurethane Adhesive/Sealant, White, 10oz. 158485 06500
In stock online.

$14.99

5200 Polyurethane Adhesive/Sealant, Tan, 10oz. 227538 06501
In stock online.

$19.99

5200 Polyurethane Adhesive/Sealant, Mahogany, 10oz. 227546 06502
In stock online.

$19.99

5200 Polyurethane Adhesive/Sealant, Black, 10oz. 540922 06504
In stock online.

$19.99

Product Description

Tenacious bonds and watertight seals above or below waterline

Provides exceptionally strong adhesion, yet stays flexible after it cures; may be used above or below the waterline. Ideal for underwater thru-hull fittings, hull-to-deck joints, portholes and bonding wood to fiberglass. Goes on smoothly, won't sag, and remains workable up to four hours. Cures in 5-7 days with no shrinking.

  • Formulation: One-part polyurethane adhesive/sealant
  • Recommended Usage: Permanent bonding, above and below water. Extremely strong and flexible
  • Material Incompatibilities: Plastics (ABS, Lexan)
  • Cure Time: Tack free: 48 hrs; complete cure: 5-7 days; moisture activated cure
  • Cleanup: Mineral spirits or kerosene
  • Removal: Mechanical removal
  • Tensile strength: 700psi

Specs

West Advisor

The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.

REVIEW SNAPSHOT®

by PowerReviews
3M5200 Polyurethane Adhesive/Sealant
 
4.3

(based on 28 reviews)

Ratings Distribution

  • 5 Stars

     

    (18)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (3)

85%

of respondents would recommend this to a friend.

Pros

  • Easy to use (19)
  • Weather proof (17)
  • Protects well (8)
  • Visually pleasing (8)
  • Lightweight (3)

Cons

  • Messy (8)
  • Difficult to use (4)

Best Uses

  • Outdoors (12)
  • Quick fix (5)
  • Indoor (4)
  • Outdoor amusement (4)
    • Reviewer Profile:
    • Advanced (9), Professional (3)

Most Liked Positive Review

 

Lasted 3 days after opening

Over the years I have used several brands of marine sealents and bonding agents. This product hands down is the most reliable and all around useful product I have ever used. I found a...Read complete review

Over the years I have used several brands of marine sealents and bonding agents. This product hands down is the most reliable and all around useful product I have ever used. I found a great way to get the full use out of a large tube of 5200. Simply take it out of the caulking gun after its original use. Wrap kitchen use plastic wrap around the tip and stick it in the freezer. Its as simple as that. I have had one tube last up to 3 days after multiple uses.

VS

Most Liked Negative Review

 

Doesn't work on Seams

I have used 5200 to bond and seal thry haul fittings and had good reuslts. Last spring I used it to re-caulk my Mahoghany toe rail to the fibreglass. Uncovered the boat this Spring...Read complete review

I have used 5200 to bond and seal thry haul fittings and had good reuslts. Last spring I used it to re-caulk my Mahoghany toe rail to the fibreglass. Uncovered the boat this Spring and the 5200 was all cracked, exposing the Seam. 5200 sticks to both wood and fibreglass but elasticity properties are poor. Used Boatlife caulk on part of the job and the seam is still sealed, no cracks.

Reviewed by 28 customers

Sort by

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

great product

By bob

from saint james ny

Verified Buyer

Pros

  • Comfortable Grip
  • Easy To Use
  • Lightweight
  • Solid Construction
  • Weather Resistant

Cons

    Best Uses

      Comments about 5200 Polyurethane Adhesive/Sealant:

      my son and I are a restoring a 45 years old Bristol 30 foot sailboat
      we used it to reseat the deck to hull
      we use it to seal the toe rail
      when we took the old 5200 out it was still pliable
      great product

       
      4.0

      Great product by 3M

      By Mark

      from Henderson, NV

      Verified Buyer

      Pros

      • Easy To Use
      • Weather Resistant

      Cons

        Best Uses

          Comments about 5200 Polyurethane Adhesive/Sealant:

          I should have purchased the Quick Cure but this worked as intended and took our boat out while still a little tacky but no leaks

           
          5.0

          Best on market

          By Matt

          from Bowling green ky

          About Me Professional Landscaper

          Verified Buyer

          Pros

          • Weather Resistant

          Cons

            Best Uses

            • Outdoor Amusement

            Comments about 5200 Polyurethane Adhesive/Sealant:

            Use this stuff on any thing under water with no worries!

             
            5.0

            5200

            By ray

            from morehead city nc

            Verified Buyer

            Pros

            • Easy To Use

            Cons

              Best Uses

              • Outdoor Amusement

              Comments about 5200 Polyurethane Adhesive/Sealant:

              Does what it says.

              (1 of 1 customers found this review helpful)

               
              4.0

              OK

              By Captain John

              from Chesapeake Bay, Maryland

              Verified Buyer

              Pros

              • generally very effective

              Cons

                Best Uses

                  Comments about 5200 Polyurethane Adhesive/Sealant:

                  product seemed too thick; usually a sign of aging product. Was, however, able to use it successfully

                   
                  5.0

                  Good stuff

                  By BB

                  from Florida

                  About Me Getting Started

                  Verified Buyer

                  Pros

                  • Easy To Use
                  • Weather Resistant

                  Cons

                    Best Uses

                    • As a sealer for thru hull

                    Comments about 5200 Polyurethane Adhesive/Sealant:

                    What can I say but it's great! Good bonding and sealing

                     
                    4.0

                    leak in a boat is not good

                    By captron007

                    from toledo

                    Verified Buyer

                    Pros

                    • Easy To Use
                    • great stuff sealed leak

                    Cons

                      Best Uses

                        Comments about 5200 Polyurethane Adhesive/Sealant:

                        Only thing I'm using from now on seals great

                         
                        5.0

                        It works!

                        By DGK721

                        from Pensacola, FL

                        Verified Buyer

                        Pros

                        • Easy To Use
                        • Lightweight
                        • Solid Construction
                        • Weather Resistant

                        Cons

                          Best Uses

                          • Boat Repairs

                          Comments about 5200 Polyurethane Adhesive/Sealant:

                          This was perfect for the minor boat repair. Sealed perfectly and resists water.

                          (0 of 1 customers found this review helpful)

                           
                          1.0

                          You Suck over priced sub for np1

                          By nonya

                          from usa

                          Verified Buyer

                          Pros

                            Cons

                            • Deteriorates
                            • Difficult to Use

                            Best Uses

                              Comments about 5200 Polyurethane Adhesive/Sealant:

                              west marine is overpiced on everything

                               
                              5.0

                              Best sealant ever made for boats.

                              By Groundsman landscape

                              from Jacksonville

                              About Me Professional Landscaper

                              Verified Buyer

                              Pros

                              • Comfortable Grip
                              • Easy To Use
                              • Lightweight
                              • Solid Construction
                              • Weather Resistant

                              Cons

                                Best Uses

                                • Outdoor Amusement

                                Comments about 5200 Polyurethane Adhesive/Sealant:

                                Used to fill previous drill marks on my boat worked perfectly

                                Displaying reviews 1-10

                                Back to top

                                Previous | Next »

                                PRODUCT QUESTIONS
                                1 (800) 262-8464