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3M

3M Marine Adhesive Sealant 5200 (05203) Permanent Bonding and Sealing for Boats and RVs Above and Below the Waterline Waterproof Repair, White, 3 fl oz Tube

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, May 25
Order within 8 hours and 47 minutes
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Color: White


Size: 3 fl oz


Features

  • USE WHAT THE PROS USE Extremely strong adhesive sealant retains strength above or below waterline
  • BONDS PERMANENTLY Ideal for sealing, bonding and attaching on the interiors of boats and RVs, or on exteriors below the waterline and where shielded from the sun
  • LONG LASTING FORMULA Tough polyurethane polymer resists weathering and salt water
  • WONT CRACK OR PEEL Stays flexible, retaining strong bonds even during vibration, structural movement or shock
  • EASY TO APPLY Adhesive sealant requires no mixing, cures completely in 5-7 days
  • For industrial/occupational use only. Not for consumer sale or use

Description

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 won’t crack under dynamic force. It resists saltwater, 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. 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.

Material: Plastic


Brand: 3M


Style: 5200


Item Weight: 0.14 Kilograms


Item dimensions L x W x H: 2 x 5 x 9 inches


Brand Name: 3M


Unit Count: 3.0 Fluid Ounces


Number of Items: 1


Part Number:


Model: 5203


Item Type Name: 3M Marine Adhesive Sealant 5200 (05203) – Permanent Bonding and Sealing for Boats and RVs – White – 3 Ounces


Manufacturer: 3M


Included Components: ADHESIVE SEALANT


Water Resistance Level: Waterproof


Item Form: Paste


Compatible Material: Fiberglass, Wood


Item Weight: 0.14 Kilograms


Item Dimensions: 2 x 5 x 9 inches


Style Name: 5200


Color: White


Material Type: Plastic


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great Stuff if You Know What It Is
Color: Black Size: 3 fl oz Pattern Name: Adhesive Sealant
3M Marine 5200 is very much a marine industry standard -- for a reason. It does what it does very well, but don't order this unless you know exactly what that is. It's a "sealant" that takes a full 48 hours to cure... and once it does cure, congratulations, whatever you used it on better be something you want to stay put forever-ish. It's also a "use it or lose it" $20 tube. Open it -- and consider anything you leave in the tube as toast. You're not just going to stick a nail in the tip like it's RTV and use it later. It's also fussy about how you prep the mating surfaces. Acetone? Perfect. Alcohol? Congrats, it will never set. Never. READ THE LABEL. ... show more
Reviewed in the United States on April 6, 2025 by Basil Margherita
    • Expensive but did the job on my pool
Color: White Size: 10 fl oz Pattern Name: Adhesive Sealant
I used this to seal under the stone around the periphery of my pool, and it worked great for that purpose. I liked that it was also sealed on the non tip end to prevent premature drying of the tube.
Reviewed in the United States on January 6, 2025 by braxtonw
    • When they say permanent, they mean permanent!
Color: Black Size: 10 fl oz Pattern Name: Adhesive Sealant
This adhesive is crazy. I wouldn't use it on anything you do not want to be PERMANENT. We replaced our propane fridge in the RV with a Residential fridge. I used this adhesive to glue metal L brackets to the top, and small Wood spacers on the bottom. It took forever to cure (7 days..) but it is NOT coming off. In retrospect, I think I should have bought the "fast cure" version. ... show more
Reviewed in the United States on March 5, 2025 by Bianca
    • Excellent bond of wood to fiberglass
Color: White Size: 10 fl oz Pattern Name: Adhesive Sealant
I'm using this to put a ceiling in a fiberglass top RV, and I needed a way to bond the wood supports to the ceiling and side of the van. I used this adhesive in combination with deck screws to hold the ceiling supports up to the roof, and the results were so good I used the adhesive by itself to put my supports on the side of the van. After a day, those were on pretty solid, but I'm letting them cure a full 7 days before building the van out further. I chose this adhesive because it has greater flexibility than epoxy which is an important consideration when you're banging down dirt roads in an RV. And while the contact patch I'm securing to the fiberglass is not all that great and the weight it will carry is minimal, I figure all other things being equal it was better to go with the more flexible option. I only used a small amount on the ceiling, and my side walls didn't go up for another week, so I put the tub in a plastic bag in order to keep the adhesive from setting. That worked like a champ, and I was able to save about 20 bucks by not having to toss the majority of the adhesive away. ... show more
Reviewed in the United States on September 15, 2022 by Kevin Stillwagon
    • The absolute best adhesive/sealant on the market !
Color: Black Size: 10 fl oz Pattern Name: Adhesive Sealant
Very good sealant / 1 problem plastic nozzle was missing .? Would have been 5 stars ⭐️ if nozzle was included.
Reviewed in the United States on October 15, 2024 by Thomas Cooner
    • If you actually seal the end with packing tape or one of those caps it will keep for easily a week or more if it's out of the ..
Color: White Size: 10 fl oz Pattern Name: Adhesive Sealant
I bought this for some through hull fittings on my jon boat. And to permanently fill some holes in the live wells (the guys before me cut speaker holes in each 40 gallon live well. I was able to glue a .080" piece of aluminum to the inside of the live well to block the holes. I used some duct tape to hold the plates in place while this set up, it has a surprisingly long set up time, it was still moldable even a couple hours later. This means two things, first it's able to flow into all the little cavities if you were using it to fill a fiberglass/wood hole, second it means you have to kind of watch it if you fill a holes that vertical (like I did) because you have to go back and make sure the adhesive hasn't run out of the hole. It's less viscous than a bathroom caulk but more viscous than a wood glue. It also says on the side of the bottle that you have to use the tube within 24 hours of opening the seal on the back. I want to let you know this just isn't true. If you actually seal the end with packing tape or one of those caps it will keep for easily a week or more if it's out of the sun and heat. I set up everything I wanted to use this for at the same time, glued everything, didn't use as much as I had expected. Came back a couple days later found something else and used it again. 2 weeks later found one more thing to use it for and it was still very usable. I don't know how long it would have kept but it made it through my project, and easily lasted 2 weeks if I resealed the tip of it each time (I didn't seal the back where the plunger goes. ... show more
Reviewed in the United States on May 16, 2016 by John Patrick
    • Very good
Color: White Size: 10 fl oz Pattern Name: Adhesive Sealant
Very good
Reviewed in the United States on April 13, 2025 by Donnell Schweitzer
    • No Nozzles at all.
Color: White Size: 10 fl oz Pattern Name: Adhesive Sealant
Review Image by HH HH
Great product, I have used over 50... But, of little use if shipped without a nozzle. I ordered 2 mahogany and 3 white cartridges and received only one nozzle. Packaging was lousey. Just thrown in a box with a little craft paper. This is very expensive caulk and heavy. Both orders in one package (5 tubes) were loose and banging around. There is a place for the nozzle around the neck of the opening, there was just one loose amongst the tubes and craft paper. ... show more
Reviewed in the United States on March 9, 2025 by HH HH

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