Free shipping on orders over $99.99! Don't miss out!
$12.33 In Stock
3M 5200 Fast Cure Marine Sealant
$12.33In Stock
3m 5200 Fast Cure Sealant
Ask a Question
4.3
Based on 8 Reviews
  • 5 Star

    63%

  • 4 Star

    25%

  • 3 Star

    0%

  • 2 Star

    0%

  • 1 Star

    13%

3M 5200 Fast Cure Marine Sealant Customer Questions and Answers

10 of 33 Questions

Question

Can this product be used to seal around a line entering my swimming pool, it will be under water all the time? Thanks, Ed

Asked on 08/02/2015 by Ed Gemberling

Top Answer

Ed, I am not sure, You would need to investigate whether the 5200 can with stand the chemical of the pool environment. I have used water proof tape before for my pool, it has foam with aluminum covering.

Answered on 08/04/2015 by JOHN PATELLA
See More Answers (5)

Answer

This product is used to seal the hydrophone thru the hull of my boat. The boat is in the water docked for 3 to 5 months each summer and cruises about 35 miles an hour. If your pool goes faster than 35 Mph, maybe not...

Answered on 08/02/2015 by CARL LYONS

Answer

It worked great for me. Had to drain inground pool to below the stairs. Then applied the 5200 sealant, let sit for a day and then filled pool back. No more leaks. Over two years now. Great product. Regards, Mike

Answered on 08/03/2015 by MICHAEL REYNOLDS

Answer

I have only used it to bond fiberglass panels to fiberglass or plastic. I believe it is good for bonding plastic or fiberglass to wood as well. I am not sure about it bonding to metal or cement. You might want to check on that with 3M.

Answered on 08/03/2015 by THOMAS SWEITZER

Answer

yes 3M 5200 fast cure works below or above the water and will not loose it's adhesion properties or shrink

Answered on 08/02/2015 by JERRY SCIACCHITANO

Answer

5200 is great for under water use. It's an amazingly strong adhesive so don't use it for anything that you will eventually want to separate

Answered on 08/02/2015 by MARC SALAVA
Answer Question

Question

Is there anything that can be used to remove this glue?

Asked on 08/18/2014 by Undisclosed

Top Answer

I don't have a clue.

Answered on 08/19/2014 by Charles Burns
See More Answers (5)

Answer

Heat.

Answered on 08/18/2014 by JOHN MAGLIO

Answer

A lot of elbow grease. I used a razor blade to scrape it as thin as possible then used goo be gone.

Answered on 08/18/2014 by John VanGeertruy

Answer

I do not know for sure, but generally 5200 is considered permanent. The 3M 4200 is less aggressive in bonding. 5200 would more likely be used for through hull fittings, etc where you would consider the connection "permanent" For other applications I would consult 3M. They have a chart with the characteristics of their different caulks/adhesives.

Answered on 08/19/2014 by DAVID KOLB

Answer

I haven't had to remove any yet but I would first try asetone. I use that for almost all epoxy and two part glues and the like.

Answered on 08/18/2014 by HENRY GREIG

Answer

Very difficult to remove meant to be permanent. Would recommend silicone for applications that may need to be redone periodically. Dremel and drill chisel etc may be helpful.

Answered on 08/19/2014 by ERIK OLSON
Answer Question

Question

will fast cure work for a crack between rivets on an aluminum boat ?

Asked on 04/09/2013 by gerald mcclure

Top Answer

Gerald, 5200 is amazingly sticky stuff and will remain flexible when cured. Make sure the area you apply it to is very clean, no paint or dirt. Let it fully cure before launching the boat. Good luck! Dave

Answered on 04/12/2013 by DAVID HORAN
See More Answers (5)

Answer

Wish I could help. I used the fast seal to secure and seal bulkheads on a wood strip kayak I built. Worked great for that application.

Answered on 04/12/2013 by PHILIP PURCELL

Answer

Yes

Answered on 04/12/2013 by THOMAS CANGELOSI

Answer

Yes it will work great. I would get the boat out of the water first. Have some one back up the bottom of the boat and tap the rivets on the inside first to make sure they are tight. Clean the area where you want to seal with sand paper and solvent. Once dry apply the fast cure 5200. Buy what you think you will need. Once you open the tube no matter how well you seal it up it will harden!!!! This is because the 5200 is cured with air and WATER (even moisture in the air!!!) I use it on all of my under water connections on by glass boat, great stuff...

Answered on 04/12/2013 by BRIAN RISINGER

Answer

I have never tried it, but in general nothing sticks well to aluminum. By its nature it always develops an oxide coating that nothing, not even paint, adheres to. It is specially prepared by anodize tin just to paint it. Yu are best off finding a welder. Aluminum cracks weld up nicely.

Answered on 04/17/2013 by CHARLES FREEMAN

Answer

You could never get the inside of the crack clean enough to get good adhesion. You could apply it to the outside of the hull over the seam if you cleaned the aluminum shiny bright with a scotch brite and soap detergent. 5200 cannot take sunlight so 4000UV would be better. Use masking tape for a clean line!

Answered on 04/12/2013 by ALBERT SANOWSKIS
Answer Question

Question

will it glue vinyl to vinyl?

Asked on 09/10/2015 by Undisclosed

Top Answer

not really. im afraid it wont hold up

Answered on 09/10/2015 by RICHARD PATTERSON
See More Answers (4)

Answer

I used it to bond a pvc (poly vinyl chloride) dingy skin and tube. An inflatable raft , in other words. The flexible portion came loose from the fiberglass hard bottom. This adhesive has held for 3 years. It also held the vinyl to the hard transom with some stainless screws added until the adhesive held. The only thing that it MIGHT NOT STICK TO IS POLYETHYLENE. I HAVE NOT FOUND ANY THING FOR THAT. 5200 is very good and worth a try. It was recommended by a professional boating mechanic for my pvc dingy. Very pleased. It does set up fair quicky. So read the instructions and believe them.

Answered on 09/12/2015 by MICHAEL MEADE

Answer

Yep

Answered on 09/10/2015 by ROBERT ZWIERS

Answer

I used it to bond a pvc (poly vinyl chloride) dingy skin and tube. An inflatable raft , in other words. The flexible portion came loose from the fiberglass hard bottom. This adhesive has held for 3 years. It also held the vinyl to the hard transom with some stainless screws added until the adhesive held. The only thing that it MIGHT NOT STICK TO IS POLYETHYLENE. I HAVE NOT FOUND ANY THING FOR THAT. 5200 is very good and worth a try. It was recommended by a professional boating mechanic for my pvc dingy. Very pleased. It does set up fair quicky. So read the instructions and believe them.

Answered on 09/12/2015 by MICHAEL MEADE

Answer

I have never tried it.

Answered on 09/10/2015 by WILLIAM MITCHELL
Answer Question

Question

need to attach plexiglas to metal....will this work?

Asked on 06/22/2012 by Fred Gruenebaum

Top Answer

Hey Fred, the question is too sketchy for me. It is a very tough sealant - almost as tough as the slow cure type. I think it will bond to each material, but I cannot estimate the mechanical strength.

Answered on 06/24/2012 by JOHN HEIGHWAY
See More Answers (4)

Answer

I would be concerned as to it's strength as an adhesive as it is not an adhesive to my knowledge. I believe it would work to seal it as it has held a seal around the gel coat and brass fitting for my application several years and many hours below water line.

Answered on 06/22/2012 by CURTIS CHAMBERS

Answer

I would rough up the plexiglass and metal to create a rough surface to ensure a good bond. Make sure both areas are clean and dry. Allow 3M to setup and dry. You should be good. Thus stuff bonds well to anything it comes in contact.

Answered on 06/23/2012 by NICHOLAS HARPENAU

Answer

That should work. Use the Fast Cure 5200. If you want a more "permanent" bond, sand the contact on both with a course paper.

Answered on 06/22/2012 by Alexander Holden

Answer

I'm not sure I used it to attach a piece of starboard to my boat, works great its still attached after 3 years.

Answered on 06/22/2012 by JOHN RUSSO
Answer Question

Question

will this product hold up and bond to an aluminum boat below the waterline?

Asked on 04/04/2012 by alan pease

Top Answer

Have not used the product on aluminum hull. However, in '09 I applied it to re-inforce the seal around a brass fitting, the aluminum screws which attached the fitting to the hull and the gel coat around the fitting and the hull below water line. It bonded well to all and is still performing well after 400 plus hours.

Answered on 04/05/2012 by CURTIS CHAMBERS
See More Answers (4)

Answer

The best sealant ive ever used and is still holing up since 2009,

Answered on 04/05/2012 by LEE WATSON

Answer

Alan, I used 5200 both fast cure and regular cure for 20 years keeping a wooden planked 30' Chris Craft Cruiser dry. 5200 is very sticky stuff. I would give it a try. Just make sure the area you are using it on is free of paint,clean and dry. Good Luck.

Answered on 04/05/2012 by DAVID HORAN

Answer

From my experience...yes. This stuff holds to everything; just make sure surface is clean and free of oils.

Answered on 04/04/2012 by NICHOLAS HARPENAU

Answer

Alan- I have never used 5200 on an aluminum boat, I usually use it to bond hardware and thru-hull fittings on fiberglass and wood. If you are going to use it to seal and bond something that will also be fastened mechanically as well, it will seal and hold very well. If you are using it simply as a glue I'm not sure how strong the bond will be. If you do use it be sure to etch or scratch the surface.

Answered on 04/04/2012 by MIKE WILSON
Answer Question

Question

can you use this to repair plastic gas tanks?

Asked on 08/06/2015 by alan Last Name

Top Answer

it will work but wont last for long

Answered on 09/10/2015 by RICHARD PATTERSON
See More Answers (3)

Answer

yes , I have repaired diesel filter cannister leaks on a diesel engine while it was hot and running . simply by wiping of the leak area and applying before it started to weep diesel fuel again. obviously a strongly flowing leak would need to be stopped so the 5200 can have a dry surface to adhere to. James p. Scalise

Answered on 08/07/2015 by James P. Scalise

Answer

I wish I could answer the question but that is not an application that I have ever tried. I can tell you that I used it to seal amphibious aircraft floats for over 27 years of professional flying and there is no better sealant on the market, both fast cure and standard cure 5200. There are products out there that are used to seal rubber bladder fuel tanks in aircraft but I would give 5200 a try first. We swear by it.

Answered on 08/06/2015 by EUGENE RACKLE JR

Answer

I don't think so, I don't think it would stand up to the gasoline.

Answered on 08/06/2015 by EDWARD JORDAN
Answer Question

Question

does it work an acrylic ?

Asked on 07/23/2015 by Undisclosed

Top Answer

MMM 5200 is not recommended for acrylic. They recommend MMM Marine Sealant Silicone.

Answered on 07/23/2015 by Rick White
See More Answers (3)

Answer

It works on almost anything, acrylic included.

Answered on 07/23/2015 by CHRIS HAMILTON

Answer

Used on fiberglass & stainless steel. Bonded extremely well

Answered on 07/23/2015 by JAMES DALY

Answer

I never tried using it on acrylic. It is supposed to work but I can't verify-

Answered on 07/23/2015 by ALLEN JOHNSON
Answer Question

Question

Can this product be used as a gasket sealant between meeting metal surfaces ?

Asked on 06/05/2015 by Donald P

Top Answer

yes but only in a pinch its not gasket maker. And will be hard to get apart

Answered on 06/17/2015 by WILL ALBRECHT
See More Answers (3)

Answer

We have used this product between metal to plastic bonding and have never had an issue. Although we have not used it as a gasket for a metal to metal, I believe it would be fine.

Answered on 06/05/2015 by SHANE DUNN

Answer

Is the gasket going to be used for an engine application? I cannot really answer that question but we use it here for adhering faces to signs and letters to faces. The adhesive is very strong and is like silicone (applying process, not silicone properties). Once you adhere to the metal surfaces as long as it is prepped properly, it will be very strong and difficult to separate. If you are using it to hold trim or anything done or seal a cockpit or cab than i think this will work great. But i would not recommend using it for any engine related applications because i do not know the oil resistant properties, heat properties, pressure properties of this product.

Answered on 06/05/2015 by SEAN MCGLONE

Answer

I do not think it will work well for a sealant on metal.

Answered on 06/05/2015 by MATHEW FLUHARTY
Answer Question

Question

I have a hole about a golf ball size in the front of my Kayak. Will I be able to fill the hole and have the product dry and fill the hole in? I can put something on the inside but not the outside of the boat. Just wondering if I would be able to sand after it dry's as well? Any help on this would be much apprieciated. Thanks

Asked on 07/01/2014 by Undisclosed

Top Answer

5200 turns into a rubbery stiff sealant and I don't think a hole that large will successfully patch for a long time.. Fiberglass cloth probably better.. 5200 is for bedding fittings like a thru hull transducer and deck fittings. Good luck..

Answered on 07/01/2014 by CARL LYONS
See More Answers (3)

Answer

I would suggest taping something on the inside some aluminum then fill the hole, smooth it on the outside with a putty knife and let it cure for 24 hours should be fine, filled some holes on my fiberglass boat just fine

Answered on 07/01/2014 by STEVEN WILLIAMS

Answer

Rather than using 5200, I would use G Flex epoxy which is a West System product. I believe there is a video on the West System web site which shows the repair of a plastic kayak. Good luck

Answered on 07/01/2014 by GARY OLERUD

Answer

5200 does not sand well, but it will seal the hole against a backing material.

Answered on 07/01/2014 by ROBERT ZWIERS
Answer Question
1 of 4