3M 4200 Fast Cure is a one-part general purpose polyurethane sealant with good adhesion to wood, fiberglass, gelcoat, plastic, and metal. When cured, 4200 forms watertight, weather-resistant seals on joints and boat hardware above or below the waterline.
4200 FC (fast cure) is ideal for hardware and bedding applications. It is paintable and sandable. While 3M 5200 sealant results in permanent bonds, 4200 has approximately half the strength, making it a good choice for applications where the bond may need to be broken in the future such as replacing hardware.
Size displayed is the 10 oz. cartridge. Choose Color and Cartridge Size.
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Below Water Line (yes/no):
Rate Of Cure:
Does 3M 4200 sealant come in clear or white only and do you stock a smaller size. And/or how long will the product keep. I am only installing a new inspection port, drain bung assembly and replacing fairlead and a cleat with eyepad mounts for blocks and a double cam cleat on my laser. (white hull/deck) Previous repairs by others white sealent was used and it has a yellowish dirty tint to it. Seems like the clear would be a better choice?
it comes in white and black only 3 oz white and 10 oz tubes white and black.
I've used 3m 4200 to fill the seams of a carvel planked tender that lives on a trailer. What can I use to paint it? So far, it reacts badly to primer.
Unfortunately paint doesn't stick well to this product.
what is the manufacture date on the 10 oz size you have in stock ? will read MFG then month/ date/ year..thanks
Can I use 4200 in my topside seams on my mahogany grang banks motor cruiser ?Prevoiusly filled withan epoxy filler which cracked and let in moisture so noe all raked out and ready to go with new flexible sealer
I would not use it where it can be seen. It is difficult to get it smooth and it tends to collect dirt. It works great otherwise.
WithWill it adhere to vinyl ?
Roberta Del Castillo
I don't know. I used it on stainless steel and fiberglass. You may have to go directly to 3M with that question.
Yes it will stick to vinyl and glass
Yes, it will adhere to almost anything.
how long to cure?
The data sheet with this answer and more is provided under "More info".
24 to 48 hours to cure (tack free in 1 to 2 hours)
24 hours to cure.
can 4200 be used to seal around a fuel gauge fitting at the gas tank?
Extended exposure to chemicals (teak cleaners, oxalic acid, gasoline, strong solvents and other harsh chemicals) may cause permanent softening of the sealant. Use: Permatex Aviation Form-A-Gasket No. 3 Sealant
Do I remove the seal on the back end of the tube before I put it in the caulking gun?
Yes, remove the seal.
Yes, remove the seal .
Is this product good for sealing boat windows?
Yes. I resealed my Pesrson 26 with this ptoduct. I pulled or cut off any loose old seal material, then I masked the area where I did not want the sealant and left the area where I wanted the sealant applied the 4200 yhen took soapy water while 4200 was wet and leveled it to the angle I wanted around the window and frames. I let it set up maybe a half hour and slowly pulled the masking tape off and the took paper toels to clesn off areas where the 4200 was not wanted. Windos have been leak free since doing this snd the windows look like I replaced the seals, when I pulled off old dried out seals what seemed not dtied snd wrotten I roughed up with scoych brite and cleaned the old sesl that was going to stay installed so the 4200 could stick and cover the old seal I left around the windows. Hope this helps uou.
Thanks Donald, great help. I was concerned because on a cartridge i have is mentioned: "not recommended for bonding windows". Don't know if this refers to windows work in general, or specifically to bonding only, not sealing. If it worked for you, will be good for me, too. If you can let me know; how long ago did you resealed your boat window(s) and was she on water after?
It's really terrific caulk and should be great on windows!
It would work well sealing port lighats and boat windows.
Though I didn't use it for a window, I did seal a hatch that was water tight after using this product.
Will 5200 adhesive cure properly in Florida sun?
Moisture is the catalyst. As long as it is humid.
DAVID W JAFFIN
shouldn't be a problem; in fact, use the slow cure if you can, especially in the heat!
great product to work with
this product was fresh
green bay WI.
Great product. I replaced a drain fitting that was leaking into my boat. No more leak! Thanks JD
i use this 4200 for everything above the waterline,
sheeds ferry NC.
First, Jamestown has the best prince!I used this to adhere aluminum skin to the side of wooden trailer and it worked perfectly. I have no complaints for its performance, what so ever. The only thing you need to what is that once you open, there is not a easy way to keep remainder from hardening. The best thing to do is to plan ahead and use full tube all at once.There are a few more things I need to mount, so I will be ordering soon.
Avoiding mess with 3M adhesives
These are great products and yes, if you allow it, they will get messy. When using these products:Choose the right product for the application! 5200 will yellow in the sun.Tape off area, give yourself room, make your lines straight. Put on gloves.Don't over fill, you will just have to wipe more off. Wipe the end of the tube with a paper towel when you pull it away Don't over tighten fasteners, you want to leave some adhesive between surfaces and finish tightening after cure.Wipe off excess, a little at a time to avoid smearing. Wipe down with Multi purpose cleaner or acetone for a clean smooth finish, remove tape after surface cures.
Product was great, shipping was lousy
This product was easy to apply and dries very quickly. The only problem we had was the shipping.
What a mess!
I was using this product to bed and seal new jib tracks. When applying a 'dab', product was extremely stringy. Wind blown strands had to be cleaned off the hull and track. The air temperature was in the low 80's F. Also, the product appeared to set up much too quickly. I don't know if this was a defective batch since this was the first time I used this product.
Oklahoma City, OK
Great temporary repair for truck floor!
I used this to repair some rust holes in the floor of my truck as a temporary repair. I simply dried it out, gave it a good vacuuming and applied it and it adhered incredibly well, much better than standard silicone would have...
What else is there?
This is the best bonding and bedding compound for hardware. Its very reliable and I've been using it for years. Its messy as hell, so equipe yourself with an abundance of rags; some dry, some with mineral spirits on them.
Long Beach, CA
Just what I needed....
I was looking for a durable product to use on an project that is highly exposed to sun, salt and water in the Bahamas. I figured this would be the best solution and it needed to be black in color. Only wish it was sold in smaller quantities so that application wouldn't require a caulking gun.