Mickey's RV8 Site - 3M 5200 sealer

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Welcome to Mickey's RV8 Site
Thu, Feb 09 2012 @ 19:35 in Switzerland

3M 5200 sealer

Wed, Sep 10 2003 @ 15:10 in Switzerland
Contributed by: Mick
Views: 6,651

Picked off the RV8 list, a strong sealer for sealing between the canopy and the fairing.

From: "StephenC" <k4cpx@comcast.net>
Subject: Re: Seal between canopy and fairing

The 5200 (marine ) comes in marine stores---ie., West Marine and west marine.com too. And a gazillion other places.

It comes in two versions regular and Fast Dry. The regular skins over very slowly and takes 3-5 days to really thoroughly set up if 1/4" thick. The Fast Dry will skin over in 2-3 hrs. and goes off pretty well overnight. Both are paintable. Altho' there are many different paint solvents these days so I'd reccommend a test.
These are the strongest sealants known to me. We use them all over boat building. The are so strong that the furniture (steering station, small decks & seats) in Carolina Skiffs are held in place with a rim coating of 5200. A few screws are used too, to keep anything from moving as it goes off. It adheres to virtually anything. It comes in single toothpaste tubes and gun inject tubes. It comes in White and Black.

An old story about 5200 is that the guy complained to the factory that he got it all over his hands and clothing while ordering it on the phone.

The is a new slightly less expensive product just out by 3 M known as Fast Cure 4000 UV. I just used it for the first time to adhese some trim around an instrument panel where I didn't want fasteners to show. It bonded like a bull. It may be a little weaker than 5200, tho' I saw no signs of that.

These sealants are very flexible. A slightly thick layer, allowed to go off on one surface will act as a flexible "O" ring. A thick layer between two bonds will allow considerable movement by the two pieces without breaking adhesion. Ie., boat windows where the dark plex and white FG have very different expansion rates. And the hull is always flexing too.

The surface may be smoothed up easily with a water-wet finger as it is going off.

It is believed by many in the marine industry that 5200 should not be used any place where one might want to break the bond at a later date. This is not wholly true, as a heat gun application will weaken the bond at temps above 200 F. If you gotta remove it, heat it

I would expect we could fly an airplane held much together with 5200
Good Luck
Steve C.

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The following comments are owned by whomever posted them. This site is not responsible for what they say.

3M 5200 sealer

Authored by: Anonymous on Sun, May 02 2004 @ 03:08 in Switzerland

Hi Steve
You wrote last Sept. about the use of 3M5200 on your RV. I thought that you would like to know that there is a product that will clean up fresh as well as remove cured 3M 5200. The name is DeBond 2000 and information can be found at debond2000.com. It will also clean up most other adhesives including Liquid Nails and most sealants.

Charles N