Will it work?

[Muggnz]

nope.

We want to make sure that it can get out of the garage. After that . . .

[bobhenry]

Oh goodness ! low tech redneck here.

Stuff in the hair dryer or a heat gun for about an hour then fill all the offending openings with expanding foam. Cheap effective and now waterproof.


On an unrelated note:

We need at least 15 more campers May 17-19 in Brown County state park near Nashville IN. Visit the midwest section and give us a shout we'll assist any way we can. Gotta fill up the entire campground section with tears.

[Wos]

Some auto stereo guys out there have used expanding foam as noise insulation in body of their cars with bad results. Most of the expanding foams soak up water like a sponge, may keep enough out for a trailer living in a dryer area but very destructive in the wetter corners of the planet. They do make spray foams that would work but you would have to read the can or talk to the company. A better idea would be a silicone or even just spray paint. A friend of mine used the top from a can of WD40 (including the straw) on a can of cheap spray paint to coat the insides of a jeep CJ7 body. it coated pretty good from what we could see.

[bobhenry]

Most of the expanding foams soak up water like a sponge, .

I am living proof that "Great stuff" by Dow in the red can will seal out water. When I added on a kitchen to our home I had to cut thru the existing roof to make pockets for the new trusses to bear on the exicting walls. Panic set in about how to seal out the weather as we were only able to work on our project weekends. God love Vickie she suggested the expanding foam so I filled each and every pocket with a liberal dose of foam and we only had 1 small leak. This was later credited to operator error when I went to look we did not spray enough and left a small path for the water. This was early spring and this temporary repair held until the roof was decked and fully installed about 6 weeks. In your defense the can says "water resistant" and paintable as well so if you want to paint something use some spray truckbed liner and seal the foam with it. It will and has worked.

[Muggnz]

Will any these expanding foam type of products cope with the constant vibrations a TD will subject them to? Without failing, due to disintergration or worse.

[TD4FREEW/CTD]

I had a friend with a boat trailer that was tubing . He sealed the ends with caps & installed an air valve on one end & filled the frame with nitrogen. he checked his pressure once in a while to makes sure there were no leaks , it worked great. Never had a rust problem. Just more ingenuity for ya!

i like that idea. like a race car chassis. sealing the chassis and filling the tubes with an inert gas that displaces oxygen sounds like a winning combination. if it holds gas, water wont get in. you can quickly diagnose structural troubles by monitoring pressure. displacing oxygen with an inert gas eliminates electron hungry oxygen; pretty much nipping your rust problem in the bud. at least it sounds reasonable.

probably also a great idea for people making off road trailers. great piece of mind to know your trailer frame is still solid after beating the crap out of it off road. could even help you avert a catastrophy. hell, if you wanted to get really creative, you could make an electronic system with a warning light that alerts you if pressure loss occurs.

[bobhenry]

Will any these expanding foam type of products cope with the constant vibrations a TD will subject them to? Without failing, due to disintergration or worse.

The can says "SHAKE WELL"

[Aaron Coffee]

Seems like I remember seeing a wand to paint the inside of frame rails, can't remember where though. You know that catalog with the auto restoration stuff. I'll think of it eventually.
I think it was in the Eastwood catalog. Knew I would think of it eventually.