Expanding foam

[donnary]

I am trying to mouseproof the bottom of my camper with expanding foam.Does anyone have an idea on how I can do this lying on my back without the foam falling all over the place?

[OldBeaver]

Piece of plywood, with light coat of oil..
Use the plywood as the barrier.

[tuffr2]

That stuff is extra messy. I like the idea posted. I was going to say use a mask and googles with rubber gloves. That stuff expands a lot so be careful.

[19fisherman4]

You know that they make the special foam for rodents that is harder than the regular foam and I think is scented as a deterrent ?????

[Arch Hoagland]

Have you used expanding foam anywhere before? It expands a LOT.

[winniman]

Stuff the holes with steel wool as a backer first. This will minimize the amount of foam you need, and deter the critters from chewing through the foam. Buy low expansion foam like the kind used for installing windows. Put in on is several layers if needed to minimize the waste and dripping. It can be trimmed once it hardens. Wear throw away gloves.

[Tom Cooper]

In general, if you want to do it with foam, then you need to be very careful about this matter, as this can harm an important trailer. The idea with plywood is not bad, it can be combined with foam so as not to damage anything

[Blazing zipp]

Two years ago, in Alaska, the rodents used our foam for nest filling.

[winniman]

Originally Posted by Blazing zipp

Two years ago, in Alaska, the rodents used our foam for nest filling.

That's why I suggested the steel wool first. They don't like chewing through steel. The foam will mix in somewhat with it, and create a dam better than just foam.

[Chowboy]

Agree with the foam is a good nest filler. You might try brass wool, it is a bit more toxic than steel, in fact you might shake a little warfarin into the wool to help the critters exit this "veil of tears". Regular visits to remove their stinky carcasses should be a priority.
Good luck and keep us posted.

[theoldwizard]

Originally Posted by winniman

Stuff the holes with steel wool as a backer first. This will minimize the amount of foam you need, and deter the critters from chewing through the foam. Buy low expansion foam like the kind used for installing windows. Put in on is several layers if needed to minimize the waste and dripping. It can be trimmed once it hardens. Wear throw away gloves.

Great tips ! Look for stainless steel wool. You can use the stainless steel pot scrubbers.

The spray foam stick to everything like crazy. Low expansion foam is a must.

Besides disposable gloves, if I was working on my back, I would use a full face shield even if I had to replace the lens when I was done.

[clifford j]

Rodents eat foam, rodents eat a lot of things,, Steel wool is a good suggestion ,rodents won't eat the steel wool but will go around the corner and eat something else. It's like sticking your finger in a dyke,,,it'll leak somewhere else. Rodents will eat brake hoses, insulation ,etc. Rodents chewed on my brake master cylinder cap , go figure. My suggestion is to use a deterrent ,,,like peppermint oil and oil of garlic, rodents hate the smell. I have the stuff in my bay's. Happy hunting

CLIFFORD

[tuffr2]

I have 8 mouse traps that I use to catch mice. I think it helps. I use steel wool also.

Mice would have fun chewing thru the expanding foam. Expanding foam is good for insulation but not for mice.