Filling small holes in Filon/Fiberglass exterior walls

If it is white Filon I would use Marine-tex or any white epoxy sold at any marine supply store. Sounds like you are filling a few holes maybe 1/8 in in dia so you can even by a 3 oz tube of 3M 5200 to fill the holes. Just smooth it of with a putty knife after you fill the holes.

pauldub wrote:

Marcela wrote:
Clear silicone sealant is your friend. And it will match perfectly the surrounding color.

Never use silicone. When in needs maintenance in the future, nothing will stick.

Agreed! And the silicone won't stick either. It will cause a leak around itself.
A good polymer based sealant is the best choice. It will even adhere to wet surfaces. I use Weathermaster Titebond in my solarium business. Best I have ever found for the application.
There are others, widely used here by members, but no to silicone.

Marcela wrote:
Clear silicone sealant is your friend. And it will match perfectly the surrounding color.

Never use silicone. When in needs maintenance in the future, nothing will stick.

Moved to Tech Issues forum from DIY.

Seal holes, install stick on levels for front to back leveling. That's if the storage doors are at front of trailer!! 99% are!!

Clear silicone sealant is your friend. And it will match perfectly the surrounding color.

The doorknob who had our TT before us hung a decoration on a wall with drywall screws that were longer than the wall was thick....
Screws were sticking out the wall on the outside.

When I pulled them out I just used some polymer based caulking a similar color and filled the holes, then smoothed it off on the outside and cleaned up any excess.

The thing to do is put the caulking tube nozzle right tight to the wall surface, then pump pressure on the gun for a second, then release the pressure before pulling the caulking gun away. This will force caulking right into the hole a ways so it isn't just on the surface.