Inside wall refinish back to factory look.
I guess I dodged what I thought was going to be a possible huge repair. Just last week I noticed 3 or 4 areas of pimples and bumps protruding from the inside back wall of our trailer. I was sure I had...
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That looks like it may be paper coated paneling like most RV's have. It may be difficult to "sand" those areas down to be able to stain them. You may have better luck by cutting out each of the bubbled areas with a utility knife or an X-Acto knife and then peeling off the bulged area. Then the areas (each bubble) will be much easier to fill and match with paint. If it was me, I would fill the small areas with a color matching non sanded bath tile grout which is available in a caulk tube at your local tile or big box store.
