Forum Discussion
Dave_Pete
Sep 13, 2016Explorer II
c11motorhome - I pity you, due to the silicon. Please anyone who reads this, don't use silicon on an RV!
I found the best way to remove silicon caulking on Lil' Queeny was through scraping, just as you describe (lots of elbow grease), BUT and here's the plus...
Use Naptha solvent. Naptha is an oilier solvent than many (acetone, lacquer thinner, mineral spirits, etc.), and I tried all/most of them. I found that Naptha softened the silicon enough that scraping became much easier. A plastic scraper is smart (sometimes I'm not that smart and used steel), and an old toothbrush does a good job for application and some scrubbing. Various stiffness brushes can aide. Take your time and get that **** off, and then for attaching items to opening use a good quality butyl tape (not putty tape) and don't tighten so much it all squeezes out. Tighten enough to make a seal and leave butyl in place. Trim excess as needed until it stops oozing out (several temperature changes of hot/cold cycles), then use a flexible (non-silicone) caulking like Pro-flex brand to finish the edges (at least top) where the window meets the exterior surface (or vent, or jack mount, etc.).
I found the best way to remove silicon caulking on Lil' Queeny was through scraping, just as you describe (lots of elbow grease), BUT and here's the plus...
Use Naptha solvent. Naptha is an oilier solvent than many (acetone, lacquer thinner, mineral spirits, etc.), and I tried all/most of them. I found that Naptha softened the silicon enough that scraping became much easier. A plastic scraper is smart (sometimes I'm not that smart and used steel), and an old toothbrush does a good job for application and some scrubbing. Various stiffness brushes can aide. Take your time and get that **** off, and then for attaching items to opening use a good quality butyl tape (not putty tape) and don't tighten so much it all squeezes out. Tighten enough to make a seal and leave butyl in place. Trim excess as needed until it stops oozing out (several temperature changes of hot/cold cycles), then use a flexible (non-silicone) caulking like Pro-flex brand to finish the edges (at least top) where the window meets the exterior surface (or vent, or jack mount, etc.).
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