How to Remove Cured Silicone
You've completed your new project or remodel job but notice that some of the cured silicone is not correct. It may have leaked over onto a surface that you didn't want covered. Generally a strong fingernail won't do the job of removing the errant caulk. By following a few basic procedures, you can remove cured silicone from any surface. Does this Spark an idea?
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Instructions
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Use the razor blade to carefully cut a line behind the cured silicone bead of caulking. Run the sharp edge of the razor blade vertically down the full length of the silicone bead.
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Cut into the horizontal side of the silicone seal by laying the razor blade on the horizontal surface and running it through the cured silicone to the end corner of the seal.
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Use the edge of the razor blade to pull up one end of the cut strip and gently pull it away from the surface. You may have to use the razor blade to gently pry the rubber-like strip from a tightly bonded area.
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Remove any remaining silicone chunks with the edge of the razor blade. This may take some time as you don't want to scratch any smooth surface.
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Use the plastic scrubby to remove any small or thin layers of the cured silicone by working it back and forth along the remaining silicone. The plastic scrubby won't scratch a smooth surface and will "rub" away any unwanted thin layers of silicone.
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Use a clean rag with a small amount of acetone poured on it. The liquid will loosen and remove any remaining silicone that's lodged in a crevice or still adhering to a surface. Be careful of the amount of acetone you use as it can also remove paint from walls or surfaces. Use acetone in a well-ventilated area and away from flames. Acetone is a highly flammable and explosive chemical.
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Tips & Warnings
To prevent errant caulk in the future, when applying the silicone, use a small plastic scraper to shape and mold the wet caulk. This can be effective in tight areas that are hard to reach with hands or fingers. Wet the plastic with water. Water keeps silicone from adhering to any surface before it is fully cured.
