Removing clear silicone caulk from exterior fiberglass

Apply acetone, white vinegar, isopropyl rubbing alcohol, toluene, or xylene to the silicone caulking. Spray or rub one of the solvents on the silicone caulking to dissolve it and scrape the area with a putty knife or scraper. Pour water on the area, wipe up the area with a rag, and vacuum it when it's dry.