Nashua 398 duct tape used on newly installed commercial carpet left sticky residue that seems to resist all efforts to remove. Residue is attracting dust and leaving dirty spots. Have tried Dis-olve citrus based clear 'goo' remover, carberator cleaner, denatured alcohol, tried laquer thinner but it seems to pull color. HELP! This is a low pile and I'm leary of 'shaving' the carpet as it will show.