sorry guy........for window installation of vinyl, WINDEX NO DRIP formula works very well for a wet application......NOT FOR CLEANING!!!!! everything i apply vinyl to i will clean with "appropriate" CLEANING SOLUTION!!! one product is not it. 409, PURPLE POWER(my favorite)FANTSTIC, you pick one. after an INTENSE CLEANING with any of these products.......ALCOHOL with at least 91% alcohol!!! this will clean any residue left by the heavey duty cleaners. been doin this for 20 years.....AND NEVER HAD A FAILED INSTALL)))