I was sold on these back in 1999 when I saw a man dusting his $15,000 black paint job on a hot rod at a car show.  I was at first shocked to see him running it over the paint and asked him about scratching the paint.  He said he would use nothing else to get light dust and pollen of his cars and the proof was there to see.  My last one "died" the other day after 5 years of almost daily use when a defective bleach bottle spilled in my trunk after grocery shopping.  I am ordering another one today.  I've used these on many different cars and colors - including black and have never had problems.  This is truly a bargain even at twice the Amazon price.