I have some spray my friend gives me to use on the bike for cleaning bugs etc..He has a car detailing business and uses it to clean dust off of paint and windshields. It dosent hurt or scratch the paint or plexiglass if you wipe it off with a clean cloth, just spray it on and let it set, then wipe. I have been using it on my bike for years, it saves me washing the bike after short rides, at my age 73 I can use every bit of help to keep from working too hard. He buys the concentrate in 55 gallon containers and mixes it with water for me. I will get the name of the product and post it. A mixed gallon lasts me a year.