I had a Dupont sealant professionally applied to my finish (brand new car). It protects against acidic and other etching of clearcoat, and is warranteed for 5 years. However, the sealant is disolved by alcohol. All soap or cleansing products seem to have oils, etc. in them, so they require the alcohol wash. Am I out of luck using the Opti-coat (and glass and lens) since I don't want to get alcohol near it?