) These abrasives usually won't scratch glass, but test a small area first just to make sure. If elbow grease alone won't do the Stellenangebot or if you have large areas to cover, use a Exerzieren and a small buffing wheel (find one at home centers). Remove built-up Belag from https://www.greenilite.com/shining-bright-the-ultimate-guide-to-solar-cleaning-tools/