303 Clear Vinyl Protective Cleaner is ideal for protecting clear vinyl windows on boats.303 Clear Vinyl Protective Cleaner offers superior protection against the harmful effects of UV rays. This product safely cleans and protects against the yellowing and cracking of vinyl, clear vinyl, Strataglass and Eisenglass, leaving a non-streaking finish.Key FeaturesSafely cleans and protects against yellowing and cracking of vinyl and clear vinylSafe for use on Strataglass and EisenglassProvides superior UV protection, leaves a non-streak finishContains no alcohol or ammonia