303 Products Aerospace Protectant was orginally engineered for aerospace and aviation applications, it's a premium surface treatment that instantly beautifies and provides superior protection againist harmful UV rays. Great for use on colored gel-coat fiberglass, inflatable boats, vinyl, clear vinyl (isinglass) windows, rubber plastics and leather. Easy to use, spray on and wipe dry. Treated surfaces repel dirt, soiling, staining, water spots, salt water and mildew.