303 Aerospace Protectant is the most powerful UV screening protection ever made. Use it on lots of boating and household gear. Originally developed for aerospace and aviation applications, 303 repels harmful ultraviolet radiation and is really helpful in prolonging the lifetime of your raft. Don&';t forget to use this on the latex gaskets in your paddling apparel to protect against UV damage. Safe and effective for use on synthetic and natural rubbers, PVC, gel-coat, fiberglass, carbon fiber, plastics, finished leather and UV-sensitive plastics. 303 is a premium surface treatment that provides superior protection against harmful UV rays that can cause loss of mechanical properties such as: discoloration, fading, embrittlement, cracking and/or chalking. Treated surfaces repel dirt, soiling, staining, water spots, salt water and mildew. Easy to use - just spray on and wipe dry! This is an environmentally safe water-based product that contains no petroleum distillates, alcohol, mineral oil or silicone oils. It&';s non-toxic and biodegradable.