303 has been around for awhile, mostly in the boating/marine environment. 303 has made a good reputation as a UV protector, because it works! We also use it in the aviation industry, on expensive stuff that the sun destroys. Big aircraft “tundra tires” that cost thousands of dollars, will last 20 years, if you use 303 or maybe ten if you don’t... Big inflatable boats, Zodiac, Achilles or NRS types, rot in the sun. Car and boat interiors that crack due to sun damage...and on and on...Basically anything you park or use in the sun 🌞 needs UV protection, some things more than others...