Been using it for about 15 years. Great stuff! I use it on tires, Rv trim, Boat, have even used it on house siding, but it is a bear to keep applying it to that much square ft. Everything I have put it on and kept it on suffers no sun damage! Put it on truck dash that sit in the sun for 15 years and when I sold truck the dash looked new! Also, put it on Roll-n-lock bed cover, thats how I got started using it and it literally looked just like my new cover on my new truck after 15 years of sun! Best stuff I have ever used!