Here's the skinny on marine vinyl. Out of the factory, the vinyl is coated with a polymer that is fused onto the fabric. Itis intended torepel moisture and cope with UVexposure. Coating it with a topcoat doesn't really extend the polymer's lifespan. Once the UV has done its damage, the topcoat will help protect the fabric, but not close to theextent that the factory coat will do.Likeisinglass, oncethe polymeris gone, its a losing battle to keep it looking decent and stop the deteriation of the material.Top grade viinyl and isinglass (strataglass) is good for 10 years max. Then time to replace.
Thanks for the responses. I went to west marine today, and almost got the 303, but the guy there said that once i started using it, i had to keep using it monthly or my vinyl would crack right away. Is that true?