When I bought my 2007 Escape 17b, it had moss growing on the roof. The old guy I bought it from wasn’t very mobile anymore.
After talking to some boaters and driving to different stores, I bought a Maguiar’s fibreglass restoration kit off Amazon, cleaner, polish and wax. After a lot of elbow grease, it looked great. The previous owners used a winter cover and I had a hard time getting the shine back. I think the winter covers are bad for the gelcoat. They blow in the wind all winter. Get it shrink wrapped instead.
https://www.meguiars.com/marine/prod...stem-m4965-kit
Be really really careful if your using a polisher. Unless you know what you’re doing, you might go right through the gelcoat.