: No, the zipper is encased in cloth- kind of buried in its own
: cubbyhole that protects the boat inside and keeps the zipper out
: of UV on the outside.

What I meant was using it while on the roof of the car. Fabric chafing on the varnish.

I've seen trailer covers on bigger trailerable boats take the gelcoat off if the cover wasn't snug.

If you're using it to keep the boat out of the sun, suppose this doesn't apply :)

Bill H.