I need to get my boat seats reupholstered but that’s a Fall project. I’d like to fix a few cracked spots to get through the season. Does anything actually work to repair cracks in vinyl seats?

I’ve used VLP but it only works marginally well and turns dark in color. Not ideal on white seats.

Maybe try some Goop? There are like 8 different packages, but I think it is all the same stuff inside, just hangs in different store sections.

Duct tape or Gorilla Tape as a temp fix till better repairs later....................... drill sgt.

Although this is a how-to for lawn mower seats, maybe it could work for you application as well -

Simple Repair on a Cracked John Deere Riding Mower Seat
https://www.youtube.com/watch?v=qQYqkyc9Z50