Useless- Says "SUPs & Paddle Board Patch Glue" then on the package it states "Will not work on nylon-based materials". Well I am sure a paddleboard is largely nylon based. Would not stick at all.
This glue should be applied by itself and not with a patch. The patch won't stick. It is just a blob over the whole which cures in two hours. No instructions with the pack but the 鶹 pictures show how it works. I have applied it but I have not tested it yet. If it works then it requires 5 stars for simplicity...