I had to do an impromptu repair on a cowl and need the plane this weekend for an event. Is there some version of hardware store paint that is fuelproof or at least will last for a few flights? I am not concerned with color, texture or finish just that it will cover the repaired area and not flake or wear off right away. I do not have a hobby store close by and don't know that there is enough time to order and get some here.

Any thoughts?