So I've run into trouble now that the rainy weather has arrived and ruined the clear packaging tape I was using which is okay; it looked really tacky.
BUT, now my question is: What is the best way of painting coroplast? I've decided to use zip ties to attach my grill block to my grill but I want to avoid the use of tape to cover the poor paint job that comes off easily and to avoid it, I want to do a good paint job. Would using paint primer on the coroplast be enough to keep the paint from peeling away so easily?
EDIT: Answer: Looks like paint primer does work great at keeping the paint on. Great!