I don't know that I'd let 5 minute "rest". When it says "5 minute" on the label, it doesn't mean "5 minute and one second". The epoxy will begin to set up and become too thick to use before the 5 minute mark is reached. Work FAST.

Deadeye is right. Use 5 minute only for fuelproofing or foam, and 30 minute (or longer) for wood.

Dr.1