After reading on here multiple post about por 15 i decided to give it a go.
one thing i learned from the message board was not to open the can but instead just drill a hole and seal it with a screw. this worked great however what i learned from my own misery was do not shake the can to mix before you drill the hole. when i popped the hole in that crap sprayed out like a tiny fountain made a heck of a mess. so drill your hole put your screw in and shake away then remove your screw no mess.