POR 15 works wonders on floorboards. Wire brush to knock off the loose stuff and paint. If you have small holes, uses fiberglass cloth and paint it with the POR 15. I've fixed several minor holes in floor boards with no negaitive issues. I put the cloth underneath and \use a little bondo on the internor side to smooth it out. POR sells trunk repair kits and all it is is FG cloth and POR 15. From: Julie <julie.hey.ho.lets.go@xxxxxxxxx> To: tcb@xxxxxxxxxxxxx Sent: Tuesday, June 18, 2013 8:29 PM Subject: [tcb] To strip or not to strip One of the VW people I trust most said to strip the primer off the new metal and then paint on the POR 15. And the POR 15 site does say that the magic happens when the POR 15 is directly applied to the metal with nothing in between. Striping would not be such a hard task but the floor is all lumpy bumpy so sanding won't be so easy. And I have never had luck with chemical stripers.