I had to rip the foam liner out of my gunvault. The back ends are glued down so I couldn't get to the rear mounting holes, and the whole liner is one piece all around, so I cut out the bottom part and left the sides and top in place. I went to Loews to see if I could find some foam to recut for the bottom, but they didn't have any. The guy showed me this rubber drawer liner that mechanics use for their tools. It's made by Kobalt and it's an "Anti-Corrosion Drawer Liner". It has a product called "Zerust" impregnated in the rubber that is a "VCI" (vapor corrosion inhibitor). When the liner is removed from the bag, it releases the odorless, invisible vapor that saturates the air in the enclosure. The Zerust supposedly clings to the surface of the items and protects them from rust. The label says it's OK for firearms. Anybody else use this stuff? I just wanna be sure it won't screw up the finish on the guns.