I tried searching, but can't seem to find the answer. I'm planning on using OSB for part of my custom built enclosure, and I've been told it is best to seal the wood. What type of a sealant do I use? Could I perhaps use a non-toxic stain or something? The sealed wood will come in direct contact with my leo, so I want to make sure the sealant is waterproof, non-toxic, and won't release anything upon heating. Thanks in advance.