DIY enclosure, what to seal interior edges with?

So I'm starting my enclosure and read posts to use non-toxic sealant for the interior edges. I read the labels of like 5 products at home depot all said could be irritating/harmful while curing, I picked up clear silicone will this work? If not is there a product you recommend?

You're going to laugh... but I use Hot Glue. A simple glue gun. It works wonderfully, is fully water resistant, totally non toxic, and dries instantly so no waiting period. :D

And it lasts. My current snake cages have been in use for about 4 years now, I believe, and the seals are still just fine. And even if they did come loose or flake off, replacing them is a snap and very cheap. :)

I sealed my edges with 100% silicone. and I sealed my wood with acrylic wood sealer by minwax.

you can get aquarium silicone at pet stores which is perfectly safe 100 % silicone .

I like the hot glue Idea lol