Can you waterproof a wooden vivarium with spray foam?

[swords]

Hey guys,
Well so far I've boughten two 10 oz tubes of Perennator black aquarium silicone for building the wood coated fiberglass tub surround structure. Supposedly this is better for gluing structures together so I'll try a bead of this on all edges as I join them. Then I'll smooth a thick gob in the completed joins once the edges are screwed together. I still have to get my dimensions perfected in some graph paper before I go have the wood and tub surround cut and rent a truck to bring the panels home cos my little Focus hatchback can't carry much above a 40 gallon breeder tank or 24" x 48" panels.

I also got my 4x 96 W 6500K Power compacts by mail, but my ballasts are backordered so I've gotta wait a few more days for them to ship. Hopefully this will be enough light over the 60" L x 24" W x 36" H chamber.

I also got two 145 GPH 2" x 3" submersile pumps for the drip wall. I'm also thinking of trying to hook up to a low flow garden/patio mister with one of them. They have the same diameter tubing as the output of my pump but it may not be enough to blast it out, but I'm into experimentng and seeing what happens. It might not be the same fine floaty mist as a standard frog tank but if it works enough to water the plants once or twice a day on a timer that'll be a great time saver since most everything will be mounted on twigs/branches/back wall.

[luckygrower]

I don't know if you thought of this but why not use a piece of pond liner and glue it to the plywood (pond liner is black visqueen and very thick), you can the put the foam or what ever you want over or attatched to it, the foam and silicone will glue very well to it.

[swords]

That was my first idea, I didn't know if the good stuff foam would adhere to a pond liner or not. A pond liner cut to size off ebay would be way cheaper than the fiberglass tub surround.