Retrofitting china cabinets?

[Snagrio]

You're confusing "sealing" corners with sealing surfaces. Silicone aquarium sealant is thick, not spreadable- it's used to glue & seal corners so water doesn't leak out. Non-toxic once dry.

In a cabinet, you'd want to seal (coat) all the sides, bottom & top so moisture doesn't affect the wood, then you'd also want to "seal" the corner crevices (in case the water bowl got spilled, for example- you wouldn't want the cabinet ruined). I'm not sure if any "marine varnish/spar varnish" products are pet safe- probably not. Most waterproofing products are not made for use with sensitive pets- they're made to put on outside fences, wood floors, boats & decks- stuff like that. A quick search found this https://www.mychemicalfreehouse.net/...finishes.html-
it sounded promising but they're talking about human homes, not small pets, so don't go by their info. That's why I suggested the products for sealing ponds- those products are designed to be safe for fish & turtles, etc.

Search for "non-toxic waterproof sealant" & make sure you read all the fine print- you want something easy to paint on all sides. I've used waterproofing before- I think it was Thompson's water seal. It was easy to work with, dried clear. But depending on how/where it's used (how much moisture it's exposed to) it doesn't last forever, it needs re-coated in about 4 years. Just pulled this up:

Is Thompson's water Seal non-toxic?
Environmentally safe, will not harm plants, pets, fish, livestock, humans. Contains zero volatile organic compounds (VOC). No toxic fumes. Seals and protects with single application on most surfaces.



Bottom line- these projects take planning & research, so do your homework.

Had a thought, what about non-adhesive vinyl sheet cut to fit after the corners/edges are sealed? I've seen some enclosures utilize it. It's water resistant, easily to clean with and there's plenty of styles to choose from to find something "fitting." Plus I wouldn't have to use any kind of chemicals to put it in, just some small screws should do the trick.