i just finished making my box 2 days ago and i wanted to put something on the inside edges to make sure its air tight and theres no leaks. All i have at my house is silicon (the sh!t yu put around sinks and stuff to keep it watertight) and i was wondering if this was ok
I believe it would work well, but what do I know. I have always used liquid nails. Seems to work well. If you want to go the extra mile, paint the inside of the box(after sealing) with (latex based?) paint. Cheap form of "resin", it wont add strenght, but it will allow for easy air flow and seal the pores in the wood.