I wanted to redo the drywall so I tore it down and noticed some termite mud tunnels. I figure now is the time to treat the walls with a preservative and insecticide. (until we get the professionals out here to fumigate) I'm using a homemade concoction of boric acid, borax, propylene glycol(so it penetrates in the wood) and water. How long after I apply will it be ok to hang the sheetrock? I live in southern california. It was hot(90s) earlier last week but now its in the 60-70s.