Originally Posted by burk
A few rubber stoppers from your local lab supply company does a great job of plugging up the bottom bracket and head tube (if you do remove everything) and contains the mess pretty good (I use duct tape over vent holes).
If you seal everything up that well, how does the solvent evaporate so the coating can dry and harden?
The idea is to wind up with a dry, waxy, rust-inhibiting film, not a frame full of liquid.