Prepare the work area by placing plastic sheeting beneath the wood item you'll be working on. Clean the item by lightly wiping away any dust with a dusting cloth.
Don the rubber gloves and face mask before you begin applying the tung oil to the wood.
Apply the tung oil in thin layers by wiping the applicator pad across the piece, left to right, evenly.
Allow the oil to seep into the wood for 15 minutes. Then wipe away excess oil with a clean, lint-free staining cloth.
Wait an hour and apply another coat of tung oil. Let the oil sink into the wood for 15 minutes; wipe away the excess oil with another clean staining cloth. Repeat the process a third time if your wood item will remain outdoors.
Buff the wood with a soft polishing cloth to give it a sheen.