For the second application on the following day, mix a ratio of 1 part Pure Tung Oil to 1 part thinner. If the wood is very dense and non absorbent you may find a thinner ratio is required. Possibly 1 part Pure Tung Oil to 2 parts thinner. If it is an old floor and absorbing a lot of oil on the second day, a 2 parts tung oil to 1 part thinner will work better.
The objective is to get as much oil into the wood without letting it build up on the surface. The ratio of thinner to oil can be varied, use your own judgment. Multiple THINNER COATS are always better than a few thick coats.
Pure Tung Oil works by oxidation with the air and polymerizes. So you want to get as much oil in the floor as soon as possible, but you do not want to apply the Pure Tung Oil with out thinning. It takes too long to dry and will sit on the surface and dry leaving a frosted appearance. Pure dry tung oil left on surfaces will also scuff leaving white marks like dry skin. So always thin Pure Tung Oil in floor applications and wipe off the excess.
Using the 1 part Pure Tung Oil to 1 part thinner, apply the same way as the first application with a brush or sponge mop. Apply the oil in several coats one after another till you get a uniformly glossy surface that stays glossy for 20 to 40 minutes. After the waiting period, wipe the oil off the surface with a "T-shirt" type material. When wiping you do not need to scrub the surface. Just gently and evenly wipe excess oil from the surface.
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