14 Attachment(s)
Hard Burnishing Pure Tung Oil and White Spirit (1:1 mix)
OK...
I have used two samples for this demonstration.
a. a Fiddle back Red Gum strip and
b. a Birds-eye Huon Pine block. Fig.1 and 2
1. Sand the raw timber starting at 100g and going through 120,150,180,240 grits then finishing at 400 grit. See Fig.3 and 4 (Note that Pic 1 and Pic 4 are out of order. They should be reversed)
2. Give the work piece a rub down with a tack cloth or a cloth and Mineral turps. (Just wet the rag, don't drown the timber.)
3. Once the piece is dry, mop your 50/50 mix of Oil and White Spirit onto the surface of the wood. You will be looking for a glistening coat, which does not disappear immediately into the wood. See Fig.5 and 6
4. Allow the oil/spirit mix to sit on the timber for 20 -30 minutes.30 minutes is probably best. See Fig.7
5. After the incubation period is over, begin wet sanding. Start with the 400 grit pad you have just dry sanded with. You will get adequate (ideal) sanding by running up and back along the section of surface you are working on 5 times each way. A total of 10 passes.
6. You will notice a slurry form as you sand. This is oil and saw dust. the friction caused by sanding wet generates enough heat to polymerise the Tung Oil. Your incubation time was what allowed the oil to penetrate the wood. (Fig.8 and 9) shows what the slurry should look like. Note that it is not a great gluggy mess but a thinner, easily moved slurry.)
7. Continue up through the grits 800, 1200, 1500 and 2000. If you can get 4000, I would use this too. You will notice that the slurry gradually disappears until at 2000g it is essentially gone.
8. Now vigorously wipe the surface down with a dry cotton cloth.
9. You are finished.
Figs.10, 11 and 12. show the finished boards, looking down on them and along the surface. Note how subtle variations in the grain are now clearly visible.
Adding Wax to the surface (if you wish). Note that the burnishing renders the wood resistant to radiant heat and hot and cold liquids, waxing may affect these properties.
I used UBeaut EEE cream first then UBeaut Traditional Wax after. This was done within 10 minutes of finishing the burnishing.
Fig.13 and 14 show the boards with Wax at the right hand side of the pencil line.
So you get a brilliant finish, with high grain resolution, which is dry pretty much immediately after you finish. Any questions, please PM me.
Regards,
Rob