1. I want to fix a small gap(about 1/8 inch by 1/8 inch by 1/8 inch deep. I have read to fill it with sawdust of the material and apply a small coating of CA glue. This supposed to yeild non-visible results.
2. I tried it on a scap piece of mahogany with poor results. The fixed area turned black in color.
3. Perhaps I used the wrong type of glue. I used a Loctite clear cyanoacrylate glue with no follow-up accelerator.
4. What should I use and/or do differently?
Thanks,
Rayw3
Replies
I've used 40 grit sawdust from the same board mixed into a really thick paste (i.e lots of saw dust to glue ratio) with Titebond Original w/ good results. The Titebond Original dries a lighter color & the high percentage of larger sawdust shavings allows the wood to act like the real thing as far as sanding & accepting the finish. Leave the repair proud to sand it down to bare wood.
Thanks. I will give it a try.
Rayw3
1/8x1/8x1/8 is pretty small. If it is that shallow and that "square" why not cut a small piece of scrap mahogany to size and glue it in proud, sand even?
Do you mean it is too dark after a top coat of finish? If you mean before finish, it should disappear after.
It is actually a little space wherein a walnut spline did not full seat against the saw cut in the mohogany mitered corner. It was black in the scrap piece before and after sanding with no finish applied. I will try applying my seedlac finish on the scrap piece.
Thanks,
Rayw3
I've tried the same thing with CA and gotten the same result. I think that trick only works in ebony. Mahogany just darkens too much when saturated. I have successfully used epoxy mixed with a combination of mahogany dust and colloidal silica. The silica lightens it up a bit. I don't see why you couldn't do the same with the mahogany dust, silica and then CA, but I haven't tried it. Either way it yields a monochromatic patch; I like Stan's idea.
Sometimes if the gap is small, simply filling it with straight epoxy will let it take on the color of the surrounding wood and provide a sufficient disguise.
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