Keeping paint/India ink from bleeding into grain next to groove - Woodworking Talk - Woodworkers Forum
 
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post #1 of 5 Old 06-22-2016, 08:12 PM Thread Starter
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Keeping paint/India ink from bleeding into grain next to groove

I need to make several crisp black lines in BB plywood. The tip of a hunting knife makes a nice shallow groove.
I want to color the groove black and then sand away the black on the plywood leaving the black in the groove. How do I keep the black out of the grain next to the groove.
Then apply finish to fill in the groove (will that happen with water borne poly?) with finish or clear grain filler?
Another way to do this might be to route a 1/8x1/8 inch groove and glue in a 1/8x1/8 strip of wood, sand it flush with the plywood and then be dyed/stained it black and glue in place.
Comments/ideas?
Thanks
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post #2 of 5 Old 06-22-2016, 09:32 PM
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I'd put a coat of poly on first ... to seal the grain. Give it the full 3 or 4 days to fully cure. Then do the black lines, sand and put on another coat of poly.
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post #3 of 5 Old 06-22-2016, 09:54 PM
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Mikechell is correct, the wood needs to be sealed for what you are doing. I believe I would use a dewaxed shellac such as Zinsser Sealcoat. It's mixed with alcohol the same as the ink so more likely to be compatible.
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post #4 of 5 Old 06-22-2016, 09:57 PM
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Like mikechell said cut the groves THEN polly you can use wood filler dyed black pack it in let dry sand smoth another polly coat. ive done that before with good results

For every improper action there is an equal and totally horrible reaction. Grandpas take on Newton as applied to wood working.
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post #5 of 5 Old 06-23-2016, 12:44 AM
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Look at a decorative wood carving technique called kolrosing, where the color is rubbed into the grooves. Similar to scrimshaw.
If you want your efforts to be sophisticated, fine line designs, then paint is a mistake.
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