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Filling in chipped dark bone
Posted: Thu Jan 30, 2025 7:26 pm
by millern
Here’s before and after of a minor repair of small missing bone scale sections on an old German Springer.
I simply repeatedly layered super glue and dry coffee that I ground into a powder in a mortar and pestle. I repeated alternating layers of each and “pushed” it into the “spaces” with a toothpick. When dried hard, I carefully filed and sanded it.
I might add a bit of jigging near the lower bolster, or leave “well enough alone”! (As my Dad would say”)
Re: Filling in chipped dark bone
Posted: Thu Jan 30, 2025 8:45 pm
by edge213
millern wrote: ↑Thu Jan 30, 2025 7:26 pm
Here’s before and after of a minor repair of small missing bone scale sections on an old German Springer.
I simply repeatedly layered super glue and dry coffee that I ground into a powder in a mortar and pestle. I repeated alternating layers of each and “pushed” it into the “spaces” with a toothpick. When dried hard, I carefully filed and sanded it.
I might add a bit of jigging near the lower bolster, or leave “well enough alone”! (As my Dad would say”)
That turned out very nice.
Re: Filling in chipped dark bone
Posted: Thu Jan 30, 2025 8:47 pm
by Bill DeShivs
I use finely ground instant coffee and casting resin for repairs on dark bone. It works very well.
Re: Filling in chipped dark bone
Posted: Thu Jan 30, 2025 9:23 pm
by Froe
Smart.
Re: Filling in chipped dark bone
Posted: Thu Jan 30, 2025 10:07 pm
by Gtrclktr-351
Stick around here and you just might learn something. Coffee and super glue or resin to repair bone. Who'd a thunk it?
Re: Filling in chipped dark bone
Posted: Fri Jan 31, 2025 12:02 am
by OLDE CUTLER
Only question I would have is when "layering" as you describe, new wet superglue with ground coffee colorant was deposited on cured dried superglue with coffee colorant. Will those layers stick together in the long run. The way Bill DeShivs described his process is the same as mine, the new material is mixed with colorant and applied in one "pour". Do you think that layering will be a problem? Keep us informed.
Re: Filling in chipped dark bone
Posted: Fri Jan 31, 2025 1:29 am
by millern
Time will tell, I guess. The resulting hardened paste seemed homogeneous enough. It filed and sanded down well enough after it cured a while. I prepped the areas pretty well. I doubt it will delaminate, but I’m not a chemist. I thought it would be worth trying since most folks have super glue and coffee! Thanks for your input and interest!
Re: Filling in chipped dark bone
Posted: Fri Jan 31, 2025 9:33 am
by Reverand
You did a good job on it! I am also curious to know how durable it is. I suspect that it will work, as super glue bonds well to powdered substances, but of course only time will tell.
I also use resin and one pour.
I like that you used coffee to color it. I like using natural materials as colorants when matching bone. Cinnamon, garlic powder, coffee, paprika, etc can go a long way to matching different shades of old bone!
Re: Filling in chipped dark bone
Posted: Fri Jan 31, 2025 12:08 pm
by millern
Re: Filling in chipped dark bone
Posted: Sun Feb 02, 2025 12:31 am
by glennbad
If you didn't tell us that was a repair, i don't think I'd be able to see it. Nice work!
Re: Filling in chipped dark bone
Posted: Sun Feb 09, 2025 12:13 pm
by millern
Thanks for the compliment!
