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Crack filling (Read 732 times)
 
Bruce Kamp
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Re: Crack filling
Reply #15 - Dec 10th, 2017 at 11:31am
 
Had some success. Here is a pic of a rough piece of the white oak I am working with. I used brown sand and epoxy to fill a crack. This shows two different mixes. One on left is just brown sand the other is a mix of light brown and brown sand and epoxy.
I also applied a coat of natural colored Danish oil.
Of course, not an eaxact match because of the grain, etc. Hoever, I do think it does a decent job of blending.
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Bruce Kamp
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Re: Crack filling
Reply #16 - Dec 10th, 2017 at 11:32am
 
This is what I used.
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Daniel Hayes
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Re: Crack filling
Reply #17 - Dec 10th, 2017 at 1:09pm
 
Wouldn't sawdust be easier on your tools?  I'm very new at this whole woodworking thing but this seems odd.
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« Last Edit: Dec 10th, 2017 at 1:11pm by Daniel Hayes »  
 
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Glenn Roberts
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Re: Crack filling
Reply #18 - Dec 10th, 2017 at 7:16pm
 
Sand?
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Bruce Kamp
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Re: Crack filling
Reply #19 - Dec 10th, 2017 at 8:38pm
 
It is synthetic sand. Not as hard on the tools.
Sawdust does not give the same effect. Al least the times I have tried it.
For the initial smoothing I will sand it, not turn it. I will rough turn, fill void, sand then fine turn.
I have also been trying some of the colors for special effects. I will show some pics when get a more finished piece.
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Bruce Kamp
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Re: Crack filling
Reply #20 - Dec 24th, 2017 at 2:25pm
 
I made these segmented maple bowls for my grandsons. One is a baseball player the other a swimmer. I first Dremeled out the image and then filled it with black synthetic sand. Added thin CA. Then sanded it smooth. Finish is poly. It looks like magic marker but it is actually inlay. I have tested other colors with both CA and epoxy and they seem to hold their color.
I have also used the sand on other projects where I have had to turn the sand. I am not sure what it is made of but it actually turns something like resin. I will try to post a picture of the sample board I created.
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David Hill
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Re: Crack filling
Reply #21 - Dec 25th, 2017 at 7:59pm
 
Oooooh—— be careful with that!! Shocked
If it’s silica sand, throw it out or use it in a terrarium.  Silica (quartz) is REALLY hard, getting close to some metals.  At that it’ll at dull or destroy the edge on your tools.  Your first clue wiil be sparks—- then it’s too late.  Sad
I’lll say that came from the “been there, done that” file.
Sometimes you can find other sands — say calcium based & those are ok—> softer. Another that comes to mind is dyed Howlite.
Hope I saved your tools!  Undecided
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Don Stephan
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Re: Crack filling
Reply #22 - Dec 25th, 2017 at 8:09pm
 
Is silica dust harmful to the lungs?
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Jurriaan Kalkman
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Re: Crack filling
Reply #23 - Dec 27th, 2017 at 5:58am
 
The safe answer is YES, you should consider any dust harmful. Silica dust certainly is.

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Bruce Kamp
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Re: Crack filling
Reply #24 - Dec 31st, 2017 at 3:45pm
 
I really do not think it is silica sand. I do not see sparks. Plus, when I do grind it it sort of peels off like resin.
So far this has worked. I usually do not apply it until I am close to a finished profile. I use 40 grit sanding disks to level it off and then either finish with a fine cut or continue sanding through the grits. When I do have to do any cutting I try to use and old scraper. I do have to sharpen it more often than normal of course.
I just thought that this gives me another form of enhancement.
Thanks for all the advice and comments.
Bruce
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