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Asphalt colorant
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Dave Chandler
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Joined: 31 Oct 2007
Posts: 676
Location: Mt Mitchell in North Carolina

PostPosted: Wed Jul 01, 2015 6:16 pm    Post subject: Reply with quote

If you can take an ounce or so and let it steep in mineral spirit or turpentine, it might make an excellent color additive for an oil based varnish. I have mine reduced to a thick tar, and it doesn't take much to make a fairly dark varnish. I use alazarin crimson to take it from yellow-brown to a nice nutty brown.
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Dave in the Blue Ridge
Southern Violin Association

"Success is the ability to go from one failure to the next with no loss of enthusiasm" Winston Churchill

"I took the road less travelled, and now I don't know where I am." Marco Polo
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byacey
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Joined: 29 Mar 2008
Posts: 99
Location: Edmonton, Alberta

PostPosted: Wed Jul 01, 2015 8:46 pm    Post subject: Reply with quote

That's what I did; I dissolved it with Varsol until I had a solution about as viscous as motor oil. It provides a nice color on it's own when mixed into varnish, a brown color leaning slightly towards red.
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Bill
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Dave Chandler
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Joined: 31 Oct 2007
Posts: 676
Location: Mt Mitchell in North Carolina

PostPosted: Thu Jul 02, 2015 9:06 am    Post subject: Reply with quote

And it makes a nice durable finish you can drive on.

Here's a violin I made some years ago, a red-spruce top, using this colorant, kinda boring I think now though. Can't remember if I added any red to this or not. I've used this on others that I left less intense, more like tobacco color which is nice too. The trouble is knowing where to stop applying color. I may be tempted to strip this and do something different now.



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Dave in the Blue Ridge
Southern Violin Association

"Success is the ability to go from one failure to the next with no loss of enthusiasm" Winston Churchill

"I took the road less travelled, and now I don't know where I am." Marco Polo
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Mat Roop
Senior Member


Joined: 24 Mar 2007
Posts: 828
Location: Wyoming Ontario

PostPosted: Sat Jul 04, 2015 9:48 am    Post subject: Reply with quote

Dave... I like that colour... if anything, it needs a bit of antiquing.
I sure would not be redoing it.... but then I'm a believer of the kiss principle.... and I sure hate doing things twice!
cheers, Mat
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Dave Chandler
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Joined: 31 Oct 2007
Posts: 676
Location: Mt Mitchell in North Carolina

PostPosted: Sat Jul 04, 2015 9:56 am    Post subject: Reply with quote

Matt, good idea, its a very nice smooth and even finish, maybe that needs to be broken up, just a little, instead of doing soemthing different.
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Dave in the Blue Ridge
Southern Violin Association

"Success is the ability to go from one failure to the next with no loss of enthusiasm" Winston Churchill

"I took the road less travelled, and now I don't know where I am." Marco Polo
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Chet Bishop
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Joined: 23 Mar 2007
Posts: 642
Location: Forest Grove, Oregon

PostPosted: Sat Jul 04, 2015 12:23 pm    Post subject: Reply with quote

I really like that color, too.
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Chet Bishop
http://www.bluefiddles.com
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