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Old 08-11-2017, 07:54 AM   #1 (permalink)
 
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Default Purple heart and CA glue

Hello!

I turned a purple heart pen blank and when I put my CA glue finish, it instantly became brown... When I turned another one and put shellawax, it stayed purple... Is there a chemical effect with the CA glue? Is there a way to keep the purple colour with CA?

Thank you
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Old 08-11-2017, 09:08 AM   #2 (permalink)
 
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I was just watching a YouTube video yesterday about that.

Bring Out The Purple in Purpleheart
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"It's never too late to have a happy childhood"
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Old 08-11-2017, 10:08 AM   #3 (permalink)
 
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Quote:
Originally Posted by Math2010 View Post
Hello!

I turned a purple heart pen blank and when I put my CA glue finish, it instantly became brown... When I turned another one and put shellawax, it stayed purple... Is there a chemical effect with the CA glue? Is there a way to keep the purple colour with CA?

Thank you
I've done several purple heart pens with a CA finish, colour enhanced using a blowtorch first and none of them have lost their intense colour. Maybe there's a difference in CA's
Others here may know better.

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Old 08-11-2017, 11:32 AM   #4 (permalink)
 
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I have used Purpleheart in for pens and a few other misc. projects. In my experience, machining the wood is what turns the wood brown. I haven't had that problem with the finish. As DJBPenmaker said, a blowtorch will bring back the color. I find it easier to control the color change with a heat gun. If you can, heat the wood while the lathe is on WITHOUT the bushings in place. I use unused brass tubes as spacers. The bushings absorb a lot of the heat so it is hard to get a consistent color across the wood.

If your CA glue ends up being the actual cause, toss it and get a different CA glue. I haven't used every glue out there but I can confirm that 2-P10 and Bob Smith Industries are both great quality and won't change the color of Purpleheart.
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