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Turning Purple Heart

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Forum topic by doordude posted 04-30-2011 07:05 AM 4310 views 0 times favorited 13 replies Add to Favorites Watch
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doordude

1085 posts in 2740 days


04-30-2011 07:05 AM

Calling all or any turners. I was turning a pen today, using purple heart.as i finished up, thru all the sanding stages, i reallized the wood was no longer purple as when i started. looks more like a light mahogany.
WHATS THE DEAL…HERE? can anyone set me straight?


13 replies so far

View derosa's profile

derosa

1572 posts in 2593 days


#1 posted 04-30-2011 07:24 AM

The darker purple color was from the wood being in contact with air where the finished surface has only had recent contact. It will get darker with age.

-- --Rev. Russ in NY-- A posse ad esse

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superstretch

1531 posts in 2450 days


#2 posted 04-30-2011 07:50 AM

Cutting PH will lighten it. Exposure to air and light will turn it back purple.

After a while, it will turn a dark brown. Sanding tends to cause it to get kind of light brownish.

If you burn the PH with a sander or saw, it will be almost black and go deeply into the wood.

A lot of people bake PH beforehand to turn it very purple and get rid of a lot of the resins inside.

-- Dan, Rochester, NY

View Greg's profile

Greg

319 posts in 2631 days


#3 posted 04-30-2011 08:07 AM

“A lot of people bake PH beforehand to turn it very purple and get rid of a lot of the resins inside.”

What the?? Never heard of this trick. More info please!

-- You don't have a custom made heirloom fly fishing Net? http://www.Sierra-Nets.com

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superstretch

1531 posts in 2450 days


#4 posted 04-30-2011 02:45 PM

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Roper

1376 posts in 3470 days


#5 posted 04-30-2011 07:07 PM

Just like boiling madrone to get the red to really pop.

-- Roper - Master of sawdust- www.roperwoodturning.com

View christopheralan's profile

christopheralan

1126 posts in 3477 days


#6 posted 04-30-2011 07:21 PM

Purple Heart will change back to purple with exposure to UV sunlight. Don’t worry about the finish on it. I use a CA finish on my turnings, and then sit the item in the sun for a while. A day or two should do it. I don’t mess with heating, baking, boiling, toasting, or microwaving my woodwork. Others swear by it, but I just like using the big yellow thing in the sky. Good luck!

-- christopheralan

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doordude

1085 posts in 2740 days


#7 posted 05-01-2011 06:57 AM

Thanks to everyone that replied. i knew you LJ’ers would come through. i guess i’ll put my pen in sun light for awhile
before i finish,finishing the pen. thanks

View christopheralan's profile

christopheralan

1126 posts in 3477 days


#8 posted 05-01-2011 04:31 PM

I just turned some PH for the wife and it put it in the sun for about 3 hours and it was finished. It looked great! Lemme know how yours turns out.

-- christopheralan

View Halvy's profile

Halvy

7 posts in 2228 days


#9 posted 08-25-2011 09:41 AM

This may be a totally bad idea, but I got my hands on one of those Nuwave ovens: http://www.mynuwaveoven.com/nuwave-infrared-ovens/nuwave-oven-classic.asp

Could this be used to help speed along the drying process of green lumber?

I heard that Purple Heart develops a dark rich color when heated. Do you think baking my pen and bowl blanks will give me this deepen colorization ?

View degoose's profile

degoose

7216 posts in 3112 days


#10 posted 08-25-2011 09:59 AM

I use a LOT of purple heart and make sure that it is exposed to sunlight or UV from flourescent lighting prior to finishing… sometime a few hours sometime a few days… It will eventually turn chocolate brown but not for many years… Hope this is some help

-- Don't drink and use power tools @ lasercreationsbylarry.com.au

View Halvy's profile

Halvy

7 posts in 2228 days


#11 posted 08-26-2011 09:19 PM

So, it is more about the UV and not the heat. Let me ask this, If I use the “super Glue…Acrylic” method of polishing my pens will that seal the wood and stop the darkening process? Or should I let the pen age (or put under a UV light) to get the desired color before I finish with the acrylic?

Halvy

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superstretch

1531 posts in 2450 days


#12 posted 08-26-2011 09:39 PM

Heat does the job too.. It activates the resins in the wood giving it a vibrant color. I posted a page a while back about the effects of cooking PH—

Found it! http://www.hobbithouseinc.com/personal/woodpics/purpleheart.htm

-- Dan, Rochester, NY

View Halvy's profile

Halvy

7 posts in 2228 days


#13 posted 08-27-2011 05:39 PM

Dan, thanks for the detailed and comprehensive analysis on purple heart color and the other work on photo color correction. Excellent information for me and anyone else working with exotic woods, and buying on the Internet.

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