Brown or a very dark maroon is the "normal" color for purpleheart. There is a ton of good information here about trying to control the color: http://www.hobbithouseinc.com/personal/woodpics/purpleheart.htm

 

I've used purpleheart extensively in some of my guitars and other things.
I've always found that if you get a brown color from cutting or sanding, just let it sit about a day in open air, and the oxygen in the air will turn it purple again. I've done this many times, and it always works. Not sunlight, just open air, like on the bench in your shop.

I know I have guitars out there that I build 5-6 years ago with purpleheart, finished in Tru-Oil or Lacquer, and they are still purple. Darkened maybe a bit, but still purple.
Have no idea why beeswax would turn it brown, but I bet if you wiped it off with a bit of alcohol, it would turn purple again.

 

Purpleheart is brown inside. Only the outside bit is purple and you sanded through that. As Tennessee says, if left alone a day or two it will "bloom" purple again. ....... and then slowly head in the direction of deep red brown over time.

 

I saw a video online where a guy used the heat from a propane torch to accelerate the oxidation of the purple heart and turn it purple again in seconds. It was on a turned piece so it was easier to keep the heat moving evenly. Don't try it on the per now that there is beeswax on it. The wax will ignite. Don't put it in the oven either.

If it waspurple immediately before waxing, it is possible something re acted with the purple pigment.

Brian

 

PH will do what it wants. As with most colorful woods, the intense colors will react to exposure from air and UV light. There is usually a short term (few days) effect and then a long term (years) effect. I have read that PH usually turns brown long term, but occasionally there are pieces that retain the purple, although muted from the original.

 

I'm with bbasiaga about the heat. I read it somewhere and tried it on a cutting board I made for my wife's grandmother and it came out great. Slowly used a dewalt heat gun to bloom that color back out….still bright purple today after applying some salad bowl finish.

 

PH will do what it wants. As with most colorful woods, the intense colors will react to exposure from air and UV light. There is usually a short term (few days) effect and then a long term (years) effect. I have read that PH usually turns brown long term, but occasionally there are pieces that retain the purple, although muted from the original.

- splintergroup

That's my experience as well. It turns brown right after I mill it and then it goes back to purple and eventually it turns brown again.

 

I'm wondering if there's a reason my purpleheart turned brown when I applied beeswax to it. You can see on the handle the parts where I sanded the least remained purple but the rest just turned a boring chocolate brown color. Is dust from my orbital sander bag impregnating the purple ? It seems unlikely. I had the same thing happen to me on a mallet I made out of ipe wood. I made one for a friend and it stained the normal pretty burgundy color but on the one I made for myself it just stained a chocolate brown as well. View attachment 739479

This is about 5 years with auto clear coat. On my exterior sliding glass door handles they doe change
Color. Mill and light sand and finish , auto clear coat ,
Discount auto stores have it , about $17 per qt. Can’t beat it . Was a deft fan exclusively for 35 years,