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  1. #1
    Join Date
    Sep 2008
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    Default Purple heart not purple??

    ok quick question

    i had a purple hear pen blank that looked purple cut it with the bandsaw yup purple trimed it with the disc sander no change trimmed it with my barrel trimmer what great colour then i turned it in the lathe and its turned a muddy sort of colour

    i finnished turning it and im really happy with its shape this is also kinda special as i have been wanting to turn Purple heart for ages and i have been wanting to give it to my girlfriend so how do i get the rich colour back? should i just wait for it to age a bit in the sun?
    happy turning

    Patrick

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  3. #2
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    Default

    You should have finished it when it was purple, you'll have to sand it back to get the colour back but that'll probably make it undersize

  4. #3
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    no the thing was it was purple on the outside when i turned it but when i turned it down thats when it changed to a muddy colour you could see it when i was roughing it out the flat sides were purple and the turned sides were brown
    happy turning

    Patrick

  5. #4
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    Default

    If you introduce to much heat through sanding you loose the colour.

    In trying to learn a little about everything,
    you become masters of nothing.

  6. #5
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    Default

    Quote Originally Posted by FRB Design View Post
    If you introduce to much heat through sanding you loose the colour.
    no heat could this have been sun damage?
    happy turning

    Patrick

  7. #6
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    Default

    leave it overnight unsealed and it should be purple in the morning, thats what i usually do

  8. #7
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    Default

    thanks ill try that
    happy turning

    Patrick

  9. #8
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    Jun 2004
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    Default

    Ultra violet light will make it purple again. Heat generated from turning/sanding will make it go brown. Leave it in natural sunlight for a few minutes (10-15) and make sure you rotate it a few times. From what I understand, all purpleheart will go brown eventually though... best of luck and look forward to pics when you're done
    It's only a mistake if you don't learn from it.

  10. #9
    Join Date
    Nov 2007
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    Arrow

    Purpleheart, or Roxinha as it is called here in Brasil, is a very commonly used timber for all sorts of things-farm gates, building timber and furniture.

    The timber turns brown when left exposed and untreated in the weather.

    It seems too that older pieces may behave differently. I Tuned a piece for a friend here. It was from a shaed his father had built more than 70 years ago. The timber had been painted. When turned and sanded the colour was nothing like purple.

  11. #10
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    Apr 2005
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    Quote Originally Posted by corbs View Post
    Ultra violet light will make it purple again. Heat generated from turning/sanding will make it go brown. Leave it in natural sunlight for a few minutes (10-15) and make sure you rotate it a few times. From what I understand, all purpleheart will go brown eventually though... best of luck and look forward to pics when you're done

    Neil
    ____________________________________________
    Every day presents an opportunity to learn something new

  12. #11
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    Default

    I've done a great deal of work with purpleheart over the years. Place it in a sunny window for a couple of days, rotating it occassionally. It will turn back to bright purple. The best finish I;ve found for locking the color in is shellac. Finished a purpleheart box with shellac more than a year ago and it's still vivid purple. Haven't found anything else to lock in the color better though.
    When all is said and done, there is usually a whole lot more said than done.

  13. #12
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    Sunshine is the trick - here in the West a few hours hanging in the sun NO SHADOWS and it goes back to purple again!!

    JD
    "No point getting older if you don't get smarter"

  14. #13
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    Sep 2006
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    Default Purpleheart and Sapwood

    I have been rummaging in my stash. The Purpleheart in amongst others varies from figured to colour and sapwood with tight curly figure.

    My conclusion is the sapwood that is brown will be exciting in its own right.
    Up to my ears in making machinery tick and purr but intend in the new year to turn again.

    Have fun with your Purples and browns I surely will.

    Richard Raffan I am fond of quoting tells me all timbers revert over time to plainish and some downright ordinary. Having said that the modern day finishes could prolong the beauty longer.

    Have fun with Xmas as well.
    Kind regards Peter.

  15. #14
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    Sep 2008
    Location
    Hamilton, VIC
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    Default

    I have just finished turning a dozen purpleheart pens for Christmas presents. I am so over that timber at the moment but that's because it's all I have seen.
    When I finish shaping and sanding the pen, I finish it with a wipe on oil varnish blend that I have made (Danish oil and Minwax WOP) and place it on a peg board that I can sit in the sun while the finish dries. The pen goes from turdy brown to vivid purple in about 2 hours. The first pen I turned at the start of the year was brown when I finished it. I gave it to my wife who wasn't all that interested as it wasn't the nice purple the blank had been but over the next few days, the colour would turn and it is now a lovely shade of purple.

    Cheers

    Paul

  16. #15
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    Sep 2008
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    Queensland
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    Default

    thanks guys you have all put my mind at ease i left it in the lathe last night and when i checked it this morning the shavings were nice and purple and the blank was changing more purple i think ill put it in the window sill and finish it in a few days

    thanks guys ill show pic's when its done
    happy turning

    Patrick

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