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25th September 2015, 11:29 AM #1
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Black acrylic blanks turning transparent
Hi All
I turned some acrylic blanks with the main color being black and by the time I get to the correct dimensions I can see the brass tube like all the black die has been bleed out. I tired from 2 different sources and 4 blanks and 3 of them have go transparent. 2 of the blanks were very expensive so not happy.
I use polyurethane glue on my tubes.
No other color was effected just the black.
Does anyone know why this may have occurred?
I will post pics later.Cheers Rum Pig
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25th September 2015 11:29 AM # ADSGoogle Adsense Advertisement
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25th September 2015, 12:02 PM #2
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Are you painting the inside of the drilled hole in the blank with black paint?
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25th September 2015, 01:24 PM #3
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I cast my own black blanks for my wedding pens, I have to backpaint the inside of the blanks or the brass will be visible.
I could just add more black pigment when mixing, but I like a bit of depth to my blanks. I am guessing your bought ones are the same.Brad.
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25th September 2015, 02:05 PM #4
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Originally Posted by QC Inspector
I did not paint the inside as I though Black would be ok, I could understand something like yellow. Originally Posted by Ironwood
How does the glue go with the paint?Cheers Rum Pig
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25th September 2015, 02:46 PM #5
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I can tell you that I too make my own black blanks and even the most intense powders it is a good idea to reverse paint the blank after drilling for tube.
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25th September 2015, 05:29 PM #6
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to answer your question quickly Rum Pig They don't mix LOL the CA will disolve the paint if I use CA I insert the tubes quickly not giving it a chance to disolve the glue.
Cheers ian
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26th September 2015, 08:18 AM #7
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I use acrylic paint and epoxy glue, never had a problem.
Brad.
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26th September 2015, 09:30 AM #8
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+1 Originally Posted by Ironwood
I always paint the inside of the blank when doing any dyed or Pearlex blank. I also have a full range of nail polishes, cheap chinese stuff off Ebay, to try and colour match the blank. Plus if you want true black blanks you should be using black pigment, not the dye or Pearlex as these are the problems you can have, and for really any colour but black is the worst.Neil____________________________________________Every day presents an opportunity to learn something new
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27th September 2015, 08:24 PM #9
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Hay Rum Pig go to Bunning and buy some cement pigment and use that works well.
Davidgiveitagoturning @hotmail.com
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28th September 2015, 11:59 AM #10
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OK just so you know I did not make the blanks they were bought from 2 different sources.
I have been ill all weekend so I did not take any photos I will try this week.Cheers Rum Pig
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1st October 2015, 08:52 AM #11
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0C3A9645R.jpg0C3A9668R.jpg0C3A9651R.jpg
Here are the 3 pens
Sorry about the photos as I has a 2yr old helping me.Cheers Rum Pig
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