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 Post subject: Dying a Coloured-Plastic MF8 Kilominx Black
PostPosted: Sat Apr 14, 2012 11:38 pm 
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Location: Sioux Lookout, Canada
I dyed my coloured-plastic MF8 Kilominx black and applied stickers. It didn't go perfectly, but I'm very happy with the results.

I used 32g (1 box) of powdered Rit Dye Black #15 in 525 mL of water and 225 mL of acetone. This was a 30% acetone solution that, in retrospect, was probably too strong. I kept the solution in the range 40° to 50° C with a water bath surrounding the dye solution container. As this was a multi-coloured plastic puzzle, I was focused on seeing how long it would take to get a consistent colour. I kept the parts in the dye solution for 2 hours and 20 minutes. They stopped darkening after about 2 hours. In the end, I was not successful as about half of the parts are a dark-reddish-brown. The other half are jet-black. Unsurprisingly, some parts showed minor surface erosion, particularly the centres and other smooth areas. The effect on the assembled and stickered puzzle is a subtle matte mottling that goes well with the shade variation of the pieces.

Prior to this project I solved the kilominx twice without adding lubrication and with only a cursory tension adjustment. It was rough and catchy. As I reassembled the dyed puzzle, I thoroughly lubricated it and carefully set the tensions. As a result, it turns very well. I'm very happy with my dyed and stickered MF8 Kilominx.

Well.. I can't seem to upload my photos (it is giving me an error), so here is a link to the flickr set I made, with lots of photos and descriptions. I welcome your comments and questions.

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 Post subject: Re: Dying a Coloured-Plastic MF8 Kilominx Black
PostPosted: Sun Apr 15, 2012 2:08 am 
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Location: Bay Area, California
Pete the Geek wrote:
I dyed my coloured-plastic MF8 Kilominx black and applied stickers. It didn't go perfectly, but I'm very happy with the results.
I wonder if perhaps two packs of Rit dye would change things? 30% concentration seems high and 2 hours seems long.

I have a colored plastic MF8 Circe Megaminx awaiting dying. I just haven't had the time for a several hour project (when you factor in setup and cleanup).

I'll video the process and report on the results when I finally get around to dyeing it.

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 Post subject: Re: Dying a Coloured-Plastic MF8 Kilominx Black
PostPosted: Sun Apr 15, 2012 6:56 am 
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Location: Jarrow, England
When I dyed my Dioctipoid, I used three heaped teaspoons of Rit in a 25% solution of acetone (total volume about 0.75 litres) and left the pieces in for about 2.5 hours. They all went very black, and the surface was still very smooth. I suppose how effective the dye takes is very dependent on the plastic you are dyeing - there are many types of ABS.

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 Post subject: Re: Dying a Coloured-Plastic MF8 Kilominx Black
PostPosted: Sun Apr 15, 2012 11:31 am 
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Location: Sioux Lookout, Canada
bmenrigh wrote:
I wonder if perhaps two packs of Rit dye would change things? 30% concentration seems high and 2 hours seems long.
I don't know which of the colours didn't take the dye, though I suspect it is the darker colours. If I did it again, in addition to lowering the concentration, I would consider dying light and dark colours separately.

bmenrigh wrote:
I have a colored plastic MF8 Circe Megaminx awaiting dying. I just haven't had the time for a several hour project (when you factor in setup and cleanup).
I look forward to your results. There is not a lot of shared information on dying coloured plastic puzzles.

Finally, I recovered 650 mL of solution, but I don't really know the concentration of acetone (some of the solution evaporated and I added another 125 mL of water near the end). I think I can work it out from the specific gravity.

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 Post subject: Re: Dying a Coloured-Plastic MF8 Kilominx Black
PostPosted: Sun May 13, 2012 5:05 am 
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http://www.hknowstore.com/locale/zh-CHT ... 794bfe07e1

Black available again!


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 Post subject: Re: Dying a Coloured-Plastic MF8 Kilominx Black
PostPosted: Sun May 13, 2012 7:24 am 
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Joined: Mon Aug 27, 2007 3:50 pm
Location: Copenhagen, Denmark
woohoo! I just ordered a black plastic one! awesome

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