RE: Vinyl dyes

Date: Fri May 09 2003 - 14:59:42 EEST

I got my vinyl dye at an automotive paint supply store.
They can custom match any color.

It was $10.00 for a spray can of standard color.
I also used it to color some molded plastic parts.
I cant scrape the color off.

I found it worked great on FDM ABS parts.

Doug Johnson
  -----Original Message-----
  From: []On Behalf
Of Karsten
  Sent: Thursday, May 08, 2003 9:27 PM
  To: Neil Hopkinson;; RP Mailing List; Ian Gibson
  Subject: Re: Vinyl dyes

  Where can I get this vinyl ink to try out?
  Sounds promising.
  I use RIT dye
  Karsten A.

    ----- Original Message -----
    From: Ian Gibson
    To: Neil Hopkinson ; ; RP Mailing List
    Sent: Tuesday, May 06, 2003 8:08 PM
    Subject: RE: Vinyl dyes


    I was told that DTM did in fact supply coloured powders to selected
customers who wanted to make parts in standard (e.g. computer brown/grey)
colours. This didn't work very well for obvious, marketing reasons. This was
one of the reasons we looked at colouring in-situ.

    Certainly there would have been differences in the laser/material
interaction for different colours/additives. We noted changes in thermal
conductivity for example, although it is probably not so much due to the
colour as some of the other material properties (molecule size, lattice
structure, etc.). For homogeneous mixtures this would be quite easy to
characterise and program. Where you are making functional gradients (i.e.
changing the mixture), this would be more difficult.


    At 10:22 AM 5/6/2003 +0100, Neil Hopkinson wrote:

      I assume you have coloured the parts after they have been built. Ian
Gibson at Hong Kong University has tried adding colour and graphite to SLS
material prior to sintering. Has anyone tried using coloured powders for SLS
and does it affect the ability of the powder to absorb the laser or any
other processing parameters?


        -----Original Message-----

        From: []On
Behalf Of

        Sent: 02 May 2003 17:28

        To: RP Mailing List

        Subject: Vinyl dyes

        Is anybody using vinyl dyes for coloring SLA, SLS or other prototype

        I recently used this to color some plastic parts and it worked

        It is a penatrant, not a coating, so it did not fill in the small
text on the piece I colored.

        It also seems to be quite durable.

        Just curious.

        Doug Johnson

        ProtoCall, LLC

        507 West College Avenue

        Waukesha, WI 53186-4501


        262.896.8945 fax

    Dr. Ian Gibson
    Department of Mechanical Engineering
    The University of Hong Kong
    +852 2859 7901 (O)
    +852 2858 5415 (F)
    +852 2817 1784 (H)
    +852 9873 8281 (M)

    Still crazy after all these years.


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