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  • Re: pigmenting epoxy

    From Theo@21:1/5 to TimW on Tue Dec 24 14:44:40 2024
    TimW <timw@nomailta.co.uk> wrote:
    off the shelf epoxy adhesive seems to be opaque and yellowish generally.
    Is there a way to darken it? Or is there a clear one I could buy in
    small quantities?

    There are 'clear' epoxy adhesives but I think they still have a slightly yellowish tint, especially as they age. The kind of epoxy used for resin pouring does seem to have a clearer look to it - not sure if that's a
    different chemistry (maybe thinner so less air bubbles?).

    For darkening it, surely you can add any pigment you feel like? Artists pigments are available in many colours, or just something simple like carbon black.

    Theo

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  • From Andy Burns@21:1/5 to TimW on Tue Dec 24 14:40:59 2024
    TimW wrote:

    off the shelf epoxy adhesive seems to be opaque and yellowish generally.
    Is there a way to darken it? Or is there a clear one I could buy in
    small quantities?

    Yes, you can get specific pigments for it, but (within reason) almost
    anything can be used ... this chap does lots of experimentation

    <https://www.youtube.com/@peterbrownwastaken/search?query=dye>

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  • From TimW@21:1/5 to All on Tue Dec 24 14:37:26 2024
    off the shelf epoxy adhesive seems to be opaque and yellowish generally.
    Is there a way to darken it? Or is there a clear one I could buy in
    small quantities?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From N_Cook@21:1/5 to TimW on Tue Dec 24 16:46:37 2024
    On 24/12/2024 14:37, TimW wrote:
    off the shelf epoxy adhesive seems to be opaque and yellowish generally.
    Is there a way to darken it? Or is there a clear one I could buy in
    small quantities?

    I used to make convincing copies of unobtanium brown/black bakelite
    knobs for old radios by taking a mould of an original and casting epoxy
    with ground up asbestos-free bakelite scrap mixed in the resin part

    --
    Global sea level rise to 2100 from curve-fitted existing altimetry data <http://diverse.4mg.com/slr.htm>

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  • From TimW@21:1/5 to Andy Burns on Sun Dec 29 23:37:08 2024
    On 24/12/2024 14:40, Andy Burns wrote:
    TimW wrote:

    off the shelf epoxy adhesive seems to be opaque and yellowish
    generally. Is there a way to darken it? Or is there a clear one I
    could buy in small quantities?

    Yes, you can get specific pigments for it, but (within reason) almost anything can be used ... this chap does lots of experimentation

    <https://www.youtube.com/@peterbrownwastaken/search?query=dye>

    Interesting, thanks.
    I found some artists charcoal sticks in a drawer and ground one up a
    bit. Worked a treat.
    TW

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