What kind of plastic is used to make large format holders?

Discussion in 'Large Format Cameras and Accessories' started by zozur, Jan 17, 2018.

  1. zozur

    zozur Member

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    PVC? ABS? I'm just curious.
     
  2. locutus

    locutus Member

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    Looks like polystyrene to me.
     
  3. neilt3

    neilt3 Member

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    Some of mine are some sort of hardwood .
    One type I have seems to be mostly metal .
    Other's , some sort of plastic .

    So I guess it varies .
     
  4. Kawaiithulhu

    Kawaiithulhu Subscriber

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    That would be my guess, too.
     
  5. DREW WILEY

    DREW WILEY Member

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    Depends. Even darkslides have changed plastics over the years. ABS and styrene are common but not universal.
     
  6. WilmarcoImaging

    WilmarcoImaging Member

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    I would say glass filled ABS.
     
  7. harlequin

    harlequin Member

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    I heard from someone who worked at holder facility in Burbank CA, ABS and Cycolac.

    Hope this helps you....

    Harlequin
     
  8. mshchem

    mshchem Member

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    This is a really good question. It is definitely a high impact material. It's very stable doesn't warp or bow when warm. The holders have a smooth surface, My guess would be a blend of some sort of styrenic and possible polycarbonate. High Impact polystrene, ABS. Doesn't look like it has a significant amount of glass fiber or you would be able to see it. Doesn't mean it's not filled with glass or mineral. This is a link to one Covestro's (formerly Bayer) PC/ABS blends there's thousands of different concoctions out there.
    https://www.plastics.covestro.com/en/Products/Bayblend

    The darkslides almost look like a old thermoset like Bakelite or melamine filled with some sort of mineral or fiber. It's not an ordinary plastic.

    Is there still NEW Fidelity and Lisco film holder being manufactured?