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

    Messages:
    49
    Joined:
    Dec 31, 2014
    Location:
    Poznan/Poland
    Shooter:
    Multi Format
    PVC? ABS? I'm just curious.
     
  2. locutus

    locutus Member

    Messages:
    447
    Joined:
    Jun 9, 2009
    Location:
    Finland
    Shooter:
    Multi Format
    Looks like polystyrene to me.
     
  3. neilt3

    neilt3 Member

    Messages:
    161
    Joined:
    Nov 23, 2014
    Location:
    United Kingd
    Shooter:
    Multi Format
    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

    Messages:
    521
    Joined:
    Sep 20, 2013
    Location:
    Southern Cal
    Shooter:
    Multi Format
    That would be my guess, too.
     
  5. DREW WILEY

    DREW WILEY Member
    Ads Enabled

    Messages:
    6,238
    Joined:
    Jul 14, 2011
    Shooter:
    8x10 Format
    Depends. Even darkslides have changed plastics over the years. ABS and styrene are common but not universal.
     
  6. WilmarcoImaging

    WilmarcoImaging Member
    Ads Enabled

    Messages:
    511
    Joined:
    Apr 2, 2017
    Shooter:
    Multi Format
    I would say glass filled ABS.
     
  7. harlequin

    harlequin Member

    Messages:
    111
    Joined:
    Apr 30, 2008
    Location:
    Los Angeles/San Antonio
    Shooter:
    Medium Format
    I heard from someone who worked at holder facility in Burbank CA, ABS and Cycolac.

    Hope this helps you....

    Harlequin
     
  8. mshchem

    mshchem Subscriber
    Ads Enabled

    Messages:
    2,181
    Joined:
    Nov 26, 2007
    Location:
    Iowa City, Iowa USA
    Shooter:
    Medium Format
    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?
     
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies. If you have a Photrio account, please log in (and select 'stay logged in') to prevent recurrence of this notice.