Replacing light seal (spongy stuff)

Discussion in 'Photography' started by RichK, May 14, 2006.

  1. RichK

    RichK Guest


    Need a good hint on removing old light seal in a 35mm camera. What solvent
    to use to dissolve the old glue?

    I'm replacing the seal myself. Bought a small sheet and will cut as needed.
    Started to remove the old seal, which is disintegrating and sticky. Using
    Goo Gone, but it's not working very well.

    Can anyone enlighten me on what will work better. Thanks.

    RichK, May 14, 2006
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  2. Meths
    badger.badger, May 14, 2006
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  3. RichK

    RichK Guest

    Can you be less criptic?

    RichK, May 14, 2006
  4. you can use isopropylacohol ( ipa) or nafta, also known as cigarettelighter
    Never use acetone!
    Succes , Gijs

    ps meths means he's on methadon
    Gijs Rietveld, May 14, 2006
  5. RichK

    RichK Guest

    Thanks Gijs,

    Tried ipa - it did not touch the glue, also lacquer thinner, which has MEK
    and Toluene. That did not dissolve it either.

    Will look for nafta.

    RichK, May 14, 2006
  6. RichK

    Colyn Guest

    I use a small bamboo stick shaped to the size of the groove and
    carefully scrape the old seal material out.
    You don't have to worry about getting it absolutely clean.
    Colyn, May 14, 2006
  7. RichK

    dadiOH Guest

    You won't find it...try "naptha". Also be aware that if you are replacing
    the light trap material with black foam it too will disintigrate within
    about 10 years. I used to replace mine with black velvet...PITA to cut the
    strips but it doesn't turn to mush.



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    dadiOH, May 15, 2006
  8. RichK

    RichK Guest

    Got some Zippo lighter fluid - only a $1 for 4oz. Also found a mix of
    several chemicals called OOPS. Has Xylene, Naptha, VM&P, Ethyl Alcohol &
    Monochlorotoluene. Good for whatever ails you :)

    Between the two, I got it cleaned up.

    Replacing the seal is just as bad, as removing the old one :-(. I'm using
    the stuff with sticky backing, which of course sticks to the walls of the
    groove, when you trying to force it in.

    Did not think of using other materials, but you're correct, velvet would be
    more durable. After all, cameras were invented, before foam :).


    RichK, May 15, 2006
  9. RichK

    Lloyd Wells Guest

    I scraped as much of the goo out as possible using Stim-U-Dents (you can
    find them with toothbrushes). They fit the groove perfectly. Go get a can
    of Ethyl Alcohol from a paint store to clean the remaining residue with
    Q-tips. There's some guy on ebay who sells light seal kits that work well
    and they only cost about $10 for more than enough to do five cameras.
    Lloyd Wells, May 15, 2006
  10. Oops, wrong side of the pond!
    Methanol or wood alcohol.
    badger.badger, May 15, 2006
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