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Cleaning slides

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Cleaning slides Gary Montalbine 21 Mar 02:33
  Cleaning slides Carol Spears 21 Mar 03:22
   Cleaning slides jim feldman 21 Mar 03:49
    Cleaning slides Carol Spears 21 Mar 04:17
Gary Montalbine
2004-03-21 02:33:09 UTC (almost 21 years ago)

Cleaning slides

I have some 40 year old 35mm slides and negatives that have mildew on them. What is the best way to clean them? I hope this is not OT.

Thanks,

Gary

Carol Spears
2004-03-21 03:22:49 UTC (almost 21 years ago)

Cleaning slides

On Sat, Mar 20, 2004 at 08:33:09PM -0500, Gary Montalbine wrote:

I have some 40 year old 35mm slides and negatives that have mildew on them. What is the best way to clean them? I hope this is not OT.

most of what i know about slides i learned 30 years ago -- i suggest water and a soft lint free cloth.

carol

jim feldman
2004-03-21 03:49:34 UTC (almost 21 years ago)

Cleaning slides

I replied at length privately, but water is BAD for emulsions unless you're ready to go through a complete re-soak. Unless the re-soak ends in a bleach bath, it's probably not going to help, and could make matters worse. There are some very good sites that discuss photo material conservation/restoration and the appropriate materials and protocols.
http://www.cr.nps.gov/museum/publications/conserveogram/cons_toc.html http://www.mnhs.org/preserve/conservation/photographs.html

the USA library of congress web site also has some good references. I actually quoted a higher RH to him for storage. It seems 30-40%RH is now considered best. Last I heard it was 60% max

PEC-12 is best to use if you need a cleaner.

jim

On Sat, 2004-03-20 at 19:22, Carol Spears wrote:

On Sat, Mar 20, 2004 at 08:33:09PM -0500, Gary Montalbine wrote:

I have some 40 year old 35mm slides and negatives that have mildew on them. What is the best way to clean them? I hope this is not OT.

most of what i know about slides i learned 30 years ago -- i suggest water and a soft lint free cloth.

carol

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Carol Spears
2004-03-21 04:17:41 UTC (almost 21 years ago)

Cleaning slides

On Sat, Mar 20, 2004 at 07:49:34PM -0700, jim feldman wrote:

I replied at length privately, but water is BAD for emulsions unless you're ready to go through a complete re-soak. Unless the re-soak ends in a bleach bath, it's probably not going to help, and could make matters worse. There are some very good sites that discuss photo material conservation/restoration and the appropriate materials and protocols.
http://www.cr.nps.gov/museum/publications/conserveogram/cons_toc.html http://www.mnhs.org/preserve/conservation/photographs.html

the USA library of congress web site also has some good references. I actually quoted a higher RH to him for storage. It seems 30-40%RH is now considered best. Last I heard it was 60% max

PEC-12 is best to use if you need a cleaner.

well, usually the first time i try something, it really doesnt work out very well -- and google showed me a bunch of people to hire.

thanks for the correction.

carol