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Common Poster Subjects => Restoration => Topic started by: Tang Lung in Rome on August 12, 2017, 11:57:18 PM

Title: Mold bleed thru ?
Post by: Tang Lung in Rome on August 12, 2017, 11:57:18 PM
My arabic Game of Death was in contact with LALD Italy 1sh and bled thru (looks yellowed on back) prolly due to being on same glossy paper stock......didnt see any other posters affected by this ,

Can this be fixed  on the back ? (The Game had some mold stains on back so I guess it migrated to the other poster)

It was sgd by Moore so you can imagine how I felt when I noticed this :(
Title: Re: Mold bleed thru ?
Post by: erik1925 on August 13, 2017, 12:40:03 PM
My arabic Game of Death was in contact with LALD Italy 1sh and bled thru (looks yellowed on back) prolly due to being on same glossy paper stock......didnt see any other posters affected by this ,

Can this be fixed  on the back ? (The Game had some mold stains on back so I guess it migrated to the other poster)

It was sgd by Moore so you can imagine how I felt when I noticed this :(

What bled thru exactly?

Or are you meaning the mold got transferred from the back of GoD to LALD?

Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on August 13, 2017, 04:41:01 PM
Yes , I assume thats how it had turned yellowed on the left side , its not been in the sun or anything (thick curtains always shut)
Title: Re: Mold bleed thru ?
Post by: erik1925 on August 13, 2017, 10:47:04 PM
Or the paper itself is just beginning to age and tan a bit (turn more yellow).
Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on August 13, 2017, 11:25:20 PM
I doubt it is tanning related , either way I will not leave that arabic anywhere near the others any more.
Title: Re: Mold bleed thru ?
Post by: erik1925 on August 13, 2017, 11:40:42 PM
I doubt it is tanning related , either way I will not leave that arabic anywhere near the others any more.

Post some pics... its hard to picture exactly what you're talking about.  :)

Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on August 16, 2017, 09:28:04 PM
Im in US so not possible , it basically has a large pee stained colored area on one of the folds making the poster somewhat transparent in that upper left portion of the poster and since the arabic has the same yellowed stained area plus mold stains then it makes sense thats where it came from.

 If its possible to paint it on the back to restore the white color then thats what I want to do.
Title: Re: Mold bleed thru ?
Post by: erik1925 on August 17, 2017, 04:42:41 PM
Im in US so not possible , it basically has a large pee stained colored area on one of the folds making the poster somewhat transparent in that upper left portion of the poster and since the arabic has the same yellowed stained area plus mold stains then it makes sense thats where it came from.

If its possible to paint it on the back to restore the white color then that's what I want to do.

Ive never heard of the back of a poster being airbrushed before... but if you want it done, Im sure your restorer would do it for you.
Title: Re: Mold bleed thru ?
Post by: jedgerley on August 17, 2017, 07:01:37 PM
I think it needs a bath rather than airbrushing.
Title: Re: Mold bleed thru ?
Post by: erik1925 on August 17, 2017, 07:40:00 PM
I think it needs a bath rather than airbrushing.

A nice, warm, wash and then maybe a gentle bleach bath... but hold the bubbles.  ;D
Title: Re: Mold bleed thru ?
Post by: 50s on August 17, 2017, 09:30:28 PM
then iron it flat

Title: Re: Mold bleed thru ?
Post by: jayn_j on August 17, 2017, 10:12:52 PM
not quite.  I would do a bath with an acid neutralizing compound.  A thorough wash that gets into the fibers, but minimize the handling and flow.  For drying, use blotting paper from an art supply store and even weight.  Do not use heat.  Nothing good is going to come from that.

Change out the paper after a day, but keep the weight on until the poster is dry.  I'd say 2 days.  Hopefully this will remove any mold or staining.  This will not help if this is a foxing issue.
Title: Re: Mold bleed thru ?
Post by: 50s on August 17, 2017, 10:35:38 PM
If any signs of mold left while poster is still damp, with car battery, clamp jumper leads either side of poster (with mold in between). Mold should vaporise

Or use a laser to kill the mold something like this:

https://www.youtube.com/watch?v=14QcDVdEiaQ (https://www.youtube.com/watch?v=14QcDVdEiaQ)


Or more seriously and interestingly - Laser offers hope - Read "Conclusion" section at end of page:
https://www.researchgate.net/publication/259614511_Laser_removal_of_mold_and_foxing_stains_from_paper_artifacts_Preliminary_investigation (https://www.researchgate.net/publication/259614511_Laser_removal_of_mold_and_foxing_stains_from_paper_artifacts_Preliminary_investigation)

 
Title: Re: Mold bleed thru ?
Post by: guest4531 on August 24, 2017, 06:10:22 AM
not quite.  I would do a bath with an acid neutralizing compound.  A thorough wash that gets into the fibers, but minimize the handling and flow.  For drying, use blotting paper from an art supply store and even weight.  Do not use heat.  Nothing good is going to come from that.

Change out the paper after a day, but keep the weight on until the poster is dry.  I'd say 2 days.  Hopefully this will remove any mold or staining.  This will not help if this is a foxing issue.

"acid neutralizing compound" - What's the easiest acid neutralising compound to find in market ?
Title: Re: Mold bleed thru ?
Post by: erik1925 on August 24, 2017, 10:26:55 AM
"acid neutralizing compound" - What's the easiest acid neutralising compound to find in market ?

Calcium Hydroxide (CaOH), mixed with distilled water to create a solution, is often used for deacidification. It is easily available to purchase.

Im sure Dan from Backing to the Future could elaborate more, as well as discussing what he does, and uses for this process.
Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on December 03, 2017, 01:11:29 PM
(http://i65.tinypic.com/1z64huo.jpg)

I was quoted 3-400 euros to fix this , kinda steep...isn't it possible to buy another copy and glue it to the damaged one (on the back) to tone down this yellowing ?

Might've been moisture not mould that did this yellowing (although the arabic 1sh did have some black mould spots on the back) , I do have some slight moisture in my apartment as I don't keep the heat on or only at bare minimum. 
Title: Re: Mold bleed thru ?
Post by: erik1925 on December 03, 2017, 01:14:52 PM
Who were you in touch with, that gave you that kind of price to fix it?
Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on December 03, 2017, 01:17:24 PM
Was french backer.
Title: Re: Mold bleed thru ?
Post by: erik1925 on December 03, 2017, 01:19:47 PM
Sounds high to me, too. You should get a quote from Mario Cueva here in so CA, Dan Miles from Backing to the Future, Poster Mountain, or 4th Cone, just to get some other opinions.

And gluing another copy on the back likely wouldnt stop any yellowing from continuing. If nothing else, that foxing or mold might be passed on to the other poster, too.
Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on December 03, 2017, 01:23:43 PM
I think it's foxing , I saw no mould on it.
Title: Re: Mold bleed thru ?
Post by: erik1925 on January 27, 2019, 03:30:41 PM
(http://i65.tinypic.com/1z64huo.jpg)

I was quoted 3-400 euros to fix this , kinda steep...isn't it possible to buy another copy and glue it to the damaged one (on the back) to tone down this yellowing ?

Might've been moisture not mould that did this yellowing (although the arabic 1sh did have some black mould spots on the back) , I do have some slight moisture in my apartment as I don't keep the heat on or only at bare minimum.

Hey Tang,

Have you done anything with this poster to have the foxing removed and the paper washed a bit, to lighten it up?

Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on January 28, 2019, 01:30:32 PM
Not yet
Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on March 22, 2019, 01:07:21 PM
The linen backer would not risk it as he fears the autographs will be damaged so its just getting backed

(damn **** moist prolly did this , lesson learned the hard way   moron1  : :'(

007 LALD and Chinese Hercules (both had bleed thru due to moist , both printed 70s in Italy so prolly nothing to do with mold as I first thought)
Title: Re: Mold bleed thru ?
Post by: erik1925 on March 22, 2019, 01:11:41 PM
The linen backer would not risk it as he fears the autographs will be damaged so its just getting backed

(damn **** moist prolly did this , lesson learned the hard way   moron1  : :'(

What backer are you using that told you this?
Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on March 22, 2019, 01:13:13 PM
Passiongraphique

The last thing I want now is to make matters worse , Im not risking it
Title: Re: Mold bleed thru ?
Post by: erik1925 on March 22, 2019, 01:18:31 PM
Passiongraphique

The last thing I want now is to make matters worse , Im not risking it

Is that autograph done with blue Sharpie? Looks like it.
Title: Re: Mold bleed thru ?
Post by: erik1925 on March 22, 2019, 01:20:39 PM
If you just have it backed, without any treatment, that mold/foxing issue will probably only get worse.
Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on March 22, 2019, 01:25:01 PM
I dont know what foxing is but its not mold related , most likely this is due to me having had way too low temp inside but I have since turned up the heat as Im not going thru this again

(doesnt look like foxing either)
Title: Re: Mold bleed thru ?
Post by: erik1925 on March 22, 2019, 01:42:23 PM
If that autograph is Sharpie, then the paper could be washed and treated, as that kind of marker is indelible. Plus a knowledgeable backer also has methods to protect autographs, whether they be sharpie, pen or even pencil.
Title: Re: Mold bleed thru ?
Post by: erik1925 on March 22, 2019, 01:49:57 PM
If nothing else, it might be worth getting a second opinion.  thumbsup.gif
Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on March 22, 2019, 01:54:12 PM
I could ask Dario but considering its sgd by Moore I dont want to take huge risks
Title: Re: Mold bleed thru ?
Post by: erik1925 on March 22, 2019, 01:56:51 PM
I could ask Dario but considering its sgd by Moore I dont want to take huge risks

Id ask Poster Mountain or Mario Cueva, too. Like I said, just to get their opinion on what it is and how to maybe prevent it from getting worse (AND possibly affecting Moore's autograph, too, should it get worse).
Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on March 23, 2019, 10:46:21 AM
He said the paper is fragile but I thought ught soggetone was decent paper......at least from 70s , its not like its newspaper stock like 2 & 4sh's

But I shall see what those pros think.
Title: Re: Mold bleed thru ?
Post by: Tang Lung in Rome on April 07, 2019, 04:49:20 PM
PM wouldnt touch it (now theres a surprise - not !)

Im still gonna linen back it , this has been a hard lesson to learn