Hi Guys,
First post here, yes I'm a newbie from Leuven , Belgium (home of some of the best beers, except Blue Moon offcourse
).
I have some old posters laying around that could use a (cheaper diy) linen backing.
Most of the stuff I have is theme-based: Star Wars , Disney (Italian 2&4 sheets) , aviation + Sabena (former Belgian airliner) , Belgian tourism posters (Ostend, Leuven , Brussels, ...) , .... and some extra odd ones.
I do not really collect to collect and try to display most of them.
And now I want to make sure that those that are on "hold"
, are kept safe.
In the passed I backed a few posters on japan paper, it worked out great with the Belgian small movie posters but it was a mess with the big Italian stuff.
The fold lines in the Italian 4 sheet are too strong and it looked great at the beginning but after a few months the fold lines came back , so those big sheets definitely needs linen backing.
So I really want to follow into Charlie's footsteps.
Last days/weeks I have been doing some research and I think I have seen most of the youtube movies (yes also those featuring Chris C.) and read a lot of articles.
But Charlie , you have set the best example until today.
I am not planning to do full resto work (like colour touch up / airbrush) on the posters, but I would like to get them washed (bleached?) and backed for preservation.
But still a few things are not clear to me, so any practical advise on this would be more then appreciated.
1. set up of the frame with canvas ?
do you just stretch it by hand (or do you use a specific tool /pliers?) and staple it
then wet it , to get it more tight ?
2. could you give me a link to a shop selling Masa paper?
I haven't been able to find a shop in Belgium (seems that the term Masa is not really used here)
also dimensions and thickness/weight would be handy. So i could look for a similar paper in Belgium
The Cotton canvas used is it still the same as the one that is visible in one of your photos (or have you updated to a better canvas?)
3. what kind of glue do you use, how do you make it , how do you apply it ?
For the japan backing I did use corn flour glue , for what I read about it , it's a bit whiter (less visible) when it dries.
But other then that I do not think it has a benefit to regular wheat glue.
What is the cooking process of the glue: the mixture ? and do you sift it afterwards, let it cool down? ....
if you glue the masa to the canvas: is the canvas still wet , also glued ? glue on one side of the masa ? and if so on which side?
4. How do you wash / bleach the posters ?
if I have read correctly , you use a few baths (de-acifying /bleach / rinse) , what is in those baths ?
bleaching solution and mixture . How long do they bath?
I guess the bleaching bath is NOT without risk, but what about the de-acifying bath, is this risk free ?
(cause I have a few poster that are in mint condition, so they will only need to be stabilized (de-acifyed) and backed
I noticed that you asked a similar question to Dario , have you got a reply on that one ?
f you still want to chip in (and you can always PM me): CaOH2 or CaCO3? and CaClO2 or Chlormine-T? I am leaning towards CaOH2 and CaClO2... and Acetic Acid baths...
I found this info ,not being a chemist , this is a bit out of my league.
so if there is a 'ready to use' solution, that would come in handy.
http://cool.conservation-us.org/coolaic/sg/bpg/pcc/19_bleaching.pdfIf you wet the posters will a soap based solution help the cleaning process ?
(i saw it in one of the PM movies , where they clean a 6 sheet between 2 layers of Mylar)
If so what kind of soap/solution can be used ?
5. Get the poster backed:
So i guess, the canvas and masa is still wet .
Is there (extra)glue on the masa paper (visible front side) or do you only glue the back of the poster?
(with the japan backing I did ,I only glued the back of the (wet) poster)
I think that's all the questions I have for now
