I work as a professional art conservator and am very familiar with dry cleaning. Just know that there is some growing debate with using a "bag" as the chief complaint is that too much residue is left behind . there used to be a very good material for this which is called Skum_x from Germany and has been used since the turn of the century. Can't find it anymore except from one supplier based out of Milan Italy. I also spoke today to my Chief conservator about comics and conservation. seems that what is acceptable protocol for conservation is seen as unacceptable to comic dealers,collectors and grading companies. remember that these accepted methods of conservation have come to be through science,trial and error, and ethics,history, aand years of research. One has to understand the difference between Conservation and Restoration. As Higher Grade GA books disappear from the market books in poorer condition will have to be reevaluated . We need to start looking at older GA books as historical documents and treat them as such. what I do as a conservator on a daily basis for the Getty ,Smithsonian, and private estates is unexceptable to the majority of comic folk. What is unethical is allowing these treasures to fall apart to the point to were damage is too far gone. CGC has already embraced conservation ,and why? Because they are now Forced to embrace the inevetable. That nature and time will reclaim what was ignored
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