Has anyone used, or know about, methyl cellulose as a sizing solution for gum bichromate? Are there any long term detrimental effects on the paper with methyl cellulose? I want to make some gums over the weekend and have no gelatine. I coated a few sheets of Bergger COT with a dilute solution of methyl cellulose and some formalin added just prior to coating. The paper is now dry and there seems to be no yellowing. Have searched the archives but can't find any information about sizing with methyl cellulose.