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Tried a 50/50 PVA mix for a repair and it went all wrong

I was fixing a 1902 poetry book from a local library here in Portland and used a half water, half PVA mix on the spine. The paper soaked it up way more than I thought and now the pages are wavy and stiff, almost like cardboard. Has anyone else had this happen with old paper, and what glue mix do you use instead?
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3 Comments
sam530
sam5302mo ago
Oh wow, a 1902 book... that paper is basically a sponge! A 50/50 mix is way too wet for something that old. I use a much thicker mix, like 70% PVA to 30% water, and even then I brush it on super thin.
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cameron724
cameron7242mo ago
Man, that reminds me of when I tried to fix the binding on my grandma's old cookbook. I used a mix that was way too thin and ended up with wavy, wrinkled pages that looked worse than before. I learned the hard way that old paper just drinks up moisture. What did you end up using for the spine on that one?
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johnson.lee
Actually, that thicker mix can be risky too. It dries so fast it might not soak in right on super old paper, leaving a plastic-y skin that cracks. Seen it happen on a 1910 ledger. Cameron724's wavy pages from too much water is the other extreme. For something from 1902, a tiny bit of methyl cellulose in the mix slows the drying way down, lets the paper take it in without warping.
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