Hello – Thank you for all of your generosity. I have learned a great deal from your website. I was wondering if you could tell me what you size with. I have always found the gelatin method to be the best but I really hate dealing with formaldehyde. Have you found anything better? Thank you for your time. Jean Sanders

Thank you Jean. I’ve been using Glyoxal as a hardener for over 10 years instead of Formaldehyde (the US National Toxicology Program recently described formaldehyde as “known to be a human carcinogen”.)  Glyoxal is cheap, less toxic and works extremely well (my sizing can hold up to a dozen or more layers) and can be found at Photographers’ Formulary.   Best, Tony

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