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A Clear Coating for Paper? Answered

Hi, I was just wondering if anyone knew of a clear coating for paper based crafts, to make it waterproof. Thanks!


I was going to make pressboard out of coffee cups, and wanted to seal it for use with cups on it... please dont steal my idea =X

I don't have the cups.... If you want a true waterproof surface I'd suggest varnish.


You've got polyurethane varnish, and various glues. But you could also soak it in white wax, or heavy paraffin.
What sort of purpose do you want from the treatment?