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Amazon.com: Paul Rubens Art Supplies Watercolor Paper Hand-Made Paper, Hot Press 100% Cotton Rag with Glitter Sparkling Effect, Acid-Free Paper 140lb/300gsm, 10.63“ x 7.67” for Wet & Dry Mixed Media, 20 Sheets
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Paper keeps warping! Any tips on how to stop it from buckling and pooling water? Thank you. : r/watercolor101
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