Watercolour paper can deteriorate with time

Thick, heavy 140 lb (300 gsm) watercolor paper is ideal for all wet on dry and wet on wet watercolor techniques, and combination with other media like

2-Pack 30 Sheets 9 X 12 Cold Press Watercolor Paper 140lb/300gsm

Watercolour paper: how to choose the best paper for you

Understand This if You Want to Paint on Paper - Studio Wildlife

Do You Hoard Your Watercolor Paper? - Doodlewash®

How to Choose the Best Watercolor Paper And Enhancing Your Artistic Jo — MEEDEN ART

Help! My watercolour paper dries too fast when I work wet on wet. — Louise De Masi Watercolour Artist

Karen Sioson Watercolors: Troubleshooting Paper Problems: When The Sizing Goes Bad.

How To Store & Preserve Watercolor Paintings? - Beebly's Watercolor Painting

Essential Plein Air Watercolor Supplies