which is waterproof and archival-safe

with a 60° gloss rating around 90 %

such as PC-1MR or PC-3M

journaling

but of course you can use other acrylic markers as well

uni posca markers paint on rocks medium set 1 hiddenproduct which is waterproof and archival-safeThe Posca Paint On Rocks Medium Set is a perfect collection for rock artists, crafters, and DIY enthusiasts who want to create vibrant, long lasting designs on stones. This set includes 26 high quality Posca markers in a variety of sizes and colors, ideal for both intricate detailing and bolder artwork. The set also includes a clear spray varnish that can be used as a primer before you start painting, as well as to protect your artwork once it's