I'm painting a street corner using waterproof color inks made by Kakimori (a brand and a store located in Tokyo). I'm explaining the advantages and disadvantages of using pigment-based waterproof inks for painting.
See more about Kakimori inks here:
https://kakimori.com/en/collections/ink
Feel free to check out my other stuff:
Gumroad: https://gumroad.com/mateusz_urbanowicz
Patreon: https://www.patreon.com/mateuszurbanowicz
Website: http://mateuszurbanowicz.com
Blog: https://artvsentropy.wordpress.com/
Twitter: https://twitter.com/gommatt
Instagram: https://www.instagram.com/mateusz_urbanowicz