MZ001 HmayartBlack Sumi Liquid Ink for Japanese Brush Calligraphy & Chinese Traditional Artworks 250ml (Black)
Brand: Hmayart
Color: Black
About waterproof:

The liquid ink is Chinese traditional ink, which specially for Chinese traditional artworks such as painting and calligraphy.
It's waterproof surely, because traditional artworks used to be done WET mounting for stocking, and needs to color many times.
The premise is: The ink must be COMPLETELY dry first.
In Chinese paintings process, we usually use a hair drier.
After drying the artwork with a hair drier, it's ok to wet or pomo or color again and again on the dry ink.
Try to use a hair drier please?
It's really a good tool in Chinese artwork process :)

Happy creating!
The liquid ink is Chinese traditional ink, which specially for Chinese traditional artworks such as painting and calligraphy;
Made from PINE SOOT; with special ink fragrance;
Weight: 250 ML (8.8 OZ);
It's ready to use;
Perfect absorbed on xuan paper;