What is inkpad made of?

Inpad is an oil-soluble seal pigment, which is made of pigment, oil and preservative.

Ink prepared by modern technology. The main components of red inkpad are lead chromate, mercury sulfide, scarlet powder 88, barite powder, white flowers, castor oil or chlorinated paraffin oil, phenol, moxa and kapok. The main components of blue inkpad are oil-soluble aniline blue, oleic acid and castor oil.