Diagraph stencil marking inks are bottled & packed originally from the factory in USA. We import directly from the factory & immediate delivery can be arranged from ready stock in Singapore. It gives a strong contrast, fast dry, permanent & weather resistent. It's suitable for marking all surfaces; porous ( absorbent like wood & corrugated board) & non-porous (non absorbent like metal & plastic). It comes in gallon and quart (1 litre) size container with label on it.