Water Based Ink for Sketch Pen has good colour strength and offers excellent flow. The Ink has a surface tension of 30-35 mN/m and 1.01- 1.08 specific gravity range. The Ink can be used with polyester reservoirs and polyester tips. Water Based Ink for Sketch Pen is available in varied range of colours like blue, black, brown, dark green, orange, red, yellow, pink, purple, magenta and fluorescent.
