Have you ever been sketching and wanted to cover a larger area quickly? Or wanted to just variegate the tone very subtly similar to using a watercolour? Well, derivan liquid pencil is capable of all these things and more. It's a truly revolutionary way to create sketches. Derivan liquid pencil is available in permanent and rewettable formulas in six subtle graphite shades yellow, red, blue. Sepia, grey 3 and grey 9 in 12ml tubes. Use (unique formulation) derivan liquid pencil is an innovative new product that allows you to create authentic graphite pencil effects and pencil sketches using a liquid. It has been formulated to so you can thin with water or mm9 acrylic painting medium (to maintain permanency) you can create a wide variety of graphite shades. Derivan liquid pencil has a creamy consistency, and different rheology (flow of liquid matter), artists now have a broader scope for creating sketches. Lighter or darker results can be obtained by mixing in a combination of water and medium and the effective layering (glazing) of different shades. Water will allow you to spread it more easily and the addition of mm9 medium will maintain the intrinsic structure of the product as with all creative undertaking, experimentation is recommended as there are no precise 'fool proof' method to achieve exact variety of tones. Due to a precisely balanced formulation another great benefit of the permanent liquid pencil is that it will “burnish up’ in a similar manner to traditional graphite but it will not smudge. The rewettable formula will also allow you to remove areas using water – in a similar manner to watercolour techniques. A standard eraser can also be used and while it will remove some of the colour it will not erase back to clean paper. Another advantage to using derivan liquid pencil is that large areas can be built up and covered quickly and easily. This product can is also completely compatible with traditional solid form of graphite. Each of the shade variations gives each colour in the derivan liquid pencil range unique properties. There are distinct undertones such as blue, yellow, red, and sepia, in addition to neutral grey in two different finishes to allow a great range of options for artists – grey 3 and grey 9. The number is indicative of the final rendered layer’s undertone (cooler or warmer grey ) rather than lightness or darkness. Clean up brushes, utensils, and hands can then be washed with soap and water. Removing stains wash stains out immediately with cold water and household soap, taking care not to spread the stain. Dry stains will need to be soaked overnight in lukewarm soapy water. Do not use hot water, chemical solvents, or thinners. Other methods of cleaning will generally only act to drive the stain in deeper. Suitable clothing should be worn as some staining may occur. Health & safety derivan liquid pencil is a non toxic water based product containing water and graphite powder dispersed in an acrylic polymer emulsion. For further information, please view or download the safety data sheet document here. Derivan liquid pencil set the liquid pencil set of twelve 12ml tubes, contains all six shades of liquid pencil in permanent and rewettable formulas.