This drawing gum is used for protecting white places on canvas or paper when painting with aquarelles or inks. It’s applied using a brush, it needs to be left to dry out and then it’s possible to paint over it without disrupting the original motif. After finishing, it can be easily removed from the material, either with your finger, a classic eraser or with tweezers. The higher quality the aquarelle paper is used, the easier it is to remove the drawing gum. Wash the brush with warm water immediately after use! The drawing gum contains a weak ammonia solution that can cause a slight ammonia smell. This is not a product defect and the smell will soon disappear. Store closed and out of reach of children.