Screen-printing with a water-based Derivan Screen Printing Stencil System is a process that's non-toxic and fun. It's the perfect process for kids, adults, and any artist. Use the Screen Block Out to fill the screen after you have applied your design to the silkscreen with the Derivan Drawing Fluid.
The Block out should be left a minimum of 72 hours to dry. It is imperative that a test then be performed on an area of the block out, rubbing it with a damp cloth or finger, to make sure it has cured. If some colour comes up, leave it for another day before testing again. In some climates it can take many days before the block out is cured so that it will not move when washing out the drawing fluid.
