Create your own custom paint designs with our easy-to-use liquid mask. It works great when painting the inside of RC car and truck bodies, slot car bodies, etc. Use a 1/2" wide paint brush or airbrush with large tip to apply a thick even coat. Allow it to dry or use hair type blow dryer to speed up dry time and repeat for a nice "skin", thick enough that it will allow you to cut through with a hobby knife and peel away the sections to paint. It dries clear so you can draw your design on the outside of the body and cut it out in the FASMASK on the inside. Do not cut deep enough to cut the body. You can also use a smaller brush to mask off small, specific areas such as windows, bumpers and graphics. The average RC body requires 2-3 ounces. It can also be used to paint other items like model cars, helmets, etc.