Microscale nr. 7 Micro Mask
Micro Mask is masking tape in a bottle. Apply it with a brush, let it dry, and cut into any shape you want with a sharp knife. Remove the part where you want to paint, which leaves an outer periphery surrounding areas protected and then paint as usual. Do not use water-based paint, because Micro Mask is soluble in water. You can paint the finest detail that you can cut, unlike masking tape where paint can get. Underneath with a knife Even the toughest designs are sharp and clean appear with Micro Mask.