Electro-Graf

Step 6 Apply topcoat

Once you have taped the contact pads, you can apply the topcoat. I used Krylon green fluorescent and black ultra-flat spray-paint. You can get specialty caps at a number of online stores. Here is one. Fat caps help reduce the time it takes to cover large areas with a single color. Remember to allow sufficient time for the paint to dry between coats.

Note: acetate produces a tight stencil with less under-spray than cardboard or thick paper. But acetate is flimsy and requires much more taping to stay flush with the wall.