by John D. Clark
When I painted my first airplane, I built three mock-up elevators according to the plans, to evaluate several different finishing methods. The following procedure was the method I prefered based on the results. From my notes, the finishing procedure was:
The masking I used was plastic garden bags, taped to 1/4" of the edge of the color. The remaining 1/4" was masked with electrical tape. To get a really sharp line, remove the electrical tape about 10-20 minutes after the paint is applied. Be careful--too much enthusiasm removing the electrical tape can peel off paint underneath. I didn't leave the masking tape on long--it seemed to me that the longer it stayed on, the tighter it stuck. I would generally apply the mask in the morning, and remove it before the end of the day.