Application第 63 / 100 题
What is the correct spray technique for keeping film thickness uniform?
a.Arc the gun in a fanning motion at varying distances
b.Hold the gun perpendicular to the surface at a consistent distance and move at a steady speed with 50% overlap on each pass
c.Hold the gun as close as possible and move very slowly
d.Trigger the gun only at the middle of each pass
解析
A uniform film comes from holding the gun perpendicular to the surface, keeping a constant distance, moving at a steady rate, and overlapping each pass by about half. Arcing the gun or changing distance produces uneven thickness and stripes. Triggering at the start and end of each stroke reduces buildup at the edges.
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