Originally Posted by
samnelso
I just read that Bob Stormer says sharpie works well. He's a reliable source, so maybe I'll try that. I was also thinking nail polish.
Nail polish is a thick lacquer based paint. When it dries, it will crack if it flexes even the slightest amount at all.
Most of us use a sharpie marker or paint pen. Either will pass the 3 foot test. I prefer a paint pen prior to installation.