Fishman,

You know who else uses these types of pens? New car delaers. My new automobubble had a chip in the paint on the door. It was on the rim, window high, that closes into the frame. The dealer said no problem, we'll order you a paint pen and you can paint it yourself. Sure enough it came with the color on one side of the pen and the whatever you call it on the other side. The whatever you call it is what you put on after you paint it. Sealer???

Who wudda thought you could do that w/a home pen? God bless this lady for being an innovator. And thank you for the story.

Tom