Don't know it this is a tip or not, it just works for me. I'm using automotive Nason paint and the best trim tape I can find. I remove the edging tape as soon as the paint tacks off. I still get two things. I get small amounts of bleeds under the tape at rivets and overlaps of the alum. I sharpen a popsicle stick to a point , wrap that with a small rag and dip the end in Randolph C-2210 paint surface cleaner. In order for this to work the base paint needs to be cured and the trim paint needs to be just dried/tacky.
I just follow the edges carefully and clean out around the rivets. I noticed removing the tape when the paint is tacky leaves hair line lines out on my white here and there. With my eyes I need to get close to see them but they are there. This method quickly wipes them away.
I finally found something about painting that I like and enjoy. Un-taping after painting. It's fun to open things up and see how it turns out. This only applies when things turn out OK.
I just follow the edges carefully and clean out around the rivets. I noticed removing the tape when the paint is tacky leaves hair line lines out on my white here and there. With my eyes I need to get close to see them but they are there. This method quickly wipes them away.
I finally found something about painting that I like and enjoy. Un-taping after painting. It's fun to open things up and see how it turns out. This only applies when things turn out OK.