Pierre, I,m printing union silver shimmer right now on black tees and no underbase, but I,m using a 25 mesh screen on the large areas and 80 mesh on the smaller area, if you want to get good coverage on an auto use those mesh counts and a double bevel squeege. You might want to stroke it twice, but no p/F/p plus I,m running it last. Brads right underbase on the color sucks
Darryl