Okay but seriously, what WAS the trick? I've been fighting with my trim for WEEKS and it always looks bumpy. A smooth finish feels impossible without the right method. Please share because this is a total GAME changer for DIY. My last attempt was so bad I almost gave up on painting forever. Getting it right must feel AMAZING, I need to know how!
The trick is thinning the paint more than you think. I use about 10% water for latex paint and apply it with a high quality angled brush. Sanding with fine grit paper between coats is what really makes the surface perfect.
Ever try thinning your paint with a bit of water? I switched to a small, angled brush and used really thin coats, sanding lightly between each one. That combo finally got me that glassy smooth look without any drips or bumps.