High-speed primer

Iretrimmed my house last year, and like all my other home projects, it was a rush job. To speed up the prepainting, I primed with Zinsser BIN. It’s a shellacbased primer that can be tinted to any color and has excellent adhesion. But what made it so helpful was that it dried extremely fast and was easy to sand. I’d lay 10 sticks on horses and coat one stick at a time, and when I was finished with all 10, I could start on the second coat right away. There are two downsides: It’s expensive, $45 a gallon, and there is a learning curve because of the fast drying time.