Originally Posted by
kstang
Most of the primers sand-able time is counted in hours not days, and the instructions are fairly conservative. I am not saying its bad to wait and take your time but days is a little excessive.
Well, that's what I do and the primer feels "harder" and "less thick" when I wait. I think that it sands better. I don't claim to be a paint expert but, if I remember right, the instructions say to recoat within 2 hours of after 48 hours. I assume that "don't paint" window is there for a reason. Extending that 48 hour minimum cure time window doesn't hurt anything.
To me it's kind of like building wheels. The only reason for doing it is the satisfaction of doing the best job that I think that I'm capible. I've got other bikes to ride so I'm not in a rush.