Surface Preparation and Application
I have been a big proponent of Durabond for skim coating, plaster repair, and a variety of applications. Specifically, my MO is usually:
1) Oil Prime, or otherwise stabilize
2) First Coat with Durabond 90
3) Second Coat with EZ Sand 45
4) Sand with 9" drywall sander
5) Final pass / touch up...