As I mentioned in my earlier post, I like Acraglas for final skim coats, thinking that takes care of shrinkage of the main bedding mass.
Paul
This is the reason to use something like Devcon (I use the aluminum version): it shrinkage is absolutely minimal -- making the skim coat unnecessary.
For a pro who counts time, not having to do a second coat justifies the extra expense (which for the Devcon aluminum is pretty reasonable to begin with).
