Originally Posted by Loren Schweizer
Did some other coating--incompatible with zinc-- come on-market in the past couple of years that puts egg on my face?
Not that I know of. It is just good practice to select a coating system and prepare in accordance with that manufacturer's instructions before using any third party product that will underly that system.
No offense intended, it is just that there are many "zinc primers" on the market. Some of which may or may not use a carrier or solvent compatible with all coating systems.
Given the cost of hull preparation and application of a marine coating system it is simply a prudent approach to carefully plan such a project.