Originally Posted by endoftheroad
How can it be thinned West if 2000 is blush free?
2000 is very rough, shouldn't that be tooth enough?
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Solvent content has little bearing on blush, type of amine hardener does, and humidity, temp & length of cure. For instance, West fast hardener has way less tendency to blush.
Can't comment on the roughness/ suitability of interprotect, for overcoating with other than tie coat/ YRA600, or antifouling, which is what is recommended. Most often we knock it back with 240 anyway.
Heavy fairing needs better tooth.