1) How much emulsion do I need for coating 250 screens?
2) How much screen cleaning chemicals (screen wash, degreaser, emulsion remover) do I need for cleaning 250 screens?

Thank you.

I do not have an answer for you on that. I have never tried to calculate such a thing. It will all depend on how you use the chemicals and how you coat your screens. But I know a gallon of emulsion will go a very long way.