Chromaline does not publish exposure times for individual emulsions on our data sheets because is there are too many variables to have it make a real impact. Yes we could tell you what it does in our lab and the exact amount of light units that it takes on our equipment at a specific EOM on a specific screen mesh. To the general screen printer that number would make no difference at all and they would still be left guessing. The best advice that I could ever give when trying a new emulsion is, if you already have an established exposure time for the specific family of emulsions (Photopolymer, Dual Cure, Diazo) then do a step wedge test around the time of the comparable emulsion. You should already be in the ballpark and all you need to do is fine tune it. By doing this one test you will be closer to the actual proper exposure than you ever would be by going off of a time on a data sheet that was done in a lab under perfect conditions. My last bit of advice is, There is no substitute for an initial proper exposure!