Chromaline DC 521 Dual Cure Emulsion
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Chromaline DC 521 universal, blue dual cure photo-emulsion is intended for most textile and graphic shops who need a versatile, inexpensive stencil. Its high 37% solids, low viscosity, and excellent leveling allows for fast coating without pinholes. DC 521 copies with incredible detail and speed. It is low cost, high performer.
Emulsion Exposure Differences
Proper screen exposure must take many factors into account – the emulsion type, coating thickness, exposure unit, etc. As a general guideline for the different emulsion types (diazo, dual cure, and photopolymer) use these times as a reference.
Photopolymer – These are typically the fastest exposing emulsions, with many exposing correctly from 30-50 seconds. The shortest times can be seen when using a newer LED-type exposure unit.
Dual Cure – If you have established a good exposure time with photopolymer emulsions, you can typically add 90 seconds (1.5 minutes) to that time for most dual cure emulsions.
Diazo - If you have established a good exposure time with photopolymer emulsions, you can typically add 210 seconds (3.5 minutes) to that time for most diazo emulsions.These times will depend heavily on your exposure unit and should only be considered as a starting point.