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Silkscreen question re: exposure times for 250w mercury vapor bulbs

Discussion in 'Printing & Print Design Forum:' started by JosephCritchley, Apr 24, 2014.

  1. JosephCritchley

    JosephCritchley New Member

    Afternoon good people,

    This is one for you silkscreen pros!

    Sorry to jump straight in with a technical question but I'm desperate.

    I'm using a 250w 'mercury vapour' bulb. The data sheet says it's 'coated'. How long should I expose my silkscreens for?

    I know they take 2-3 minutes to start emitting UV...

    Joseph
     

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