Technical Support Blog

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Plastisol Ink

What to do with thick plastisol ink?

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When a plastisol screen printing ink has been sitting for a long period of time, it often can become very thick.  At this point, many printers will resort to using reducers or additives in the ink to make it more printable.  While this is ok, simply stirring the ink may be all the ink needs to become thinner and more printable again.  Try this before using any sort of additive as anything you add to an ink will have consequences.  If you have tried to stir the ink back to its original consistency and it still is not the viscosity you desire, One Stroke Inks has many options for you.  Curable Reducer is the safest option as you can add as much as you would like without changing the curing properties of the ink.  However, the more you add, the less opacity your ink will have.  Auto Formula Additive is a great option, especially when reducing polyester ink.  This will be less likely to diminish the bleed resistance of the ink.  A new additive is the W.O.W. Additive.  This stands for wet-on-wet additive.  Only used in the 480 Series inks, the W.O.W. Additive is designed to make this ink series better for wet-on-wet printing by preventing the ink from sticking to the back of the next screen.  Visco Minus is a chemical reducer for all inks.  This additive will require very little liquid to reduce a lot of ink.  You benefit by keeping the opacity of the ink higher than what it would be with standard liquid reducers.

Author: Robb Mears

Director of Product Development with One Stroke Inks.

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