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For use in testing the Surface Energy (Dyne Level) of most plastics, composites and other substrates. Also tests glass for cleanliness.
Most Pens - $18.95 each (+ freight)
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8-Pen Set
8-Pen Set - $112.50 ( 30, 32, 34, 36, 38, 40, 42 & 44) - {46 also available|
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To make possible the printing and adherence of plymer plastics, it is inherent that the surface be treated so that the surface tension rises to a defined point. Example, untreated PE and PP have a surface tension of about 30dynes/cm. Well-treated PE and PP should reach a value of about 38-42 dynes/cm for printing and adhesion.
Most polymer plastics with a surface tension of less than 37 dyne/cm will have binding difficulties - often recognized in that the tape pull-off test has negative results.
