Product information

Successful pre-treatment

With the test pen, like a normal felt-tip pen, a line is drawn on the material to be examinedapplied. If the line remains as a closed area within the next 2 seconds, the material is pretreated with at least 38 mN / m and is printable.

Pretreatment with errors

The test should only be carried out on surfaces that have been cleaned, ie prepared for further processing
be performed. Dirty pens and surfaces, for example from fingerprints or oil, can also falsify the result.


Inadequate pre-treatment

With the test pen, like a normal felt-tip pen, a line is drawn on the material to be examinedapplied. If the line contracts within the 2 seconds or if it forms a spotty structure, the material has not been pretreated or has only been insufficiently pretreated.


Safety first
Express Test Pens 38 dyne ensure reliable test results with regard to the surface tension of pretreated materials.In combination, test inks and test pens can be used for quality assurance during production, which underlines the product conformity according to DIN EN ISO 9001: 2008!

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