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Measurement method

The test consists in drawing dynamically of one or more lines on the test area using the Tester with a total area of at least 6 cm2. If the marker line creates an uninterrupted film that lasts for at least 2 seconds, it indicates that the wettability of the surface corresponds to the value of the Tester (e.g. 42 mN/m) and the required level of purity has been reached.

Measuring method

Roklin TESTERS

The Roklin TESTERS set contains four types of mixtures closed in easy to apply packaging (markers), allowing to test the wettability of the surface in two ranges — lower, for the value: 30, 32, 34 and 38 mN/m and higher, for values: 42, 46, 50 and 58 mN/m. Upon customer's request, it is possible to prepare a set of testers with selected values in the range of 30-73 mN/m.

If the wetting rate is at least 42 mN/m for steel and 34 mN/m for aluminum surfaces, the surface is considered to be sufficiently clean and ready for subsequent processes. A value of 58 mN/m indicates a very high degree of cleanliness.

To meet the requirements of our customers, we have created a series of Roklin NON-TOXIC testers, which replace the standard line of testers in accordance with the norm ISO 8296.