plasmatreat® test inks should not be mixed together. Meaningful tests on the surface tension are no longer possible then. plasmatreat® test inks must be closed immediately after their use. The varying speed of the evaporation of the contained components results in a change in the composition of the test inks. In the case of frequent use, the test inks are only durable for a maximum of three months. Series B and C plasmatreat® test inks are suitable for PVC. Series A test inks with a formamide base expand on PVC and provide incomparable results. Series A and B plasmatreat® test inks consist of partly toxic chemical blends and are produced in accordance with the draft DIN ­ tandard on surface s tension. Please heed the Safety Data Sheets. Used around the world: Openair® Plasma Technology Cleaned, activated, coated by plasmatreat® and creates a bond Suitable for the following: • lastics, sheet metal, lacquer, lined cardboard and p glass • surfaces that are difficult to print on • the elimination of organic waste • the elimination of dust particles • for the electric discharging of subassemblies The advantage: Economic efficiency, environmental compatibility, process safety Plasmatreat GmbH | Bisamweg 10 | 33803 Steinhagen | Germany Telefon + 49 (0) 52 04.99 60-0 | Fax + 49 (0) 52 04.99 60-33 | www.plasmatreat.de | [email protected]

Test Inks For determining surface tension

Surface tension To obtain optimum surface wetting with a liquid (printing ink, adhesive), a substrate’s surface tension is considered as the major parameter. The surface tension is considered as a relative measure for evaluating the ­rinting ink coverage and the p expected bonding of the printing ink, a layer of­ ad­ esive or some other coating on the substrate. h Plastics have a low surface tension between < 28 mN/m and 40 mN/m. Experience has shown, only surface tensions starting at 38 – 42 mN/m facilitate good ­ adhesion conditions. A clear improvement in the surface tension can be achieved...

plasmatreat® test inks are available in three different series Series A – Formamid • especially suitable for warmer surfaces • longer readout time • not suitable for PVC surfaces • toxic • manufactured according to DIN 53 364 and ISO 8296 • available from 30 – 72 mN/m (in increments of twos) Series B – Methanol • suitable for all common surfaces • partly toxic (depending on the surface tension value) • manufactured according to DIN 53 364 • available from 28 – 72 mN/m (in increments of twos) Series C – Ethanol • suitable for all common surfaces • non-toxic, non-detrimental to health • manufacturing...