Test Inks

Our Surface Tension Test Ink enables precise testing of surface energy and wettability across a wide range of materials. The individual bottles are ideal for refilling specific measurement ranges of our test ink set. Available in multiple mN/m levels from 29 to 46 mN/m, the test inks support reliable quality control and surface evaluation before bonding, printing, or coating processes. Refill Only What You Need Instead of Replacing the Entire Set Replace only the required test ink and expand existing test sets economically and sustainably. Your Benefits at a Glance ✔ Completely non-toxic ✔ Measurement range 29–46 mN/m ✔ Precise surface testing ✔ Fast application ✔ Suitable for all smooth materials ✔ Professional quality Typical Applications Ideal for plastics processing, adhesive applications, printing, coating, quality control, and industrial manufacturing. Order Now Order the matching test ink online now and expand your testing system according to your needs.

The AP Surface Tension Tester enables fast and reliable testing of the surface tension and surface energy of a wide variety of materials. It is ideal for checking whether surfaces are optimally prepared for bonding, printing processes, coatings, or further processing steps. This practical test pen supports quality assurance and process optimization by allowing the wettability of plastics, coated materials, and treated surfaces to be evaluated quickly and easily. Reliable Surface Testing Whether in industrial manufacturing, workshops, laboratories, or at home – the surface tension tester delivers simple and reproducible results directly on the surface. Your Benefits at a Glance ✔ Fast and reliable testing of surface tension ✔ Support for bonding and coating processes ✔ Suitable for plastics and treated materials ✔ Simple and precise handling ✔ Professional industrial quality ✔ Fast evaluation of surface energy Typical Areas of Application Ideal for plastics processing, bonding preparation, printing applications, coating control, quality assurance, and industrial manufacturing processes. Application & Evaluation (38 mN/m)This is how easy the test works:Application: Draw a steady line on the surface to be tested using the test pen.Observation: Wait exactly 2 seconds to see how the ink behaves.Evaluation:The ink remains stable (continuous line): The surface tension is 38 mN/m or more. The surface is optimally wettable – ideal for secure further processing such as printing, bonding, or painting.The ink retracts (beading effect): The surface tension is below 38 mN/m. The wettability is insufficient, meaning inks or adhesives would not adhere optimally. The surface should be cleaned or pre-treated. Order Now Order the AP Surface Tension Tester conveniently online now and benefit from reliable test results and professional process control.

Our AP Surface Tension Test Ink Set enables highly precise determination of surface energy. Featuring seven perfectly matched test inks in a premium wooden box, you can determine the surface tension on various materials quickly, reliably, and safely. The high-quality test ink set from AP is the ideal solution for quality controls, laboratory applications, and industrial pre-treatment processes. Accurately determining surface tension ensures that subsequent processes such as bonding, printing, painting, or coating achieve optimal adhesion. Non-toxic, long-lasting and sustainable All test inks included in the set are classified as non-toxic and are suitable for all common surfaces such as plastics, metals, glass, or ceramics. The fluids are characterized by a particularly long shelf life. For sustainable and cost-effective operation, depleted bottles can easily be purchased individually at any time. The included, robust wooden box provides optimal protection for the bottles against shocks and light exposure, ensuring clean and safe storage directly at your workspace. Your benefits at a glance ✔ Professional test ink set for determining surface tension ✔ Broad measuring range from 29 mN/m to 46 mN/m for all common materials ✔ Non-toxic formulation – safe for daily use ✔ Long shelf life of the inks with the option to reorder individual bottles ✔ Premium wooden box Scope of Delivery • 1x Test ink 29 mN/m (10g) • 1x Test ink 32 mN/m (10g) • 1x Test ink 35 mN/m (10g) • 1x Test ink 38 mN/m (10g) • 1x Test ink 40 mN/m (10g) • 1x Test ink 42 mN/m (10g) • 1x Test ink 46 mN/m (10g) • 1x Exclusive wooden box with quick guide Application Instructions Apply the test ink swiftly to the surface to be tested using the integrated brush. If the ink line remains continuous for at least 2 seconds without shrinking, the material's surface tension is equal to or higher than the value of the ink. If the line shrinks into droplets, the test must be repeated with the next lower value. Buy AP Test Ink Set online now Order the AP Surface Tension Test Ink Set online now and secure the perfect foundation for flawless surface testing and maximum process reliability.