The Accu Dyne test pens kit is a specialized tool designed to measure surface energy on various materials, particularly plastic films and other smooth, non-absorptive substrates[2][5]. This kit consists of marker pens filled with reagent-grade dyne testing fluids, covering a range of surface energy levels typically from 30 to 52 dynes/cm[1][4].

The key feature of these pens is their unique valve tip applicator, which sets them apart from other dyne testing methods[2]. This design prevents contamination of the test fluid inside the pen barrel, ensuring more accurate and reliable results. When using the pen, pressing the tip firmly opens a valve, allowing fresh fluid to flood the tip and flush away any contaminants[2].

To use the Accu Dyne test pens:

1. Apply the pen to the surface being tested.
2. Observe the behavior of the liquid.
3. If the liquid forms a continuous film for 3 seconds, the surface energy is at least equal to the pen’s dyne level.
4. If the liquid beads up in less than 1 second, the surface energy is lower than the pen’s dyne level.

By using pens with different dyne levels, you can determine the exact surface energy of the material[5].

These pens are particularly useful for:

– Printers, coaters, and laminators for quick, on-site testing
– Process control in manufacturing
– Field use by suppliers of films, sheets, coated boards, inks, coatings, and adhesives
– Some research and development applications

The Accu Dyne test pens offer several advantages:

– Fast and easy to use
– Provide hundreds of tests per pen
– Have a six-month shelf life
– Can be used on various smooth, non-absorptive substrates

To ensure accurate results, it’s crucial to:

1. Avoid contaminating the test surface
2. Use only clean, non-expired pens
3. Test on fresh areas of the sample each time
4. Store and use the pens at room temperature

Understanding surface energy is important for achieving optimal adhesion in various applications. By using these pens, manufacturers can determine if surface treatment (such as corona or plasma treatment) is necessary to improve wettability and adhesion of coatings, inks, or adhesives[5].