Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Flat Brushes |
| Origin | - |
| Brand | ACCU |
| Origin | USA |
| Product Type | Surface Tension Test Pen |
| Available Dyne Levels | 30, 32, 34, 36, 38, 40, 42 |
| Application Method | Direct Draw-Down |
| Primary Use | Adhesion Testing |
| Target Surfaces | Plastics, Films, Foils |
| Packaging | Individual Sealed Vial |
| Shelf Life | 12 Months from Manufacture |
| Compliance | ISO Standard Testing Tools |
Anonymous
Mar 26, 2026
Rating: 4/5
Good tool for technicians
Very easy to use even for new technicians. The color contrast makes it easy to see if the line beads up or stays flat. Would recommend keeping spares.
Anonymous
Mar 21, 2026
Rating: 5/5
Genuine USA product
I was worried about counterfeits, but these are definitely the original ACCU pens imported from the USA. The fluid flow is perfect, not too wet or dry.
Anonymous
Mar 21, 2026
Rating: 5/5
Fast shipping and well packed
Arrived quickly and each pen was individually sealed to prevent evaporation. We ordered the full range from 30 to 42 dyne and everything works perfectly.
Anonymous
Mar 09, 2026
Rating: 4/5
Great quality, pricey
The quality is unmatched compared to generic brands, but they are a bit expensive. However, for critical adhesion testing, you cannot afford false readings.
Anonymous
Mar 06, 2026
Rating: 5/5
Essential for our QC lab
These pens are the industry standard for a reason. We use them daily to check corona treatment levels on our packaging films. The results are consistent and reliable every time.
Anonymous
Mar 06, 2026
Rating: 5/5
Reliable for printing prep
We use these before running large print jobs to ensure the substrate is treated correctly. It saves us from wasting ink and material on poor adhesion runs.
Q: What is the shelf life of these pens once opened?
A: Once opened, the pen should be used within a few months for best accuracy. Always recap immediately after use to prevent solvent evaporation which alters the dyne level.
Q: Are these pens suitable for metal surfaces?
A: These pens are primarily designed for non-porous polymer surfaces like plastics and films. While they can test cleaned metals, they are optimized for corona-treated substrates.
Q: How do I know which dyne level pen to start with?
A: It is recommended to start with a mid-range value like 38 dyne. If the liquid beads up, try a lower number; if it spreads evenly, try a higher number to find the exact threshold.
Q: Do you provide a certificate of analysis with the order?
A: Yes, all genuine USA ACCU pens come with batch-specific documentation verifying the surface tension values upon request at checkout.
Q: Can I return the pens if the dyne level seems off?
A: Since these are chemical testing tools, returns are accepted only if the seal was unbroken upon arrival. Please contact us immediately if you suspect a manufacturing defect.
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