Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Flat Brushes |
| Origin | - |
| Brand | USA ACCU |
| Product Type | Dyne Test Pens |
| Available Dyne Levels | 30, 32, 34, 36, 38-72 mN/m |
| Application | Surface Tension Testing |
| Industry Use | Printing, Coating, and Bonding |
| Pen Tip Material | Felt Fiber |
| Solution Volume | 15 ml per pen |
| Shelf Life | 12 Months (Unopened) |
| Storage Temperature | 5°C to 25°C |
| Country of Origin | USA |
Anonymous
Mar 27, 2026
Rating: 5/5
Fast shipping and great product
Ordered the 30, 32, and 34 dyne pens specifically for low-energy surfaces. They arrived well-packaged and worked straight out of the box.
Anonymous
Mar 23, 2026
Rating: 4/5
Standard industry tool
Does exactly what it is supposed to do. The only minor issue is that the caps can be a bit tight sometimes, but that ensures the solution doesn't evaporate.
Anonymous
Mar 20, 2026
Rating: 5/5
Perfect for printing prep
Ensures our substrates are ready for ink adhesion. The felt tips are durable and do not fray easily even with frequent use.
Anonymous
Mar 09, 2026
Rating: 5/5
Reliable and consistent
I have used various brands over the years, but USA ACCU pens provide the most consistent results for our corona treatment verification process.
Anonymous
Mar 04, 2026
Rating: 4/5
Good value for bulk purchase
We bought the full set from 38 to 72. Most work perfectly, though one pen in the 60 range seemed slightly dry upon arrival. Customer service replaced it immediately.
Anonymous
Mar 03, 2026
Rating: 5/5
Essential for our quality control lab
These pens are incredibly accurate for testing surface energy on our plastic films. The color contrast is clear, making it easy to determine the dyne level quickly.
Q: How should I store these pens to maximize their shelf life?
A: Please store the pens horizontally in a cool, dry place away from direct sunlight and heat sources. Ensure the caps are tightly sealed after every use to prevent evaporation.
Q: Can these pens be used on metal surfaces?
A: Yes, these dyne test pens are suitable for testing surface tension on various materials including plastics, metals, glass, and coated papers.
Q: Are replacement tips available for these pens?
A: No, the felt tips are integrated into the pen design. Once the tip is worn out or the solution is depleted, the entire pen unit should be replaced to ensure accuracy.
Q: What does it mean if the liquid beads up within 2 seconds?
A: If the test liquid beads up or retracts within 2 seconds, the surface energy of the material is lower than the dyne level of the pen used. You should try a pen with a lower dyne value.
Q: Is there a certificate of analysis included with the shipment?
A: Yes, each batch of dyne test pens comes with a Certificate of Analysis (CoA) verifying the surface tension values. You can find it inside the packaging or request a digital copy from us.
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