Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Flat Brushes |
| Origin | - |
| Brand | Cuiyuan |
| Origin | Shanghai, China |
| Product Type | Dyne Test Pen |
| Available Levels | 22, 24, 26, 28, 30, 32, 34, 36 mN/m |
| Application | Surface Tension Testing |
| Target Materials | Plastic films, Foils, Coatings |
| Packaging | Individual Plastic Case |
| Shelf Life | 12 Months (Unopened) |
| Storage Condition | Cool and Dry Place |
| Usage Method | Draw line on surface and observe beading |
Anonymous
Mar 18, 2026
Rating: 3/5
Decent but dries fast
The pen works well initially, but I noticed the fluid evaporates quickly if you leave the cap off even for a minute. Need to be very careful.
Anonymous
Mar 07, 2026
Rating: 5/5
Perfect for our needs
We process a lot of corrugated boxes and needed to verify corona treatment. These pens are simple to use and give immediate results.
Anonymous
Mar 06, 2026
Rating: 5/5
Accurate readings
Compared these against our lab equipment and the readings were spot on. Highly recommend for anyone needing quick surface energy checks.
Anonymous
Mar 04, 2026
Rating: 4/5
Good value for money
Works as expected for testing PE and PP films. The only reason for 4 stars is that the shipping took a bit longer than anticipated, but the product itself is great.
Anonymous
Mar 04, 2026
Rating: 5/5
Reliable tool
I bought the set with multiple dyne levels. It makes troubleshooting coating issues very easy. The build quality feels sturdy.
Anonymous
Mar 02, 2026
Rating: 5/5
Essential for quality control
We use these pens daily in our packaging line to ensure proper ink adhesion. The results are consistent and the pen lasts a long time if capped correctly.
Q: What is the shelf life after opening the pen?
A: Once opened, the solution should be used within a few months provided the cap is tightly sealed immediately after each use to prevent evaporation.
Q: Is this suitable for testing metal surfaces?
A: These pens are primarily formulated for plastics, films, and coated papers. While they might work on some treated metals, they are not optimized for bare metal surface tension testing.
Q: How do I know which dyne level pen to start with?
A: It is recommended to start with a mid-range value like 30 or 32 mN/m. If the liquid beads up, try a lower number; if it spreads evenly, try a higher number to find the exact threshold.
Q: Can these pens be refilled once empty?
A: No, these Cuiyuan Dyne Test Pens are designed for single use and cannot be refilled. Please dispose of them according to local chemical waste regulations.
Q: Do you offer a bulk discount for purchasing all levels from 22 to 36?
A: Yes, we offer special pricing for full sets and bulk orders. Please contact our sales team directly through the 'Contact Seller' button for a custom quote.
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