Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Flat Brushes |
| Origin | - |
| Brand | A.Shine |
| Product Type | Dyne Test Pen |
| Available Levels | 28, 30, 32, 34, 36, 38, 40 mN/m |
| Application | Surface Tension Testing |
| Target Materials | Plastic, Film, Foil, Coatings |
| Origin | USA |
| Pen Tip Material | Felt |
| Solution Volume | 15 ml per pen |
| Storage Condition | Cool, dry place away from direct sunlight |
| Shelf Life | 12 months from manufacture date |
Anonymous
Mar 24, 2026
Rating: 5/5
Accurate and reliable
I've tried other brands, but A.Shine pens seem to last longer without drying out. The color contrast on the test surface is clear, making it easy to determine the dyne level accurately.
Anonymous
Mar 09, 2026
Rating: 4/5
Good value, fast shipping
Ordered the full set from 28 to 40. They arrived quickly and were well-packaged. One pen cap was slightly loose, but the fluid inside was fine. Works as expected for checking corona treatment levels.
Anonymous
Mar 08, 2026
Rating: 4/5
Solid product
Does exactly what it says. The only reason for 4 stars instead of 5 is that the label font is a bit small, making it hard to read the specific dyne number in low light.
Anonymous
Mar 06, 2026
Rating: 5/5
Great for training new staff
We bought these to train our new technicians on surface preparation. They are user-friendly and provide immediate visual feedback, which speeds up the learning process significantly.
Anonymous
Mar 04, 2026
Rating: 5/5
Perfect for small batch testing
As a small business owner doing custom vinyl work, these pens help me ensure my materials are ready for adhesive application. Simple to use and very effective.
Anonymous
Mar 02, 2026
Rating: 5/5
Essential for our quality control lab
We use these pens daily to test the surface energy of our packaging films before printing. The results are consistent and match our lab equipment readings perfectly. Highly recommended for industrial use.
Q: Is the solution hazardous to handle?
A: The solution contains formamide and other chemicals. Please wear gloves when testing and avoid contact with eyes or skin. Refer to the included SDS sheet for detailed safety information.
Q: Do you offer bulk discounts for purchasing the full range?
A: Yes, we offer tiered pricing for bulk orders. Please contact our sales team directly through the 'Contact Seller' button for a custom quote on sets of 10 or more.
Q: Can these pens be used on metal surfaces?
A: These pens are specifically designed for non-porous polymer surfaces like plastics and films. While they might show wetting on clean metal, they are not calibrated for metal surface energy testing.
Q: How do I know which dyne level pen to start with?
A: It is best to start with a mid-range value like 34 or 36 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: What is the shelf life once the pen is opened?
A: Once opened, we recommend using the pen within 6 months if the cap is tightly sealed after every use. Exposure to air can cause the solution to evaporate or change composition.
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