Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Flat Brushes |
| Origin | - |
| Brand | UK PILLAR / Sherman Schumann |
| Model Number | Sumanpila Dyne Test Pen 38 |
| Dyne Level | 38 mN/m |
| Application | Surface Tension Testing & Corona Treatment Verification |
| Drying Time | Quick-Dry Formula |
| Security Feature | Anti-Counterfeit Marking |
| Tip Type | Felt Marker Tip |
| Compatible Surfaces | Plastics, Films, Foils, and Coated Papers |
| Pack Size | Single Unit |
| Country of Origin | United Kingdom |
Anonymous
Mar 26, 2026
Rating: 5/5
Essential for our QA process
We use these pens daily to verify corona treatment levels on our packaging films. The 38 dyne level is consistent, and the quick-dry feature speeds up our inspection line significantly.
Anonymous
Mar 23, 2026
Rating: 5/5
Trusted brand for industrial use
Sherman Schumann is a name we trust in the industry. This pen provides clear results for surface energy testing, ensuring our adhesives bond correctly.
Anonymous
Mar 23, 2026
Rating: 4/5
Good consistency
I've ordered these three times now, and the performance remains consistent across batches. The felt tip holds enough fluid for several hundred tests.
Anonymous
Mar 15, 2026
Rating: 5/5
Perfect for plastic printing prep
Before running large print jobs, we test the surface tension with this pen. It beads or spreads exactly as expected at 38 dynes. Highly recommended for print shops.
Anonymous
Mar 14, 2026
Rating: 4/5
Reliable but pricey
The accuracy is spot on compared to our lab equipment. The anti-counterfeit feature gives us confidence we are buying genuine products, though the price is slightly higher than generic brands.
Anonymous
Mar 11, 2026
Rating: 5/5
Fast drying is a game changer
The quick-dry formula means we don't have to wait around for results. It allows our technicians to move immediately to the next sample without smudging.
Q: Does this pen work on treated polyethylene films?
A: Yes, the Dyne Test Pen 38 is specifically designed to test surface tension on treated plastics like polyethylene and polypropylene films.
Q: Can I use this to test metal surfaces?
A: While primarily for polymers, it can indicate cleanliness on metals, but dyne levels are standardly used for measuring surface energy on non-porous plastics and coatings.
Q: How long does the ink take to dry?
A: The formula is engineered to be quick-dry, typically evaporating within 2 to 4 seconds under normal room conditions, allowing for immediate assessment.
Q: What does the anti-counterfeit feature look like?
A: Genuine pens include specific holographic labeling and unique batch codes on the barrel that can be verified through our official website.
Q: Is the refillable?
A: No, these test pens are disposable units designed to maintain strict calibration accuracy throughout their lifespan. Once the ink is depleted, the entire pen should be replaced.
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