Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Flat Brushes |
| Origin | - |
| Brand | SHEELON |
| Origin | Germany |
| Series | White Series |
| Model Number | 29-105# |
| Measurement Type | Surface Tension (Dyne/cm) |
| Application | Corona Treatment Verification |
| Ink Color | White |
| Tip Material | Felt Fiber |
| Packaging | Individual Plastic Case |
| Shelf Life | 12 Months (Unopened) |
Anonymous
Mar 29, 2026
Rating: 4/5
Good quality, fast shipping
The pen works as expected for surface energy testing. The only reason for 4 stars is that the cap can be a bit tight to remove quickly during high-volume testing.
Anonymous
Mar 15, 2026
Rating: 5/5
Accurate and durable
I appreciate the durability of the casing. We drop these often in the factory environment, and they keep working. The measurement accuracy is spot on.
Anonymous
Mar 15, 2026
Rating: 5/5
Essential for our printing line
We use these pens daily to check corona treatment on our plastic films. The white ink contrasts well on dark substrates, and the tension reading is consistent with our lab results.
Anonymous
Mar 09, 2026
Rating: 5/5
Reliable German engineering
Been using SHEELON products for years. This White Series pen is accurate and the felt tip holds ink well without drying out too fast between uses.
Anonymous
Mar 08, 2026
Rating: 3/5
Works but pricey
The pen functions correctly and gives clear results, but it is slightly more expensive than other brands we have tried. You pay for the brand name.
Anonymous
Mar 07, 2026
Rating: 5/5
Perfect for QA department
Our quality assurance team relies on these for batch testing. The 29-105# range covers most of our packaging needs. Highly recommended for industrial use.
Q: What is the specific dyne level range for this model?
A: This specific model (29-105#) is calibrated for a precise tension point within the White Series range. Please refer to the label on the pen body for the exact dyne/cm value.
Q: Is the ink toxic or hazardous?
A: The ink is formulated for industrial testing. While generally safe for handling, we recommend avoiding skin contact and washing hands after use. Please consult the SDS for detailed safety information.
Q: How should I store the pen to maximize shelf life?
A: Store the pen horizontally in a cool, dry place away from direct sunlight. Ensure the cap is clicked shut tightly immediately after each use to prevent ink evaporation.
Q: Does the white ink show up clearly on black plastic?
A: Yes, the White Series is specifically designed to provide high contrast on dark or black substrates, making the wetting pattern easy to observe.
Q: Can this pen be used on metal surfaces?
A: Yes, Dyne pens can be used on metal surfaces to test cleanliness and surface energy prior to painting or bonding, provided the surface is smooth.
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