Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Flat Brushes
Origin	-
Brand	SHEELON
Origin	Germany
Product Type	Dyne Pen / Tension Test Pen
Series	Powder Colorful Cloud Series
Application	Surface Energy Testing
Target Materials	Plastic, Film, Metal, Glass
Ink Formulation	Non-toxic Industrial Grade
Packaging	Individual Protective Case
Shelf Life	12 Months (Unopened)
Storage Condition	Cool and Dry Place

6 reviews

Anonymous

Mar 30, 2026

Rating: 3/5

Works well but pricey

The performance is undeniably good and accurate, but the price point is higher than some competitors. You get what you pay for in terms of consistency though.

Anonymous

Mar 25, 2026

Rating: 4/5

Good quality, fast delivery

The build quality feels premium compared to other brands we have tried. The ink flows smoothly without dripping. Only wish the color coding was slightly more distinct in low light.

Anonymous

Mar 21, 2026

Rating: 5/5

Highly recommended for manufacturing

Our production line efficiency improved since switching to these test pens. No more guesswork regarding surface readiness for coating or bonding.

Anonymous

Mar 17, 2026

Rating: 5/5

Essential for our QC lab

These pens are incredibly consistent. We use them daily to test surface tension on packaging films before printing, and the results are reliable every time.

Anonymous

Mar 10, 2026

Rating: 5/5

Perfect for adhesion testing

We needed a reliable way to check corona treatment levels on our plastic parts. This pen series makes the process quick and easy for our floor technicians.

Anonymous

Mar 06, 2026

Rating: 5/5

German engineering shows

You can tell this is a high-quality product. The tip durability is excellent, and it hasn't dried out even after a few weeks of intermittent use.

5 FAQ

Q: How do I know which dyne level to select?

A: The required dyne level depends on your specific material and the subsequent process (printing, gluing, etc.). Please refer to your material supplier's specifications or conduct a gradient test.

Q: Is the ink safe to use on food packaging materials?

A: The ink is formulated for industrial testing purposes. While non-toxic, it should not come into direct contact with food products. It is suitable for testing the exterior of food packaging.

Q: Does this come with a calibration certificate?

A: Standard units do not include an individual calibration certificate, but batch test reports are available upon request for large orders.

Q: What is the shelf life of the ink once the bottle is opened?

A: Once opened, we recommend using the pen within 6 months if stored correctly with the cap tightly sealed to prevent evaporation.

Q: Can these pens be used on curved surfaces?

A: Yes, the flexible tip design allows for accurate application on both flat and moderately curved surfaces.

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