Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Flat Brushes
Origin	-
Brand	SHEELON
Origin	Germany
Color	Pink Body with Black Cap
Dyne Range	22 to 72 mN/m
Application	Surface Tension Testing
Target Materials	Plastic, Film, Foil, Glass
Tip Type	Felt Marker Tip
Accuracy	+/- 1 Dyne Level
Shelf Life	12 Months (Unopened)
Package Contents	1 Test Pen, User Manual

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Essential for our QC lab

We use these pens daily to verify corona treatment levels on our packaging films. The German engineering really shows in the consistency of the ink flow and the accuracy of the dyne levels. Highly recommended for industrial quality control.

Anonymous

Mar 25, 2026

Rating: 5/5

Standard for our production line

We standardized on these pink dyne pens across all three of our manufacturing plants. They are durable, easy to read, and the staff finds them very intuitive to use for quick cleanliness checks.

Anonymous

Mar 16, 2026

Rating: 5/5

Consistent results every time

I have tried other brands that seemed to dry out quickly or give inconsistent readings. This SHEELON pen has lasted months and provides the same accurate result on the first stroke as the last. Very satisfied.

Anonymous

Mar 09, 2026

Rating: 3/5

Good product, slow shipping

The pen itself is fantastic and does the job perfectly for measuring surface energy. However, the shipping took longer than expected. Once it arrived, though, it has been a great addition to our toolkit.

Anonymous

Mar 08, 2026

Rating: 5/5

Perfect for adhesion testing

Bought this to test adhesion readiness on polyethylene sheets before bonding. The color contrast is excellent, making it easy to see if the liquid beads up or spreads. A must-have tool for any coating application.

Anonymous

Mar 03, 2026

Rating: 4/5

Reliable but pricey

This pen works exactly as described. It gives clear results on whether the surface tension is sufficient for printing. The only downside is the price compared to generic brands, but you get what you pay for in terms of reliability.

5 FAQ

Q: How should I store the pen to maximize its shelf life?

A: Store the pen horizontally in a cool, dry place away from direct sunlight and keep the cap tightly sealed when not in use to prevent evaporation.

Q: What is the difference between the pink and blue versions of this pen?

A: The color of the body typically indicates the specific dyne range series. Please check the label on the cap for the exact numerical range included in that specific pen.

Q: Is this safe to use on food packaging materials?

A: Yes, the test is non-destructive and the small amount of fluid used evaporates quickly. However, ensure the area is dry before the packaging comes into contact with food.

Q: Can this pen be refilled once the ink runs out?

A: No, the SHEELON Dyne Pens are designed as single-use disposable units to ensure the chemical integrity and accuracy of the test fluid are maintained.

Q: How do I know which dyne level to start testing with?

A: It is best to start with a mid-range value based on your material specifications, then move up or down depending on whether the ink beads up or spreads evenly.

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