Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Flat Brushes
Origin	-
Brand	SHEELON
Product Type	Dyne Test Pen
Surface Tension Levels	34 mN/m and 38 mN/m
Origin	Germany
Application Method	Direct Draw-Down
Primary Use	Corona Treatment Verification
Target Surfaces	Plastic, Film, Foil, and Coatings
Pen Tip Material	Felt Fiber
Solution Color	Blue Indicator Fluid
Packaging	Individual Protective Cap

6 reviews

Anonymous

Mar 25, 2026

Rating: 5/5

Standard industry tool

This is the standard pen we specify for all our suppliers to test their film outputs. Reliable, easy to read, and the dual values in one package are convenient.

Anonymous

Mar 23, 2026

Rating: 3/5

Works well but cap is tight

The testing fluid works perfectly fine and gives accurate readings. My only complaint is that the cap can be a bit difficult to remove sometimes, likely to prevent drying out though.

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect for coating validation

Using this to validate surface energy before applying adhesives. The distinction between the 34 and 38 dyne marks is very clear. Great tool for preventing adhesion failures.

Anonymous

Mar 13, 2026

Rating: 4/5

Good quality, fast drying

The fluid dries quickly which is great for production speed, but you have to be sharp when observing the bead-up. Overall a solid German-made product that performs as expected.

Anonymous

Mar 04, 2026

Rating: 5/5

Essential for our printing line

We use these pens daily to check the corona treatment on our polyethylene films. The 34 and 38 dyne levels are exactly what we needed for our specific ink adhesion tests. Very reliable results.

Anonymous

Mar 02, 2026

Rating: 5/5

Accurate and consistent

I've tried cheaper alternatives before, but they gave inconsistent readings. This SHEELON pen provides clear wetting behavior every time. Highly recommended for QC departments.

5 FAQ

Q: Can this pen be used on metal surfaces?

A: While primarily designed for plastics and films, it can technically be used on coated metals. However, dyne pens are most accurate on non-porous polymer surfaces where surface tension affects adhesion.

Q: Is the fluid toxic or hazardous?

A: The fluid contains formamide and other solvents. It should be used in a well-ventilated area. Please refer to the Safety Data Sheet (SDS) included with the product for full handling instructions.

Q: How long does the solution last once the pen is opened?

A: Under normal storage conditions with the cap tightly sealed after each use, the solution typically remains effective for 6 to 12 months. Avoid exposing the tip to air for extended periods.

Q: What does it mean if the fluid beads up immediately?

A: If the fluid beads up within two seconds, the surface energy of the material is lower than the dyne level of the pen. You may need to increase your corona treatment settings.

Q: Do you offer bulk discounts for purchasing multiple pens?

A: Yes, we offer tiered pricing for bulk orders suitable for large manufacturing facilities. Please contact our sales team directly with your required quantity for a custom quote.

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