Attributes

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)

6 reviews

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.

5 FAQ

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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