Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Flat Brushes
Origin	-
Brand	Zhongshui
Product Type	Dyne Test Pen
Available Levels	28, 30, 32, 34, 36, 38, 40, 42, 44 dyne/cm
Unit of Measurement	mN/m (dyne/cm)
Application Method	Direct surface marking
Primary Use	Surface tension testing for printing and coating
Compatible Materials	Plastic films, foils, and treated surfaces
Pen Tip Design	Elastic fiber tip for consistent flow
Storage Condition	Keep capped tightly in a cool, dry place
Package Contents	1 x Dyne Test Pen

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Essential for our quality control

We use these pens daily in our packaging facility to verify corona treatment levels. The elastic tip provides a very consistent line, making it easy to judge wetting behavior accurately.

Anonymous

Mar 27, 2026

Rating: 5/5

Fast shipping and great product

Ordered the 38 and 42 dyne levels specifically. They arrived quickly and were perfectly sealed. The markings are clear and easy to interpret within the critical 2-second window.

Anonymous

Mar 18, 2026

Rating: 5/5

Accurate readings

Compared these against our lab equipment and the results were spot on. Having the full range from 28 to 44 allows us to test various substrates without buying multiple kits.

Anonymous

Mar 10, 2026

Rating: 5/5

Reliable for flexographic printing

Our print team relies on these to ensure proper ink adhesion. The elastic pen design makes it comfortable to hold during repetitive testing tasks throughout the shift.

Anonymous

Mar 05, 2026

Rating: 4/5

Good value for money

Works as expected for checking surface energy on polyethylene films. The only reason for 4 stars is that the ink seems to dry out slightly faster than premium brands if not capped immediately.

Anonymous

Mar 02, 2026

Rating: 3/5

Decent but sensitive to temperature

The pens work well in standard conditions, but we noticed slight variations in flow when used in a cold warehouse. Best to let them acclimate to room temperature before use.

5 FAQ

Q: Is this suitable for testing metal surfaces?

A: These pens are primarily formulated for non-porous plastic films and foils. While they can technically mark metal, the results may not correlate standardly with plastic surface energy requirements for printing.

Q: Do you offer a kit with all levels from 28 to 44?

A: Currently, the pens are sold individually by specific dyne level. However, many customers purchase a set of the most common values (e.g., 38, 40, 42) together for comprehensive testing.

Q: How long does the ink remain visible for accurate reading?

A: The ink should be observed within 2 to 3 seconds after application. If it beads up immediately, the surface tension is lower than the pen level; if it stays wet, the surface tension is higher.

Q: What is the shelf life of these test pens?

A: When stored properly with the cap tightly sealed at room temperature, the typical shelf life is approximately 6 to 8 months from the date of manufacture.

Q: Can these pens be refilled once empty?

A: No, these Zhongshui Dyne Pens are designed as single-use disposable items to ensure the accuracy and purity of the test fluid. We recommend purchasing a new pen when the current one runs dry.

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