Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Flat Brushes
Origin	-
Brand	ACCO
Origin	USA
Dyne Range	30-72 mN/m
Ink Color	Blue
Application	Surface Tension Testing
Target Process	Corona Treatment Verification
Pack Type	Single Pen
Shelf Life	12 Months (Unopened)
Material Compatibility	Plastics, Films, Foils
Accuracy	+/- 1 Dyne Level

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Essential for our packaging line

We use these pens daily to verify corona treatment on our polyethylene films. The color contrast is excellent, and the results are consistent every time. Highly recommended for quality control.

Anonymous

Mar 23, 2026

Rating: 5/5

Standard industry tool

This is the gold standard for dyne testing in our facility. The range from 30 to 72 covers all our substrate needs. Delivery was fast and packaging was secure.

Anonymous

Mar 22, 2026

Rating: 4/5

Good value for money

Works well for routine checks. The blue ink is very visible against clear films. I deducted one star only because the tip can get slightly frayed after heavy use.

Anonymous

Mar 11, 2026

Rating: 4/5

Reliable but dries out if uncapped

Great product for testing surface energy. Just make sure to cap it immediately after use, or the ink evaporates quickly. Otherwise, it performs exactly as described.

Anonymous

Mar 10, 2026

Rating: 5/5

Perfect for adhesion checks

We needed a quick way to check if our printing surfaces were ready. This pen makes it incredibly easy to determine wettability without complex lab equipment.

Anonymous

Mar 03, 2026

Rating: 5/5

Accurate and durable

Been using ACCO pens for years. This specific model maintains its calibration well over time. It is a must-have for anyone working with treated plastics.

5 FAQ

Q: Does this cover the full 30-72 range in one pen?

A: No, this product listing is for a specific dyne level pen within the 30-72 range. You must select the specific dyne value required for your testing protocol, as each pen is calibrated to a single level.

Q: Is the ink toxic or hazardous?

A: The ink contains solvents typical for dyne tests. It should be used in a well-ventilated area. Please refer to the Safety Data Sheet (SDS) included with the product for detailed handling instructions.

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

A: Once opened, we recommend using the pen within 6 months for optimal accuracy, provided it is tightly capped after every use to prevent solvent evaporation.

Q: Can this pen be used on metal surfaces?

A: While primarily designed for plastics and films, it can technically be used on metals to check for cleanliness or oil residues, though specific metal-testing solutions are often preferred for precision.

Q: How do I interpret the results when using this pen?

A: If the ink beads up within two seconds, the surface tension is lower than the pen's rating. If it remains as a continuous film for at least two seconds, the surface tension meets or exceeds the rating.

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