Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Flat Brushes
Origin	-
Brand	A.Shine
Product Type	Dyne Test Pen
Available Levels	28, 30, 32, 34, 36, 38, 40 mN/m
Application	Surface Tension Testing
Target Materials	Plastic, Film, Foil, Coatings
Origin	USA
Pen Tip Material	Felt
Solution Volume	15 ml per pen
Storage Condition	Cool, dry place away from direct sunlight
Shelf Life	12 months from manufacture date

6 reviews

Anonymous

Mar 24, 2026

Rating: 5/5

Accurate and reliable

I've tried other brands, but A.Shine pens seem to last longer without drying out. The color contrast on the test surface is clear, making it easy to determine the dyne level accurately.

Anonymous

Mar 09, 2026

Rating: 4/5

Good value, fast shipping

Ordered the full set from 28 to 40. They arrived quickly and were well-packaged. One pen cap was slightly loose, but the fluid inside was fine. Works as expected for checking corona treatment levels.

Anonymous

Mar 08, 2026

Rating: 4/5

Solid product

Does exactly what it says. The only reason for 4 stars instead of 5 is that the label font is a bit small, making it hard to read the specific dyne number in low light.

Anonymous

Mar 06, 2026

Rating: 5/5

Great for training new staff

We bought these to train our new technicians on surface preparation. They are user-friendly and provide immediate visual feedback, which speeds up the learning process significantly.

Anonymous

Mar 04, 2026

Rating: 5/5

Perfect for small batch testing

As a small business owner doing custom vinyl work, these pens help me ensure my materials are ready for adhesive application. Simple to use and very effective.

Anonymous

Mar 02, 2026

Rating: 5/5

Essential for our quality control lab

We use these pens daily to test the surface energy of our packaging films before printing. The results are consistent and match our lab equipment readings perfectly. Highly recommended for industrial use.

5 FAQ

Q: Is the solution hazardous to handle?

A: The solution contains formamide and other chemicals. Please wear gloves when testing and avoid contact with eyes or skin. Refer to the included SDS sheet for detailed safety information.

Q: Do you offer bulk discounts for purchasing the full range?

A: Yes, we offer tiered pricing for bulk orders. Please contact our sales team directly through the 'Contact Seller' button for a custom quote on sets of 10 or more.

Q: Can these pens be used on metal surfaces?

A: These pens are specifically designed for non-porous polymer surfaces like plastics and films. While they might show wetting on clean metal, they are not calibrated for metal surface energy testing.

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

A: It is best to start with a mid-range value like 34 or 36 mN/m. If the liquid beads up, try a lower number; if it spreads evenly, try a higher number to find the exact threshold.

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

A: Once opened, we recommend using the pen within 6 months if the cap is tightly sealed after every use. Exposure to air can cause the solution to evaporate or change composition.

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