Anonymous
Mar 30, 2026
Rating: 3/5
Good product, strict storage needed
The pen works great when fresh, but the liquid evaporates faster than expected if not capped immediately after each use. Make sure to store it horizontally as instructed.
Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Flat Brushes |
| Origin | - |
| Brand | arcotest |
| Country of Origin | Germany |
| Product Type | Dyne Test Pen |
| Measurement Range | 18 to 105 mN/m |
| Application | Surface Tension Testing |
| Target Materials | Plastics, Films, Foils |
| Packaging | Individual Marker Pen |
| Liquid Volume | Approx. 10 ml |
| Shelf Life | 12 Months (Unopened) |
| Certification | ISO 9001 Compliant Manufacturing |
Anonymous
Mar 30, 2026
Rating: 3/5
Good product, strict storage needed
The pen works great when fresh, but the liquid evaporates faster than expected if not capped immediately after each use. Make sure to store it horizontally as instructed.
Anonymous
Mar 29, 2026
Rating: 4/5
Accurate but pricey
These dyne pens are very accurate for checking corona treatment levels. They are a bit more expensive than generic brands, but you get what you pay for in terms of consistency.
Anonymous
Mar 29, 2026
Rating: 5/5
Perfect for adhesion testing
Bought the full range from 18 to 105. Helps us determine exactly which primer or adhesive will work best on different plastic substrates. Highly recommended for industrial use.
Anonymous
Mar 28, 2026
Rating: 5/5
Industry standard
This is the gold standard for surface tension testing in our facility. Easy to read results and the wide range of dyne levels available makes it versatile for all our projects.
Anonymous
Mar 21, 2026
Rating: 5/5
Reliable and fast shipping
Received the original imported pens quickly. The cap seals tightly to prevent the liquid from drying out, which was a problem with our previous supplier.
Anonymous
Mar 03, 2026
Rating: 5/5
Essential for our QC lab
We use these pens daily to test surface energy on packaging films before printing. The German quality is evident; the ink flows consistently and the results are reliable every time.
Q: Can this pen be used on metal surfaces?
A: These pens are specifically designed for non-porous plastics, films, and foils to measure corona treatment. While they can technically mark metal, they are not calibrated or intended for measuring surface energy on metallic substrates.
Q: Do you offer bulk discounts for purchasing the full set?
A: Yes, we offer tiered pricing for bulk orders. Please contact our sales team directly via the 'Contact Seller' button with your required quantity for a custom quote on the full 18-105# set.
Q: How do I interpret the results when using the dyne pen?
A: Draw a line with the pen on the surface. If the liquid beads up within 2 seconds, the surface tension is lower than the pen's value. If it remains as a continuous film for at least 2 seconds, the surface tension is equal to or higher than the pen's value.
Q: What is the shelf life of the liquid once the pen is opened?
A: While unopened pens have a shelf life of about 12 months, once opened, the liquid should be used within 6 months provided the cap is sealed tightly immediately after every use to prevent evaporation.
Q: Is this an original arcotest product or a replica?
A: We guarantee that all 'Original Imported Germany arcotest' pens sold through our store are 100% authentic, sourced directly from authorized distributors in Germany.