Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Flat Brushes |
| Origin | - |
| Brand | Sheelon |
| Origin | Germany |
| Available Dyne Levels | 30, 32, 34, 36, 38, 40 mN/m |
| Application Method | Brush-on Liquid Test |
| Primary Use | Corona Treatment Verification |
| Suitable Substrates | Plastic Films, Foils, and Coatings |
| Liquid Color | Red |
| Bottle Material | High-Density Polyethylene (HDPE) |
| Shelf Life | 12 Months Unopened |
| Storage Temperature | 5°C to 25°C |
Anonymous
Mar 27, 2026
Rating: 4/5
Solid product
Does the job well. The liquid doesn't evaporate quickly even if left open for a few seconds during testing. Would recommend for industrial use.
Anonymous
Mar 10, 2026
Rating: 4/5
Good quality, fast shipping
The pen works exactly as described. I deducted one star only because the cap can be a bit tight to remove with gloves on, but the liquid quality is excellent.
Anonymous
Mar 06, 2026
Rating: 5/5
Essential for our packaging line
We use these pens daily to check surface tension on our polyethylene films. The results are consistent and the brush tip holds up well over time.
Anonymous
Mar 06, 2026
Rating: 5/5
Accurate and durable
We have been using Sheelon pens for years. This latest batch maintains the high accuracy we expect. Great for verifying treatment levels before printing.
Anonymous
Mar 03, 2026
Rating: 5/5
Reliable German engineering
Switched from a cheaper brand and the difference in consistency is noticeable. The wetting behavior is very clear, making it easy to train new staff.
Anonymous
Mar 01, 2026
Rating: 5/5
Perfect for QA testing
Our quality assurance team relies on these for batch testing. The 38 dyne level is our standard, and this pen gives us confidence in our corona treater settings.
Q: Is the liquid toxic?
A: The liquid contains formamide and other solvents. It should be handled with care, avoiding eye contact and ingestion. Please refer to the Safety Data Sheet (SDS) included with the product for full details.
Q: Do you sell a kit with all dyne levels from 30 to 40?
A: Yes, we offer a complete test kit containing individual pens for 30, 32, 34, 36, 38, and 40 mN/m levels. You can find it listed under the 'Test Kits' category on our store.
Q: What happens if the liquid beads up instead of spreading?
A: If the liquid beads up within 2 seconds, it indicates that the surface tension of the substrate is lower than the dyne level of the pen. You should try a pen with a lower dyne value to find the correct match.
Q: How long does the liquid last once the bottle is opened?
A: Once opened, we recommend using the pen within 6 months for optimal accuracy, provided the cap is tightly sealed after each use and stored at room temperature.
Q: Can this pen be used on metal surfaces?
A: These pens are specifically designed for non-porous plastic films and coatings. They are not intended for use on metal surfaces as the surface energy dynamics differ significantly.
Pad Printing Machine Parts - Zhongke 4-Inch Blade Clamp, Blade Holder, and Doctor Blade Frame (In Stock)
$4.50
Pneumatic Throttle Valve Quick Connect Fitting SL4-01/4-02/4-03 Air Pressure Regulator Flow Control Valve
$8.60
Pad Printing Silicone Rubber Heads Electric Long Round Square Durable Customizable 30-Year Established Store
$3.00
Specialized Vegetable Growing Box - Foam Balcony Planter, Rectangular Plastic Pot for Home Gardening
$41.70
Candy Naoko Gujima Mr. Saxophone City Pop Sheet Music with Accompaniment Demo
$37.00
Multi-Color Detachable Water Bucket Stand - Office Purified Water Dispenser Holder (Inverted)
$60.95
Oil-Based Original Strong Fast-Drying Adhesive for Metal, Plastic, Rubber, Ceramics, and Wood, Multi-Purpose Transparent Glue (Not 502)
$21.60
Jay Chou - Feng BROTHER_CHAO Piano Accompaniment Sheet Music
$50.00
Toplip Automatic Retractable Air Hose Reel, Water Drum, High-Pressure Foam Drum for Pneumatic Tools and Auto Repair
$118.00
500L Yogurt Production Line - Stand-Up Pouch Filling Machine with Complete Dairy Processing Equipment and Fermentation Tank
$13,720.00
5A Grade Uruguay Natural Deep Purple Amethyst Loose Beads DIY Crystal Accessories Amethyst Loose Round Beads Semi-Finished
$1.20
Car Vacuum Cleaner - High Suction, Compact, Silent, and High-Power
$68.89
Fifty Seven-Character Quatrains in Wang Xizhi's Running Script Calligraphy
$67.00
Food-Grade Square Retainer Storage Case for Orthodontic Aligners and Dentures
$6.72
365-Day Electric Guitarist Training Plan by Toshiro Miyako – Rock Electric Guitar Chinese Tutorial
$53.00
Portable Invisible Aligner Case - Compact Breathable Box for Orthodontic Retainers, Dentures, and Cleaning Storage
$18.80
Makeup Room Shelf Triangle Bathroom Corner Storage Rack No-Drill Wall-Mounted Vanity Organizer
$23.82
Stainless Steel Sink Organizer for Sponges and Steel Wool - Drill-Free Dishwashing Pad Rack with Drainage
$9.50
Monet Detail Watercolor Brush Set - Goat Hair Liner, Round Wolf Hair, Flat Oil Painting and Gouache Brushes
$76.00
365-Day Electric Guitarist Development Plan Beginner Introductory Electric Guitar Textbook Self-Study Tutorial Basic Skills Practice
$28.90
Over-Toilet Storage Rack for Bathroom - Multi-Functional No-Drill Organizer
$14.70
Wuxi 3D Five-Axis CNC High-Pressure Waterjet Cutting Machine for Metal, Glass, and Stone Inlay Patterns
$431,980.00
Zodiac Dragon & Snake Rattle Toy for Babies, Sheepskin Drum Head, Solid Wood, Non-Toxic, Chewable, Sensory Grasping Toy for 6+ Months
$14.80
Menghu Custom Plush Squeaky Keychain with Custom Voice - DIY Anime Comic Fabric Mini Pillow Charm
$12.80
Hell Jazz Drumming: Ultimate Drum Skill Training Institute - Complete Rock Drum Kit Manual and Tutorial for Drummers
$58.00
Custom Calligraphy Felt Mat for Chinese Painting and Brush Writing – Wool Felt Desk Pad or Wall Mat for Four Treasures of the Study
$9,022.00
Mini Watercolor Paint Notebook – Compact, Portable, Thickened Sketchbook for Markers, Ideal for Students and Casual Drawing
$7.58
Manufacturer Sales 35-Piece Automotive Repair Tool Set, 1/2" Pneumatic Socket Set, Extended Impact Sockets
$165.00
Portable Invisible Aligner Case for Invisalign and Children's Orthodontic Retainers
$12.50
Paper Blending Stumps Set for Art Highlighting and Sketching, Professional Smudging Tools for Fine Arts Students
$2.65
![[Customizable] Blank DIY Bookmarks - Thickened Hard Cardstock in Multiple Sizes with Tassels for Kindergarten and Elementary Art, Calligraphy, and Reading Gifts](https://www.gosteppe.com/cache/medium/product/386159/legacy-main-05a2e5e73e5ac60017fbef5e.webp)
