Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Flat Brushes |
| Origin | - |
| Brand | Japan Pacific |
| Product Type | Surface Tension Test Pen |
| Also Known As | Corona Pen, Dyne Pen |
| Available Ratings | 28, 30, 32, 34, 36, 38, 40-70 mN/m |
| Origin | Japan |
| Application Method | Direct Marker Application |
| Primary Use | Testing Surface Energy of Materials |
| Ideal For | Plastics, Films, Foils, and Coatings |
| Packaging | Individual Sealed Tube |
| Shelf Life | 12 Months from Manufacture Date |
Anonymous
Mar 31, 2026
Rating: 5/5
Standard for our printing press
We run a flexographic printing shop and need to ensure our substrates are ready for ink. These corona pens are the industry standard we rely on. No issues with accuracy or longevity.
Anonymous
Mar 26, 2026
Rating: 4/5
Good product, fast shipping
The pen works exactly as described. I ordered the 38 dyne level for our packaging line. The only reason for 4 stars instead of 5 is that the cap can be a bit tight to remove quickly, but the fluid flow is excellent.
Anonymous
Mar 22, 2026
Rating: 5/5
Reliable Japanese quality
I have tried other brands, but the Japan Pacific pens seem to last longer without drying out. The ink spread is very clear, making it easy to determine if the surface tension is sufficient for adhesion.
Anonymous
Mar 22, 2026
Rating: 5/5
Perfect for R&D testing
Our research team uses various dyne levels from 30 to 50. These pens provide accurate readings every time. They are indispensable for checking corona treatment effectiveness on new material batches.
Anonymous
Mar 07, 2026
Rating: 3/5
Works well but price fluctuates
The pen itself is great and gives accurate surface energy readings. However, I noticed the price varies quite a bit depending on the specific dyne number selected. Just keep an eye on the cost when ordering multiple ratings.
Anonymous
Mar 01, 2026
Rating: 5/5
Essential for our quality control lab
We use these pens daily to test the treat level of our polyethylene films before printing. The results are consistent and match our laboratory equipment readings perfectly. Highly recommended for industrial use.
Q: Is the fluid inside hazardous?
A: The fluid contains formamide and other solvents. 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: Can I use this pen on metal surfaces?
A: While primarily designed for plastics and films, these pens can technically be used on coated metals to check for contamination or coating integrity, though they are most accurate on polymer substrates.
Q: How do I interpret the results when using this pen?
A: If the liquid bead remains intact for 2 seconds, the surface tension is lower than the pen's rating. If it spreads evenly within 2 seconds, the surface tension is equal to or higher than the rating.
Q: Do you sell a kit with multiple dyne levels?
A: Currently, we sell individual pens for specific dyne levels (e.g., 30, 34, 38). You can add multiple specific ratings to your cart to create your own custom kit based on your testing requirements.
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. Always ensure the cap is tightly sealed immediately after use to prevent evaporation.
Cinnabar Liquid Rooster Comb Blood Daoist Bletilla Natural Raw Ore Water-Floated Cinnabar Powder Ink for Calligraphy and Painting
$4.53
Goat Hair Flat Wash Brush Background Wash Brush for Fine Line Traditional Chinese Painting Base Color Background Wool Brush Gouache Watercolor Oil Painting Soft Bristle Row Brush
$4.25
Pre-sale Litin The Husky and His White Cat Shizun: Past and Present Life Badge & Colored Paper Set (Mo Ran & Chu Wanning)
$24.00
Hot-Selling Street Fair and Temple Fair Toy Source - Wooden Puppet Rattle Drums, Cartoon Wooden Man Shakers
$1.50
Air Source Heat Pump Water Heater for Commercial and Home Heating by AMA Shengneng
$8,400.00
Waterproof Dry Bag for Outdoor Rafting and River Trekking - Wet/Dry Separation Storage for Swimming, Fitness, Beach, and Sand Activities
$8.42
Maichuang Continuous Peanut Roasting Machine - Electromagnetic Drum Roaster for Soybeans, Large-Scale Production Line Equipment
$2,356.00
Free Shipping: Colorful Cartoon Hand-Crank Drum Puppet Toy for Kids – Perfect for Street Markets and Temple Fairs
$64.00
Flower Doctor Balcony Vegetable Growing Box - Family Vegetable & Strawberry Planter, Rooftop Rectangular Plastic Flower Pot
$38.09
Miracle-Gro Organic Potting Soil for Balcony Gardens, Vegetables, Green Plants, Flowers, and General Home Gardening, 40L
$195.98
Silicone Drainage Mat for Faucet Side - Splash-Proof Pad for Kitchen Sinks and Bathroom Countertops
$3.57
Complete Dairy Processing Equipment: Yogurt Sterilization Fermentation Tank and Raw Milk Cooling Tank for Farms
$17,836.00
50x80mm Biggest Size Professional Rectangular Photosensitive
$75.62
Rose poem "Fox" Fabric Fragrance Spray
$3.15
Nangong Wenfang Healing Beautiful Words Calligraphy Copybook Small Regular Script Brush Tracing Transparent Cards for Women's Practice Entry-Level Elegant Fonts
$49.00
2025 New Cute Puppy Large Capacity Portable Travel Toiletry Bag, Handheld Makeup Organizer
$9.59
Cylindrical Granule Making Equipment Rotary Granulator for Rice Flour and Tartary Buckwheat Tea
$400.00
Face Painting Sponge Kit - Teardrop and Half-Round Magic Sponges for Base, Gradient, and Quick Designs
$2.11
Nutrient Soil and Submerged Hydroponic Clay Pebbles - Backfill for Bathrooms, Planters, and Soil-Free Green Plants
$18.40
Wenmo 100% Cotton Watercolor Paper 2026 Wall Calendar/Monthly Planner 300g DIY Calendar Sheet Sketch Marker Compatible
$17.70
Self-Priming Soybean Meal Corn Crusher Vertical Feed Mixer 1-Ton Feed Crushing & Mixing Integrated Machine
$6,650.00
Invisible Retainer Storage Case - Compact, Portable, Leak-Proof Soaking Box for Orthodontic Aligners
$18.10
Outdoor Travel Storage Shockproof Deep Waterproof Case with Cushioning for Mobile Electronics Emergency Parts EDC Tool Kit
$16.00
Guangxi Soilless Cultivation Ceramsite Substrate for Orchids and Green Plants - Lightweight Stone 5-30mm, Multiple Sizes Available for Hydroponics
$7.70
Deuter Germany Imported Waterproof Dry Bag - Ultra-Light Roll-Top Storage for Outdoor Clothing, Rafting, and Swimming
$102.00
Qingzhu Paper Blending Stump Set, Sketching Paper Stumps, Professional Large Size for Art Students, 3-Pack
$2.98
Water Curtain Spray Booth – Water Circulation Paint Mist Purifier, Eco-Friendly Stainless Steel Equipment
$773.00
Maike Outdoor Waterproof Barrel Bag - Portable Shoulder/Backpack for Swimming, Rafting, Beach Travel, and Water Sports
$22.70
Biliansheng Hair Transplant No-Shave Scar Planting 1000 Grafts Crown Density Enhancement
$12,000.00
Flat Floor Cable Raceway - Self-Adhesive Wire Hider for Power Strips and Network Cables, Anti-Step Protection and Aesthetic Cover
$3.30
![[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)
