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.
6/8/12Pcs Silicone Red Wine Glass Identification Marker Char
$27.44
Stainless Steel Sink Drain Basket – Expandable Kitchen Dish and Vegetable Rack
$12.35
Tungsten Carbide Internal Thread Tool Holder – Anti-Vibration CNC Turning Insert for Small Bore Threading (CNR)
$73.02
Henkel Loctite SICOMET 8400 77 99 40 50 Instant Adhesive for Metal and Rubber with BS Accelerator
$69.00
Colored Pencil Set, Basswood Hexagonal Raw Wood Pencils for Painting and Art Coloring
$21.68
Small Ceramic Herb Jar – Imperial Yellow Hexagonal Double-Layer Container for Angong Niuhuang Wan Pills
$8.80
Spanish Brush Master ESCODA PERLA Pearl White Toray Nylon Round Watercolor Brush, Short Handle 1430
$44.20
Qiwei COD Rapid Detector QW-COD-T/B - Chemical Oxygen Demand Tester with Potassium Dichromate Digestion for Wastewater
$3,330.16
Natural Wheat Straw Baby Rattle - Children's Musical Instrument Toy, Maraca, Shaker Bell for Newborns - Orff Music Instrument
$10.80
CANDLE.LAB | 100% Cotton Unwaxed Candle Wick Roll - Thin Stem Chandelier Candle Making Supplies #31
$25.00
Pneumatic Rotary Vibrator - Feiyu GT25 Pneumatic Vibrator - Quality Guaranteed
$997.00
Quick-Frozen Vegetable Deodorizing Sterilization Washer IRW Zhongfang Ready-to-Cook Vegetable Production Washing Line Semi-Finished Vegetable Processing Oxygen Equipment
$27,000.00
KETELES 105R7120 Carbon Fiber Road Bike - Lightweight Racing Bicycle with Gear Shifter
$11,339.00
Natural White Crystal Sugar Cube DIY Crystal Jewelry Accessories Materials Irregular White Crystal Blocks
$2.50
Foldable Silicone Brush Washing Bucket - Portable Water Container for Calligraphy and Painting Students
$8.42
Cute Cartoon Bird Ceramic Brush Washer - Decorative Pen Cleaning Cup and Photo Prop
$12.60
Kitchen Storage Rack with Drainage Tray – Organizer for Dishcloths, Faucets, Sink Areas, and Dishwashing Supplies
$4.15
Sheng Y Graffiti Paint Brush Set, Children's Stationery Kit with Art Watercolor Pens, Factory Direct Gift Supplies
$49.10
Ningbo Manufacturer Display and Storage Rack, Wall-Mounted Tire Storage for Home Garage, Customizable Wall Tire Rack
$237.60
Universal Low-Temperature 3D Printing Pen Filament PCL, Eco-Friendly Material Wire 1.75mm Compatible with Deli Pens, 40 Color Options
$3.80
Automatic Feeder - Stainless Steel Food Machinery Accessory Equipment
$20,150.00
Henkel Loctite Super Glue Series: 401, 406, 460, 480, 495, 4011, 4161, 496, 382, 410
$28.00
Over-Toilet Storage Rack with Tissue Organizer for Bathroom, Vanity, and Shower Gel - Multi-Use Bathroom Shelf
$27.66
15-inch Carbon Fiber FPV Drone Frame - High-Strength Quadcopter Aerial Photography Chassis Direct Sale
$396.44
Petal-Shaped Ceramic Tea Scoop and Holder for Gongfu Tea Ceremony
$97.00
Scented Candle Waxing Cotton Wick with Base Wick Fixer Sticker DIY Materials
$0.35
Stainless Steel Fish Tank Converter - Bucket to Aquarium Adapter with Inverted Stand and Faucet Spout for Mineral Water Jugs
$13.58
Non-woven Cleaning Cloths, Lint-free Wiping Rags, Oil-absorbing Paper, Machine Cleaning Cloth, Dust Removal Cloth for Subway Use (No Washing Required)
$138.00
Large Paint Brush Set - Watercolor Pen Kit for Children's Day Art and Drawing
$31.25
Foldable Car Tire Stone Removal Tool, Explosion-Proof Scraper Hook for Extracting Pebbles from Tires
$19.53
![[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)
