Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Flat Brushes |
| Origin | - |
| Brand | Schuman |
| Product Type | Dyne Test Pen |
| Available Dyne Levels | 28, 30, 32, 34, 36, 38, 40, 42, 44, 72 mN/m |
| Application Method | Brush Tip Application |
| Primary Use | Surface Energy Testing |
| Target Materials | Plastics, Films, Foils, and Coatings |
| Packaging | Individual Sealed Bottle |
| Origin | Authorized UK Distributor |
| Shelf Life | 12 Months from Manufacture |
| Safety Warning | Flammable Liquid, Keep Away from Heat |
Anonymous
Mar 31, 2026
Rating: 5/5
Accurate and durable
Been using Schuman pens for years. This batch from the UK distributor is genuine and performs perfectly. Critical for ensuring our adhesive bonds correctly to polyethylene surfaces.
Anonymous
Mar 23, 2026
Rating: 4/5
Good quality, fast shipping
Ordered the 38 and 40 dyne pens for our production line. They arrived quickly and work as expected. Only giving 4 stars because the cap can be a bit tight to remove with gloves on.
Anonymous
Mar 22, 2026
Rating: 5/5
Essential for our QC lab
We use these pens daily to test surface tension on packaging films before printing. The brush tip applies a consistent line, and the results are reliable every time. Great value for an authorized product.
Anonymous
Mar 07, 2026
Rating: 5/5
Reliable standard for our team
Our entire quality control team relies on these specific dyne levels. The 36 to 44 range covers most of our plastic substrate needs. No issues with drying out prematurely.
Anonymous
Mar 06, 2026
Rating: 3/5
Works well but pricey
The pens function correctly and give clear results, but they are slightly more expensive than other brands. However, knowing it is an authorized distributor gives peace of mind regarding authenticity.
Anonymous
Mar 01, 2026
Rating: 5/5
Perfect for corona treatment checks
Exactly what we needed to verify our corona treater settings. The fluid spreads evenly when the surface energy is sufficient and beads up when it is not. Highly recommended.
Q: Can I return the pens if I ordered the wrong dyne levels?
A: Due to safety regulations regarding flammable liquids, we cannot accept returns on opened dyne pens. If the package is unopened and in original condition, please contact our customer service within 14 days to arrange an exchange.
Q: What is the difference between the 38 and 40 dyne pens?
A: The number indicates the surface energy level in millinewtons per meter (mN/m). You select the pen that matches the required surface tension for your specific printing or bonding process. If the liquid beads up, the surface energy is lower than the pen's rating.
Q: Does this product come with a calibration certificate?
A: As an authorized distributor, our Schuman pens are manufactured to strict standards. While individual pens do not typically come with a unique calibration certificate, the batch meets ISO-compliant manufacturing specifications for dyne test fluids.
Q: How should these pens be stored to maintain shelf life?
A: Store the pens upright in a cool, dry place away from direct sunlight and heat sources. Ensure the cap is tightly sealed immediately after use to prevent the test fluid from evaporating or absorbing moisture.
Q: Are these pens suitable for testing metal surfaces?
A: While primarily designed for plastics, films, and foils, they can technically be used on coated metals. However, bare metals usually have very high surface energy, so lower dyne level pens may always spread, making them less useful for differentiation on untreated metal.
Maike Outdoor Sports Waterproof Backpack Wet-Dry Separation Ski Bag Fishing Creek Fins Multi-Function Gear Storage
$152.00
Viral NFC Chip Stickers for Music Wall - Adhesive Read/Write Tags for Song Scanning, Cards, and Photo Frames
$2.38
Rechargeable Generation 2 Personal Air Purifier - Safe Portable Electric Fan for Travel Commuting and Flights
$181.00
Integrated Sink Splash Guard with Silicone Drain Mat - Auto-Draining Countertop Organizer
$23.30
Ultra-Light Aluminum Camping Light Pole – Foldable Mini Lamp Stand for Outdoor Picnics and Tabletop Use
$8.33
bimoz Under-Desk Cable Organizer No-Drill Shelf for Home Office Socket Strip Router Wire Data Cable Fixer Minimalist Wire Winder Dual-Side Mount Ventilated Design
$40.80
Extended Deep-Cut External Thread Tool Holder with Relief Groove for Swiss-Type Lathe HKFF42R6001
$15.50
Meiao Dental Imported Dental Implant Package, Swiss ITI Straumann Implant Abutment, False Teeth, Filling, and Planting
$14,188.00
Assorted Colors Kids' Painting Crayons - Washable Oil Pastels in 12, 18, 24, or 36 Colors for Graffiti and Coloring
$2.47
Fruit and Vegetable Slicer - Stainless Steel Commercial Electric Multi-Function Shredder for Radish, Potato, Cucumber, Pepper, Automatic
$2,880.00
CAAS-Developed Granular Insecticide and Fungicide for Vegetable Gardens – Soil Pest Control and Fertilizer for Enhanced Vegetable Growth and Yield
$13.50
Marie's C6823 Sketch Blending Stumps (3-Pack), Professional Charcoal and Pastel Smudging Tools for Art Students and Beginners, Hard/Small/Highlight Set on Newsprint
$7.48
Inverted Water Dispenser Stand with Manual Pump for Large Mineral Water Bottles
$67.00
Lanzhai Flagship Store Multifunctional Retro Brush Washer Set, Creative Ceramic Large National Painting Tea Rinse Bowl, Art Display Paperweight, Student Calligraphy Supplies
$8.42
Multi-Function Vanity Shelf Over Toilet - Floor-Standing Thickened Plastic Storage Cabinet for Squat Toilet Gaps
$52.49
100% Cotton Watercolor Paper Pad 300gsm - Cold/Hot Press, 8K/16K/32K Sizes, Glued on Four Sides for Academy & Portable Sketching
$11.90
Commercial Large Shredding Machine Tornado Potato Slicer Wavy Slice Equipment Carrot Slicer Multi-Function
$20,000.00
Electric Heating Pasteurization Tank – Horizontal Spray Type for Fresh Milk and Food Sterilization
$11,211.00
![[First Batch Deposit] Spring Cherry & Pear Snow - Original Lolita Ballet-Style Cake Dress Chinese JSK](https://www.gosteppe.com/cache/small/product/269019/legacy-main-be5286e5316da63aa7d52258.webp)
[First Batch Deposit] Spring Cherry & Pear Snow - Original Lolita Ballet-Style Cake Dress Chinese JSK
$5.00
Bottled Water Electric Pump Bracket, Mineral and Pure Water Dispenser, Automatic Water Outlet Device
$383.98
Micro-Hyperbaric Oxygen Chamber - Rigid Sit/Lie Model for Home and Commercial Use, High-Altitude Oxygen Therapy Room
$150.00
Stainless Steel Illuminated Hotel Room Number Plate, Smart Electronic Door Sign with Do Not Disturb and Make Up Room Bell
$10.00
Paper Blending Stump A1zdq001 - Large Art Sketch Highlighting Tool for Students
$4.15
Continental Run-Flat Tires 225 235 245 255 265/45 50 55R17R18R19R20R21R22
$350.00
3D Printing Pen for Children - 3D Stereoscopic Drawing Toy for Boys and Girls (Ages 6+)
$35.70
MOOCAT Loose-Leaf Refill – 300G Wood Pulp Fine-Texture Blank Paper for OC Binders A9/B5/M5/M6 Hand Drawing
$12.90
Lanzhai Calligraphy Wool Felt Mat – Mini Arm Rest and Inkstone Pad with Creative Chinese Style Design for Painting and Writing
$7.48
Qing Dynasty Calligrapher Lin Zexu Guangeti Small Regular Script: Buddha Speaks of the Infinite Life Sutra, Brush Tracing Practice Long Scroll Copybook
$8.80
Lightweight Ceramsite Bottom Padding, Professional Backfill for Sunken Bathroom Engineering and Construction, Large Granules
$30.10
![[In Stock] MINISO YOYO Wind-Chasing Diary Series Aromatherapy Figure Blind Box – Youyou-chan Ornament](https://www.gosteppe.com/cache/small/product/269008/legacy-main-75745db0463ce5521fe5703d.webp)
[In Stock] MINISO YOYO Wind-Chasing Diary Series Aromatherapy Figure Blind Box – Youyou-chan Ornament
$49.00
![[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)
