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.
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
Sketch Blending Stump and Knife Set - Art Supplies Including Paper Stumps, Makeup Sponges, Highlight Detail Tools, Charcoal Wipers, and Scraper Kit
$4.08
New Children's Potty Training Seat for Boys and Girls
$28.00
FRP Spray Purification Tower for Thermal Power Plant Exhaust Gas Treatment - Desulfurization, Denitrification, Acid Mist Scrubber, FRP Chimney
$680.00
Handmade Natural Gourd Cute Smiley Face Rattle Baby Soothing Toy Safe for Chewing No Paint
$32.30
Baby Wooden Rattle Toy - Chewable Traditional Goat Skin Shaker for Newborn Boys and Girls
$9.80
Yuanhengtong Whiteness Meter WSB-1/2Y/3Y/CY, Digital Whiteness Tester for Paper, Flour, Paint, Plastic, Ceramics, and Textiles
$1,055.80
G460 Fast-Drying Glue for Plastics Bonds PP PVC ABS PC PS Strong Low-Whitening Transparent Instant Adhesive
$38.80
Children's Drawing Board Blackboard Whiteboard Accessories Colorful Whiteboard Markers Chalk Set Magnetic Stickers Toys Letters Numbers Eraser
$3.00
Automatic Retractable Air Hose Reel - Pneumatic Hose Drum for Auto Repair, Detailing, and Water/Electric Applications
$295.00
Sheepskin Rattle Traditional Handmade Baby Safe to Chew Brass Stick Bell Clapper Rattle Intangible Cultural Heritage Leather Newborn
$16.00
Glass Reactor with Multi-Function Stirring and High-Temperature Resistance - Double-Layer Glass Reactor from Manufacturer, Customizable
$85.00
Charcoal Blending Stump Set for Sketching - Highlight, Shadow, and Detail Tools with Replaceable Sponge Tips for Artists
$4.80
Minimalist Stainless Steel Toothbrush Holder with Drainage - Ins Style Bathroom Organizer for Cosmetics
$10.40
Qili Automotive Paint Degreasing Cloth – Glue/Dust Removal Paper, Industrial Wiping & Absorbent Paper
$313.12
Qingzhu Sketch Blending Cotton - Professional Sponge Balls & Paper Stumps for Art Students, Colorful Thick Absorbent Drawing Tools
$4.38
Electric Scooter Dashboard Cover for Aima Metaverse PLAY Instrument Panel Screen Protector Waterproof Case
$13.50
Continental Tire 265/40R22 106V XL FR CSC5 SUV - Compatible with BYD Tang (Removed from Vehicle)
$618.00
Yandi Retainer Storage Case for Kids - Lightweight Portable Box for Orthodontic Aligners and Dentures
$8.42
![[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)
