Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Flat Brushes
Origin	-
Brand	Cuiyuan
Origin	Shanghai, China
Product Type	Dyne Test Pen
Available Levels	22, 24, 26, 28, 30, 32, 34, 36 mN/m
Application	Surface Tension Testing
Target Materials	Plastic films, Foils, Coatings
Packaging	Individual Plastic Case
Shelf Life	12 Months (Unopened)
Storage Condition	Cool and Dry Place
Usage Method	Draw line on surface and observe beading

6 reviews

Anonymous

Mar 18, 2026

Rating: 3/5

Decent but dries fast

The pen works well initially, but I noticed the fluid evaporates quickly if you leave the cap off even for a minute. Need to be very careful.

Anonymous

Mar 07, 2026

Rating: 5/5

Perfect for our needs

We process a lot of corrugated boxes and needed to verify corona treatment. These pens are simple to use and give immediate results.

Anonymous

Mar 06, 2026

Rating: 5/5

Accurate readings

Compared these against our lab equipment and the readings were spot on. Highly recommend for anyone needing quick surface energy checks.

Anonymous

Mar 04, 2026

Rating: 4/5

Good value for money

Works as expected for testing PE and PP films. The only reason for 4 stars is that the shipping took a bit longer than anticipated, but the product itself is great.

Anonymous

Mar 04, 2026

Rating: 5/5

Reliable tool

I bought the set with multiple dyne levels. It makes troubleshooting coating issues very easy. The build quality feels sturdy.

Anonymous

Mar 02, 2026

Rating: 5/5

Essential for quality control

We use these pens daily in our packaging line to ensure proper ink adhesion. The results are consistent and the pen lasts a long time if capped correctly.

5 FAQ

Q: What is the shelf life after opening the pen?

A: Once opened, the solution should be used within a few months provided the cap is tightly sealed immediately after each use to prevent evaporation.

Q: Is this suitable for testing metal surfaces?

A: These pens are primarily formulated for plastics, films, and coated papers. While they might work on some treated metals, they are not optimized for bare metal surface tension testing.

Q: How do I know which dyne level pen to start with?

A: It is recommended to start with a mid-range value like 30 or 32 mN/m. If the liquid beads up, try a lower number; if it spreads evenly, try a higher number to find the exact threshold.

Q: Can these pens be refilled once empty?

A: No, these Cuiyuan Dyne Test Pens are designed for single use and cannot be refilled. Please dispose of them according to local chemical waste regulations.

Q: Do you offer a bulk discount for purchasing all levels from 22 to 36?

A: Yes, we offer special pricing for full sets and bulk orders. Please contact our sales team directly through the 'Contact Seller' button for a custom quote.

Explore your interests

Deli Universal Staples 24/6 Standard Size No. 12 Staple Pins 0012 - Stainless Steel Durable Small Staples for Staplers

$7.90

XuedeLe Calculator, Goddess Style for Office, Cute Student and Accounting Solar Multifunctional Internet-Famous Mini Small Computer, High Aesthetic Pink Female Voice Model with Large Keys for Commercial Use

$8.50

Bulk Pack | GuGu WanWu Concentric Circle Dual Blush Gradient Soft Light Round Stickers for Journaling, Basic Decorative Marking and Background

$4.25

Qingheji About Youth Classmate Record Book for Elementary School 6th Grade Ins Niche Minimalist High-Aesthetic Graduation Memorial Album

$37.50

Tengzhou Dongfang Hailida ZQ3050 Mechanical Radial Drill Press Gears z20/39 Teeth, z29/47 Teeth, z31/58 Teeth

$140.10

[Customizable] Blank DIY Bookmarks - Thickened Hard Cardstock in Multiple Sizes with Tassels for Kindergarten and Elementary Art, Calligraphy, and Reading Gifts

$9.90

Custom Record Book Table Creation Printing Account Book Register Appointment Book Table Book Detail Sheet Printing Customization Various Account Books Powerful Manufacturer

$4.25

Deli Transparent Tape Dispenser - Mini Desktop Cutter with Serrated Edge for Office Supplies

$6.70

Rongbaozhai Shengtan Calligraphy Brush Special Mixed Hair Medium Wolf Hair Medium Kaifu Professional Grade Goat Hair National Painting Extra Large Clerical Script Yan Style Kaishu Xingshu Beginner Calligraphy Set

$29.70

Calligraphy Fountain Pen with Curved Nib for Students and Adults, Hand-Polished High-Aesthetic Hard Brush Pen for Business, Office, and Personalized Signatures

$13.82

Custom Desk Mat Board Compatible with Old Guangming Yuandi Study Desks - Winner/Wisdom/Benevolence Solid Wood A Series Custom Mats

$18.00

Marie's Sketch Tool Set for Beginners, Basic Sketching Pencils (2B, 4B, 6B), Complete Art Student Drawing Kit with Easel and Professional Sketch Pens

$20.00

Zuohui Paper Palette: Tear-Off Mixing Paper, No-Wash Mixing Book, Disposable Palette for Watercolor, Acrylic, and Oil Painting, Peel-Off Mixing Board

$5.60

Red Fat Professional Watercolor Brush Set: Round Tip Liner Brushes, Nylon Brushes for Art Students; Black Swan Series Single Pack Available

$2.45

Comic Introduction Hand-Drawn Tracing Book Anime Character Line Art Drawing Children's Sketching Beautiful Girls Ancient Style Character Painting Basic Self-Study Tutorial Sketching Cartoon Album

$7.65

HITOTO Oil Pastel Set Super Soft Heavy Color 36 Colors 48 Colors Macaron Series Middle School Kindergarten Art Drawing Dedicated White Oil Chalk Soft Crayon Painting Paper Scraper Tool Complete Set

$18.58

Kraft Paper Notebook B5 Thickened for Junior High, Exam Prep, High School Homework, College, Large A4 Journal, 2026 New 16K/A5 Work Log, Lined Single-Line Exercise Book

$2.35

Art Portfolio Bag, Black Thickened Canvas Large Capacity Backpack for Art Exams and Sketching, Dedicated for Art Students, Portable Multi-Function Double-Shoulder Drawing Board Bag, 4K Art Bag

$23.49

The Tale of Outcasts: Hero Exploration Acrylic Standee, Haruka Katsuragi Acrylic Figure

$14.20

Home Picture Book Stand, Solid Wood Bookshelf, Storage Rack for Books and Toys, Floor-Standing Display Shelf

$1.00

Free Shipping 50 Pieces 4.2 Yuan 420 Fen Postal Postage Envelopes No Address No Zip Code Discounted Envelopes for Registered Mail Real Photos

$135.93

Pure Cotton Red Scarf for Elementary Students, Fade-resistant Universal Wrinkle-resistant Small Size for Grades 1-2, Thickened Large Size for Junior High, High-quality Full Cotton Young Pioneer Scarf for Children and Schools

$14.10

Shanjiu Thickened Plastic Snap Button File Bag Transparent A4 with Label Archive Stationery Bag Student Storage Custom Logo

$5.67

Chinese Painting Pigments 12 Colors Beginner Brush Elementary Student Children Introductory Materials Non-Toxic Gongbi Painting 24 Colors Ink Wash Painting Tool Set Chinese Art Supplies Toolbox Complete Landscape Painting Partition Box

$6.80

Postmark Card Album 120 Sheets High Capacity Postmark Card Train Ticket Star Card Album Card Sleeve Business Card Album Business Card Book

$4.99

33cm Kraft Cardboard with Colored Borders, Square with Circular Inner Cutout, Thickened Antique-Style Hard Cardboard for Children's Art and Drawing

$10.60

B5 Fun Dot Grid Pen Control Practice Copybook - Complete Preschool Workbook Set for Ages 3-6, Daily Training Sheets

$7.48

HD LCD Landscape Drawing Board for Children; Electronic Handwriting Doodle Pad, Small Blackboard for Early Education and Intelligence Development

$3.28

Dragon Ball Card Binder Nine-Grid Storage Album Large Capacity Pikachu Bag Cards Super Saiyan Card Sleeves

$34.70

Free Shipping CBB61 Start Capacitor 6UF 450V Single-Phase Motor Electric Fan Exhaust Fan Blower Range Hood Capacitor

$21.30

Zhongbai Paint Marker SP-110 Oil-Based Touch-Up Pen DIY Album Graffiti Pen White Marker Pen Touch-Up Pen

$2.33

Linen Oil Painting Board Ultra-Thin Beginner Painting Hand-Painted Oil Paint Acrylic Pure Cotton Canvas Art Material Lightweight Portable

$10.28

touchmark Antique-Style Raw Edge Paper for Calligraphy - Unlined Xuan Paper for Brush Writing Practice, Handmade Bamboo Pulp Yuanshu Paper, Thickened Semi-Sized Calligraphy Work Paper

$11.80

Duosuoduoxi Multifunctional 4K Art Portfolio Bag - Thickened Wear-Resistant Large Capacity Backpack for Art Exams, Sketching, Plein Air, and Art Storage

$66.50

Pride Leads to Loss, Humility Brings Benefit - Handwritten Calligraphy Wall Art Desktop Ornament Decorative Study Student Inspirational Learning Calligraphy

$8.40

Mao Taizi Reading Stand Kids Desktop Book Holder Multifunctional Student Reading Bracket Learning Artifact Book Clip Fixed Book Clamp Portable Desktop Book Stand

$9.90

Xiaohongshu Same Style Pink Bud Mint A7 Loose-Leaf Planner, Korean Ins Style High-Aesthetic Portable Diary Notebook

$5.02

Zhang Xiaofeng 'Peach Blossoms' Rose Quartz Brush Rest, Brush Holder, Brush Mountain, Brush Stand, High-Aesthetic Creative Calligraphy Accessory for Women, Jade Cultural Study Ornament, Small Gift

$35.70