Skip to main content
Home / Flat Brushes / German Corona Test Pens - Dyne Pens for Surface Tension & Oil Contamination Testing (Shilong Brand)

Attributes

Brand -
Category Stationery, Educational Electronics & Office Supplies / Flat Brushes
Origin -
Brand Shilong
Origin Germany
Product Type Dyne Test Pen
Application Surface Tension Testing
Target Contaminants Oil and Grease
Tip Material Felt Fiber
Ink Volume 10 ml
Shelf Life 12 Months
Storage Temperature 5°C to 25°C
Package Contents 1 Test Pen, User Manual

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 5/5

Standard in our facility

We have standardized on Shilong Dyne pens across all our manufacturing units. They provide consistent readings every time without fail.

A

Anonymous

Mar 27, 2026

Rating: 4/5

Good quality, fast drying

Works well for detecting oil contamination. The ink dries quickly which is great for production speed, though you need to be precise with application.

A

Anonymous

Mar 23, 2026

Rating: 5/5

Reliable German engineering

We switched to these from a cheaper alternative and the difference in consistency is night and day. Highly recommended for quality control labs.

A

Anonymous

Mar 22, 2026

Rating: 3/5

Good but pricey

The performance is excellent and very accurate, but the price point is higher than other brands. You get what you pay for in terms of reliability though.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Essential for our printing line

These pens are incredibly accurate for checking surface tension on our plastic films before printing. The Shilong brand consistently delivers reliable results.

A

Anonymous

Mar 04, 2026

Rating: 5/5

Perfect for adhesion testing

Using these to ensure proper adhesion for coating processes. The dyne levels are clearly marked and the pen feels sturdy in hand.

5 FAQ

Q: How long does the ink last once the pen is opened?

A: Once opened, the ink typically remains effective for about 6 months if the cap is sealed tightly after each use and stored correctly.

Q: What range of dyne levels does this specific pen cover?

A: This specific model is calibrated for a single dyne level as indicated on the label. We offer sets covering 30 to 72 dynes/cm if you need a full range.

Q: Is there a certificate of analysis included with the pen?

A: Yes, each batch comes with a digital certificate of analysis available via QR code on the packaging or downloadable from our website.

Q: What should I do if the ink spreads immediately?

A: If the ink spreads immediately, it indicates the surface tension of the material is higher than the dyne level of the pen. You should test with a higher dyne level pen.

Q: Can these pens be used on metal surfaces?

A: Yes, they are suitable for testing surface tension on various substrates including treated metals, plastics, and foils.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
New Pirelli Tire 255/40R20 101W AO PZERO PZ4 with Silent Cotton Original Fit for Audi A6L

New Pirelli Tire 255/40R20 101W AO PZERO PZ4 with Silent Cotton Original Fit for Audi A6L

$1,358.00

Oriental Pearl Dual Porcelain Jar Gift Set: Green Tea, Black Tea, Jin Jun Mei, Pu'erh Loose Leaf Tea in Porcelain Jars

Oriental Pearl Dual Porcelain Jar Gift Set: Green Tea, Black Tea, Jin Jun Mei, Pu'erh Loose Leaf Tea in Porcelain Jars

$149.00

Purified Water Bucket Stand Inverted Water Dispenser Pump Simple Mineral Water Drinking Machine Press Pump

Purified Water Bucket Stand Inverted Water Dispenser Pump Simple Mineral Water Drinking Machine Press Pump

$10.80

New Children's Gouache Paint Brushes DIY Hand-Painted Graffiti Art Class Watercolor Acrylic Paint Brushes Bristle Round Tip Brush

New Children's Gouache Paint Brushes DIY Hand-Painted Graffiti Art Class Watercolor Acrylic Paint Brushes Bristle Round Tip Brush

$6.41

Natural Clear Quartz Fully Clean Untreated Faceted Round Rice Beads - For Women's Bracelets, Spacer Beads, and DIY Crafts

Natural Clear Quartz Fully Clean Untreated Faceted Round Rice Beads - For Women's Bracelets, Spacer Beads, and DIY Crafts

$6.63

Sponge Brushes for Kids' Crafts and Creative Painting - Student Art Stamping Tools, DIY Sponge Paintbrushes

Sponge Brushes for Kids' Crafts and Creative Painting - Student Art Stamping Tools, DIY Sponge Paintbrushes

$13.86

Jiuchenggong Liquan Ming Tang Dynasty Ouyang Xun Yao Mengqi Copybook, Regular Script Brush Calligraphy Workbook, 3 Volumes, 188 Pages

Jiuchenggong Liquan Ming Tang Dynasty Ouyang Xun Yao Mengqi Copybook, Regular Script Brush Calligraphy Workbook, 3 Volumes, 188 Pages

$17.90

Shaped Watercolor Paper Ticket Stubs - Blank Postage Stamp Bookmarks with Serrated Edges, Thickened 300g Premium Cotton Pulp, Fine Texture for Art Hand Painting, Easy Blending, High Absorbency, Wrinkle-Resistant - Perfect for Postcards and Creative Cards

Shaped Watercolor Paper Ticket Stubs - Blank Postage Stamp Bookmarks with Serrated Edges, Thickened 300g Premium Cotton Pulp, Fine Texture for Art Hand Painting, Easy Blending, High Absorbency, Wrinkle-Resistant - Perfect for Postcards and Creative Cards

$9.85

Naitong Automatic Retractable Air Hose Reel with PU Braided Hose for Pneumatic Tools and Car Detailing

Naitong Automatic Retractable Air Hose Reel with PU Braided Hose for Pneumatic Tools and Car Detailing

$119.00

Premium Wall-Mounted Aromatherapy Empty Bottle – 100ML Plastic Square Diffuser Bottle with Wall-Mount Adhesive Sticker

Premium Wall-Mounted Aromatherapy Empty Bottle – 100ML Plastic Square Diffuser Bottle with Wall-Mount Adhesive Sticker

$2.98

Leyingfang Floating Pen for Kids' Water Drawing, Colorful Water-Soluble Suspended Markers, Erasable Watercolor Pens

Leyingfang Floating Pen for Kids' Water Drawing, Colorful Water-Soluble Suspended Markers, Erasable Watercolor Pens

$13.80

Loose Rose Quartz Beads, Donghai Agate, Chalcedony, Jadeite, and Madagascar Pink Crystal for DIY Jewelry Making

Loose Rose Quartz Beads, Donghai Agate, Chalcedony, Jadeite, and Madagascar Pink Crystal for DIY Jewelry Making

$6.72

Expandable Stainless Steel Sink Rack, Multi-Function Kitchen Drain Board for Fruits, Vegetables, and Utensils

Expandable Stainless Steel Sink Rack, Multi-Function Kitchen Drain Board for Fruits, Vegetables, and Utensils

$14.90

Transparent Retainer Case Aligner Storage Box Portable Carry-On Squeeze Bag Orthodontic Appliance Rubber Band Cleaning Box

Transparent Retainer Case Aligner Storage Box Portable Carry-On Squeeze Bag Orthodontic Appliance Rubber Band Cleaning Box

$18.50

Transparent Data Cable Organizer Bag for Travel - Portable Multi-Use Visible Storage for Digital Chargers and Cable Management

Transparent Data Cable Organizer Bag for Travel - Portable Multi-Use Visible Storage for Digital Chargers and Cable Management

$7.36

Finished Seal Calligraphy Finished Stone Stamp Sellos Chines

Finished Seal Calligraphy Finished Stone Stamp Sellos Chines

$108.58

Chunfei Grocery Store Commuter Hard Fork Low-Beam Mountain Bike for Urban Roads, Suburbs, School, and Outings

Chunfei Grocery Store Commuter Hard Fork Low-Beam Mountain Bike for Urban Roads, Suburbs, School, and Outings

$2,247.00

6-Cavity Large Square French Flower DIY Soap Silicone Mold for Essential Oil and Milk Soap

6-Cavity Large Square French Flower DIY Soap Silicone Mold for Essential Oil and Milk Soap

$4.93

Home Balcony Vegetable Planter - Self-Watering Plastic Pot for Strawberries and Succulents

Home Balcony Vegetable Planter - Self-Watering Plastic Pot for Strawberries and Succulents

$28.00

Pressure Swing Adsorption Nitrogen Generator - High-Purity Nitrogen Device for Heat Treatment

Pressure Swing Adsorption Nitrogen Generator - High-Purity Nitrogen Device for Heat Treatment

$36,456.00

6-Cavity 3D Rose Silicone Mold for DIY Soap Making Heat-Resistant Non-Stick Large Size for Milk Soap and Essential Oil Soap

6-Cavity 3D Rose Silicone Mold for DIY Soap Making Heat-Resistant Non-Stick Large Size for Milk Soap and Essential Oil Soap

$5.80

Traditional Handmade Baby Teething Rattle Sheepskin Wooden Clapper Newborn Toy Intangible Cultural Heritage

Traditional Handmade Baby Teething Rattle Sheepskin Wooden Clapper Newborn Toy Intangible Cultural Heritage

$29.85

Manufacturer Supply ZSJC02 Film Splicing Table, Alignment Table, Film Inspection Table

Manufacturer Supply ZSJC02 Film Splicing Table, Alignment Table, Film Inspection Table

$4,484.00

Box-Type Oxygen Generator Export Equipment - Stable Nitrogen and Oxygen Production for Wastewater Treatment

Box-Type Oxygen Generator Export Equipment - Stable Nitrogen and Oxygen Production for Wastewater Treatment

$25,000.00

Wholesale Acrylic Paint Stick Set, 3ml x 12 Colors, Non-Toxic for Children's DIY and Street Art

Wholesale Acrylic Paint Stick Set, 3ml x 12 Colors, Non-Toxic for Children's DIY and Street Art

$2.01

Cheese Processing Equipment - Small Pasteurized Fresh Milk Production Line, Fully Automatic Cheese Making Machine

Cheese Processing Equipment - Small Pasteurized Fresh Milk Production Line, Fully Automatic Cheese Making Machine

$66,500.00

Household Mini Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot & BBQ Odor Removal

Household Mini Range Hood, Portable USB Desktop Smoke Extractor for Living Room Hot Pot & BBQ Odor Removal

$41.00

Sanitary Grade Stainless Steel Low-Temperature Vacuum Single-Effect Falling Film Evaporator for Milk Powder and Juice Processing

Sanitary Grade Stainless Steel Low-Temperature Vacuum Single-Effect Falling Film Evaporator for Milk Powder and Juice Processing

$4,158.00

Chain Shortener & Lifting Rigging - Double Chain Hook Assembly for Overhead Cranes and Hoists

Chain Shortener & Lifting Rigging - Double Chain Hook Assembly for Overhead Cranes and Hoists

$130.00

Youlian Toast Shaping Machine Dough Molder Square Bread Shaper Bakery Equipment YSN-T380

Youlian Toast Shaping Machine Dough Molder Square Bread Shaper Bakery Equipment YSN-T380

$9,695.20