Continuous Load Scratch Resistance Tester

The Continuous Load Scratch Resistance Tester is designed to evaluate surface scratch resistance and coating adhesion performance under continuously increasing load conditions. By applying controlled linear motion combined with progressive vertical loading, the instrument accurately identifies surface damage thresholds, making it suitable for assessing the durability and mechanical integrity of screens, films, wall coverings, and coated materials.

Application

Scratch resistance testing of mobile phone and tablet display screens

Scratch resistance evaluation of functional and decorative films

Scratch durability assessment of wallpapers and surface coverings

Adhesion strength testing of coatings under progressive load

Surface hardness and smoothness characterization

Typical test samples include:

Glass and coated display panels

Protective and decorative films

Wallpaper and laminated surfaces

Painted, varnished, or coated substrates

Standards

ISO DIS 12137-2 (Plastics — Determination of Scratch Properties)

JIS K 5600 (Testing Methods for Paints)

Parameters

Features

Multiple test functions integrated into a single system

Scratch resistance testing in accordance with ISO DIS 12137-2. with scratch size evaluated by microscopic observation

Pencil hardness–type testing based on JIS K 5600. using a 45° inclined pencil to compare surface hardness

Surface smoothness measurement by recording sliding resistance of a flat fixture to calculate static and dynamic friction

Optional friction and wear analysis software enables quantitative evaluation of scratch resistance based on measured resistance

Accurate determination of critical loads corresponding to surface indentation and cracking through resistance variation analysis

Accessories

(1) Conical scratch needle set with rounded tips (0.005–1.0 mm radius options)

(1) Continuous loading weight set

(1) Fixed load weight

(1) Flat sliding fixture

(1) Power cable

(1) Tool set

(1) Operating manual

Optional: friction and wear analysis software

Test Procedures

Secure the test specimen firmly on the moving stage.

Select and install the appropriate scratch needle or test fixture.

Choose the required continuous or fixed load range.

Set the sliding speed and travel distance.

Perform system checks and ensure overload protection is active.

Start the test to apply progressive load during linear motion.

Observe scratch formation and record resistance data for analysis.

Maintenance Information

Clean scratch needles and fixtures after each test

Regularly inspect the rack and pinion drive for smooth operation

Verify load weights and safety devices periodically

Keep the instrument free from dust and vibration

Store accessories properly to prevent mechanical damage

FAQ

1. What is the core advantage of this product?

Its continuous load mechanism allows precise identification of surface damage thresholds that fixed-load tests cannot reveal.

2. Are the test results reliable?

Yes. Stable mechanical transmission, overload protection, and direct resistance measurement ensure consistent and repeatable results.

3. Which international or industry standards does it comply with?

The tester supports ISO DIS 12137-2 and JIS K 5600 related scratch and surface performance evaluations.

4. Why is this product important?

It provides quantitative insight into scratch resistance and surface durability, supporting material selection and quality control.

5. Which fields is this product suitable for?

It is suitable for electronics manufacturing, film and coating development, decorative materials testing, and quality inspection laboratories.