Scratch Hardness Tester
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Whats/App: +86 181 0160 0864
Web: gellowen.co.uk
The Scratch Hardness Tester is designed to quantitatively evaluate the scratch resistance and surface strength of coatings, films, and material samples. Using a conical stylus with a variable radius (R 0.005–1.0 mm), the tester applies either continuous or fixed loads to the sample while the stage moves. Scratches can be observed under a microscope or analyzed with optional software for precise quantification of surface durability. This instrument provides reliable, repeatable measurements for both laboratory research and quality control applications.
Application
Primary applications:
Quantitative assessment of scratch and surface hardness
Evaluation of coatings, thin films, pressure-sensitive membranes, and hard or soft layers
Determination of surface fracture strength and wear resistance
Laboratory research, material development, and quality control
Typical tested samples:
Paints and varnishes
Polymer coatings
Thin-film materials
Laboratory-prepared samples for hardness and durability testing
Standards
(1) JIS K 5600 series – Methods of testing paints
(2) ISO 12137-2:1997 – Paints and varnishes – Determination of resistance to surface scratch
Parameters
| Parameter | Specification |
|---|---|
| Scratch Stylus | Conical, R 0.005–1.0 mm (sapphire tip R0.03 mm optional) |
| Test Force Range | Fixed or continuous loading, 0–50 g / 0–100 g / 0–200 g selectable |
| Stroke Length | 100 mm |
| Scratch Speed | 600 mm/min (typical for ISO 12137-2 testing) |
| Sample Size | Flat panel samples, variable dimensions |
| Optional Software | Tribosoft for recording scratch resistance and force analysis |
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