Surface scratch hardness tester for plastics and metals
Whats/App: +86 156 1874 6768
Web: standard-groups.com
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 |
Features
Supports both continuous and fixed load scratch testing.
Sapphire stylus ensures long-term durability and consistent measurements.
ISO 12137-2 compliant for paints and varnishes.
Measures surface fracture strength by progressively increasing load during scratch tests.
Optional data analysis software (Tribosoft) allows precise quantification of scratch resistance and monitoring of load during scratching.
Capable of simulating pencil hardness testing under 750 g load at 45° inclination.
Surface friction (static and dynamic) can be recorded and analyzed for sliding behavior.
Wide applicability from thin films to hard membranes using variable radius stylus.
Accessories
(1) Fixed load weights: 0–50 g, 0–100 g, 0–200 g
(2) Sapphire conical stylus (R0.03 mm optional)
(3) Microscope or optical observation device (user-supplied)
(4) Optional Tribosoft data analysis software
Test Procedures
Sample Mounting
Secure the sample on the moving stage ensuring flat alignment.
Load Selection
Choose either fixed load or continuous loading mechanism.
Continuous loading allows stacking of weights for variable total load (e.g., 100 g fixed + 0–200 g continuous = 100–300 g total).
Scratch Test
Stylus moves along the sample for a 100 mm stroke at 600 mm/min (ISO 12137-2).
Observe scratch formation under a microscope or capture force data using Tribosoft software.
Data Evaluation
Determine scratch width, surface fracture load, and overall scratch resistance.
Compare results with standard references or previous measurements.
Optional Tests
Pencil hardness evaluation using 750 g load at 45° angle.
Sliding friction measurements for static and dynamic resistance.
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