Clemen Scratch Hardness Tester
Manufactured by Neurtek
The Clemen scratch tester machine relies on a controlled scratch method to evaluate the hardness of paints and coatings. It uses a 1mm spherical carbide indenter, enabling the device to determine the resistance of paints or coatings to surface damage under increasing loads.
Two models are available: the Clemen Manual Scratch Tester and the Clemen Automatic Scratch Tester.
The manual version provides manual movement of the indenter and a lod range of 0-2000g, while the motorised (automatic) version offers greater precision and repeatability through automatic lowering/lifting of the tool.
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Benefits
- Choice of mechanised or hand-operated apparatus (See specification for technical data of both versions).
- Suitable for quality control and lab analysis.
- Conducts tests on a “go/no-go” or load-increase basis.
- Complies with leading international standards, including ISO 1518-1:2019 and EN 13523-12.
How the Clemen Scratch Tester Works
A 1 mm tungsten carbide ball slides 60 mm over the sample surface. Based on the applied load, the coating shows varying degrees of damage — from surface marking to full failure.
Standards
ISO 1518-1:2019, EN 13523-12, JIS K 5600-5-5, and AS/NZS 1580.403.1
Note: BS 3900-E2, DIN 53799, and ECCA T12 are no longer active but still used in some industries.
Technical Data
Clemen Manual Scratch Tester
- Manual movement of the indenter.
- Load range: 0–2000 g.
- Scratch length: 60 mm.
- Sample width: 75 mm.
- Dimensions: 410 mm × 200 mm × 155 mm.
- Weight: 6 kg.
Included:
- Elcometer 3000 Manual device.
- 1 mm ball tool.
- Operating instructions.
Clemen Motorised Scratch Tester
- Automatic lowering/lifting of the tool.
- Built-in lamp and voltmeter signal when the substrate is reached.
- Load range: 0–5000 g.
- Sample dimensions: 75 × 150 mm.
- Sample thickness:
- Standard: 0.5–3 mm.
- Optional: 5–20 mm.
Operating environment:
- Temperature: 5–40°C.
- Humidity: Max 80% (at 31°C), decreasing linearly to 50% (at 40°C).
Device dimensions: 460 × 280 × 330 mm.
Weight: 20 kg.
Included:
- Motorised Clemen unit.
- 1 kg weight.
- 1 mm tungsten carbide ball tool.
- Power cable (UK, EU, US plugs).
- User manual.