LR-G042  Automatic Scratch Tester

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LR-G042  Automatic Scratch Tester


Coatings and paints can protect,decorate substrate or conceal the defects of substrate, and these three functions are related with coatings hardness. And hardness is the important performance for paint mechanical strength, as well as the important indicator to judge paint quality. One of important indicators to evaluate coatings hardness is scratch resistance.
ISO 1518 《Paints and varnishes — Determination of scratch resistance》specifies a test method for determining under defined conditions the resistance of a single coating or a multi-coat system of paint, varnish or related product to penetration by scratching with a scratch stylus loaded witha specified load. Penetration of the stylus is to the substrate, except in the case of a multi-coat system, in which case the stylus can penetrate either to the substrate or to an inter mediate coat.

LR-G042  Automatic Scratch Tester

Main Technical Parameters: 

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Technical Parameter ↓

Conform standards ISO 1518-1

BS 3900:E2

ISO 1518-2
Stylus 1.Having a hemispherical hard-metal tip of radius 0.25mm or 0.5mm

2.Having a hemispherical synthetic-ruby of radius 0.25mm or 0.5mm

Coned sapphire or diamond, the tip radius is 0.03mm
Angle between stylus and sample 90° 90°
Weight Constant-loading

(0g~50g or 0g~100g or 0g~200g)

Motor 60W  220V  50HZ
Sytlus Moving Speed (35±5)mm/s (10±2) mm/s
Working Distance 120mm 100mm
Max. Panel Size 200mm×100mm
Max. Panle Thickness Less than 1mm Less than 12mm
Overall Size 500×260×380mm 500×260×340mm
Net Weight 17 KG 17.5KG