Sheen Instruments - manufacturer and supplier of quality testing instruments for the paint and coatings industry

Sheen Instruments - quality testing instrumentation for paint and industrial coatings

Scratch Testers

Sheen Automated Scratch Tester (SH705)

This motorised apparatus is dedicated to coatings hardness evaluation based on scratching resistance method. A test panel is clamped and slowly moved whilst a stylus or alternative tool scratches the surface. Depending on test procedures, specified or variable loads can be applied to obtain different degrees of failure, from trace to destruction. A voltmeter indicates the contact of the tool with the metallic sample substrate. Max. panel size : 100x150x1.6mm (0.3mm coating). Alternatively a simple manually operated version is also available.

Features

  • Robust construction, reliable and reproducible results
  • Simple maintenance, easy to replace tools
  • 220-240V / 50Hz (110-120V / 60Hz on request, please specify)

Specifications allow for use of either the (preferred) mechanised or hand operated apparatus. A test panel is clamped to a slide which slowly withdraws the panel while a needle scratches the surface. Tests are conducted either on a ‘go/no go’ basis using a single specified load or by increasing the load to determine the minimum load at which the coating is penetrated.

3 motorised versions

SH705 Mechanised Scratch Tester - BS EN ISO 1518-1 2011 for scratch test, 3-4cm/s. displacement, tungsten carbide hemispherical stylus, 2kg set of weights (1x100g, 2x200g, 1x500g 1x1000g & 1 spindle).

SH705/1 Mechanised Mar Resistance Tester - ASTM D5178: 6mm/s. displacement, Ø1.6mm toroidal tool, set of weights 2kg (id. above) + 4x2kg = 10kg

SH705/2 Mechanised Scrape Adhesion Tester - ASTM D2197: 1-2” /s. displacement, Ø1.6mm toroidal tool, set of weights 2kg (id. above) + 4x2kg = 10kg

Manual Scratch Tester (SH706)1 manual version

SH706 Manual Scratch Tester - ISO 1518 / 3900 E2 (including weights/needles)

Downloads

Get a quotation

SKU Name Add to quote
SH705 Mechanised Scratch Tester
SH705/1 Mechanised Scratch Tester - ASTM D5178
SH705/2 Mechanised Scratch Tester - ASTM D2197
SH706 Hand Operated Scratch Tester
SH706/032/S3 Tungsten Carbide Needle (Spare) for Scratch Tester

 

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