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.

Product update

The Mechanised Scratch Tester (SH705) and the Manual Scratch Tester (SH706) have been updated to offer the weight set required by ISO 1518-1 (SH705/053/D). We continue  to offer the weight set specified by the preceding international standard, ISO 1518, as spares (SH705/050/D). 

Please contact us if you wish to purchase a replacement weight set to update your machine to ISO 1518-1.

Three motorised versions

SH705 Mechanised Scratch Tester - ISO 1518-1, 35 mm/s table speed, tungsten carbide hemispherical stylus, 20 N set of weights (2 x 0.5 N, 1 x 1.0 N, 2 x 2 N, 1 x 4 N and 1 x 10 N) and 1 spindle).

SH705/1 Mechanised Mar Resistance Tester - ASTM D5178: 6mm/s. displacement, Ø1.6 mm toroidal tool, set of weights 2kg (id. above) + 4x2 kg = 10 kg

SH705/2 Mechanised Scrape Adhesion Tester - ASTM D2197: 1-2” /s. displacement, Ø1.6 mm toroidal tool, set of weights 2 kg (id. above) + 4x2 kg = 10 kg

Manual Scratch Tester (SH706)One manual version

SH706 Manual Scratch Tester - ISO 1518-1, Complete with 2 Tungsten Carbide Needles and 20 N set of weights (2 x 0.5 N, 1 x 1.0 N, 2 x 2 N, 1 x 4 N and 1 x 10 N).

Downloads

Get a quotation

SKU Name Add to quote
SH705 Mechanised Scratch Tester - ISO 1518-1
SH705/050/D Weight set for ISO 1518 (superseded standard) (1 x 100 g, 2 x 200 g, 1 x 500 g and 1 x 1000 g)
SH705/053/D Weight set for ISO 1518-1 (2 x 0.5 N, 1 x 1.0 N, 2 x 2 N, 1 x 4 N and 1 x 10 N)
SH705/1 Mechanised Scratch Tester - ASTM D5178
SH705/2 Mechanised Scratch Tester - ASTM D2197
SH706 Hand Operated Scratch Tester - ISO 1518-1
SH706/032/S3 Tungsten Carbide Needle (Spare) for Scratch Tester

 

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