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Adhesion Tester ST30 and ST200

Adhesion Tester ST30 and ST200

Adhesion Tester Features

  • Robust, durable measurement technology for the analysis of the adhesive and cohesive strength according to ISO 20502, DIN EN 1071-3 and ASTM C1624-05
  • Fully automatic single and serial measurements
  • Various measuring modes with options for constant, progressive or incremental load
  • Motion feed-back control for measurements on curved surfaces
  • Measuring force range 0.01 โ€“ 30 N (ST30) and 0.5 โ€“ 200 N (ST200)
  • Determination of zero point directly at the measuring spot
  • High-resolution microscope with 5x and 20x lenses; additional lenses available
  • Various optical filters ensure optimum sample analysis and scratch detection
  • Additional analysis methods: friction force measurement, friction coefficient determination, noise emission measurement, measurement of the remaining scratch depth
  • The device can be connected to any computer and is easy to use via the intuitive, in-house developed WinSCU software
  • Software additionally combines tangential force, indentation depth and acoustic emissions (scratch noise) in one evaluation
  • Easy to generate test reports and to export data
  • Configuration of sensors possible thanks to modular design of scratch test systems
  • Large sample chamber with high traversable Z-axis for measurements of samples with up to 10 cm in height without sample preparation
  • Standard issue with a Rockwell indenter (radius 200 ยตm; also available with 50 ฮผm and 100 ฮผm); other indenters available on request

Adhesion Tester Applications


  • Varnish layers
  • Automotive coatings, soft coatings / layers
  • Decorative anodized coatings
  • Hard gold coated plug contacts
  • Sol-gel coatings (dirt-repellent)
  • Wafers (thin layers up to more than 1 ฮผm)
  • Polymer coatings (e.g. coatings on cables)
  • Solid plastics, furniture industry


  • Hard coatings
  • Measure scratch hardness
  • Scratch in cross-section of thick layers over 50 ฮผm, adhesion strength
  • Cutting tools
  • Engine components
  • Dental prostheses
  • Artificial joints

Adhesion testers for paints and hard material coatings

Whether the functional coating on a drill bit lasts a long time or a car paint can withstand harsh weather โ€“ it all depends on how well the coating adheres to its substrate. Scratch and adhesive tests simulate in the lab the kinds of loads that a surface will normally be exposed to in everyday life.

The FISCHERSCOPEยฎ-ST series is a modular scratch adhesion test system that offers two models to cover different measurement ranges. The ST30 scratches with low force and is ideal for testing soft materials such as paints or polymers, as well as for thin layers as used in the semiconductor industry. For hard coatings, the ST200 uses higher forces.

The resulting scratch is primarily evaluated optically. For this purpose, the FISCHERSCOPE ST has a high-resolution microscope that can be equipped with up to three lenses, as needed. In addition to the optical analysis, it can also measure the acoustic emissions, the tangential force, and the penetration depth.


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