{"id":25402,"date":"2020-03-19T19:20:42","date_gmt":"2020-03-19T18:20:42","guid":{"rendered":"https:\/\/www.samatools.it\/prodotto\/digital-cupping-testers-sact309-sact310\/"},"modified":"2026-09-10T11:42:39","modified_gmt":"2026-09-10T09:42:39","slug":"digital-cupping-testers-sact309-sact310","status":"publish","type":"product","link":"https:\/\/www.samatools.it\/en\/product\/digital-cupping-testers-sact309-sact310\/","title":{"rendered":"Digital cupping testers for paints and coatings – SACT309 \/ SACT310"},"content":{"rendered":"

The digital cupping testers for paints and coatings<\/strong> are instruments that are used to evaluate the behaviour of a coating applied to a metallic substrate when subjected to progressive deformation. The cupping test<\/strong> identifies the point at which the coating starts to show cracks, fractures or detachment.\u00a0 It provides valuable information for assessing the resistance of the applied film during sheet-metal deformation.<\/p>\n

The cupping test<\/strong> principle involves clamping the coated sample in the instrument and progressively deforming it using a punch. During advancement, the surface is observed until a defect appears; the depth reached at that point represents the test result and makes it possible to compare the behaviour of paints, enamels and coatings subjected to the same inspection.<\/p>\n

This test is particularly important when a painted metallic substrate must subsequently be formed, stamped or deformed. Although a coating may appear uniform after application, it can develop cracks or lose adhesion when the sheet undergoes the intended processing. The cupping tester therefore makes it possible to verify whether the applied film can accomodate substrate deformation while maintaining its continuity.<\/p>\n

Digital cupping testers are suitable for testing paints, enamels and protective coatings applied to metallic specimens compatible with the test method. They can be used during coating-system development, production quality control and comparative evaluations of different formulations, surface treatments or application conditions.<\/p>\n

Two models are available: the manual digital cupping tester SACT309<\/strong> and the automatic digital cupping tester SACT310<\/strong>. Both identify the depth at which a defect appears in the coating, but they differ in test execution and surface-observation method.<\/p>\n

The SACT309<\/strong> is a manual model designed for applications where the operator needs to control the punch advancement directly during the inspection. An illuminated magnifier assists with specimen observation, making it easier to detect cracks or detachment as deformation progresses. The depth reached when the first defect appears is shown on the digital display.<\/p>\n

This configuration is a practical solution for individual tests, laboratory activities and inspections where the operator follows coating behaviour directly during cupping. The digital reading makes it possible to associate observation of the defect with the value measured on the sample.<\/p>\n

The SACT310<\/strong> is an automatic model designed to perform the test using controlled movement at a defined speed. This minimises the influence of the operator during deformation and promotes greater test repeatability, particularly when a large number of specimens need to be evaluated or different coating systems are being compared.<\/p>\n

On the automatic model, the digital camera<\/strong> displays the tested surface directly on the screen, facilitating identification of the first defect as the punch advances. This configuration is particularly useful for repeated tests, laboratory activities and quality procedures where more uniform inspection conditions are required.<\/p>\n

The choice between SACT309 and SACT310 depends primarily on test frequency and the desired degree of process control. The manual model is suitable when the operator needs to monitor the test directly and the number of measurements is relatively limited; the automatic model is better suited to applications involving numerous tests, comparison of multiple specimens or the need to minimise variability associated with manual control of deformation.<\/p>\n

The digital cupping testers SACT309 and SACT310<\/strong> are designed for testing in accordance with ISO 1520<\/strong>, the reference standard for evaluating the resistance of paints, varnishes and coatings to cracking or detachment from the substrate during progressive cupping deformation.<\/p>\n

Cupping tests on coatings are used to inspect painted panels, coated sheet metal intended for forming processes, metallic components that will undergo subsequent deformation and specimens prepared to compare the performance of different coating systems. Identifying the point at which the film begins to fail provides a practical indication of its suitability for the intended manufacturing process.<\/p>\n

Therefore, digital cupping testers for paints and coatings<\/strong> make it possible to check coating resistance to deformation on metallic substrates, with a choice between manual execution with assisted observation and automatic testing with controlled movement and digital-camera viewing.<\/p>\n

Applications<\/h3>\n
    \n
  • Cupping tests on paints and coatings applied to metallic substrates<\/li>\n
  • Assessment of cracks, fractures or detachment during deformation<\/li>\n
  • Inspection of painted panels and coated sheet metal used for forming operations<\/li>\n
  • Verification of enamels, protective coatings and paint systems applied to metal<\/li>\n
  • Comparison of different coatings or application conditions<\/li>\n
  • Quality-control checks on coated metallic samples<\/li>\n
  • Manual tests with direct observation of the coating<\/li>\n
  • Automatic tests with controlled movement for series of samples<\/li>\n
  • Testing in accordance with ISO 1520<\/li>\n<\/ul>\n

    FAQ – Digital cupping testers for paints and coatings<\/h2>\n

    What is a digital cupping tester for coatings used for?<\/strong>
    \nIt is used to assess the behaviour of paint or a coating that is applied to a metallic substrate during progressive deformation. The test identifies the depth at which cracks, fractures or coating detachment appear.<\/p>\n

    How does a cupping test on paint work?<\/strong>
    \nThe coated sample is clamped in the instrument and progressively deformed using a punch. During the test, the surface is observed until a defect appears and the corresponding cupping depth is recorded.<\/p>\n

    What does the test result indicate?<\/strong>
    \nThe result indicates the depth at which the coating starts to show a defect during substrate deformation. This value makes it possible to compare the resistance to deformation of different paints or coating systems.<\/p>\n

    Why perform a cupping test on painted sheet metal?<\/strong>
    \nThe test is useful where coated sheet metal will subsequently be formed, stamped or deformed. It verifies whether the paint maintains its integrity or develops cracks and detachment during processing.<\/p>\n

    What is the difference between SACT309 and SACT310?<\/strong>
    \nSACT309 is a manual model that allows the operator to control the test directly and observe the coating through an illuminated magnifier. SACT310 is automatic, performs deformation with a controlled movement and uses a digital camera to display the surface during testing.<\/p>\n

    When should the manual SACT309 cupping tester be selected?<\/strong>
    \nSACT309 is suitable for individual tests or activities where the operator wants to control advancement directly and visually follow coating behaviour during deformation.<\/p>\n

    When should the automatic SACT310 cupping tester be selected?<\/strong>
    \nSACT310 is preferable where tests are numerous, several samples must be compared or operator influence must be reduced to improve operational repeatability.<\/p>\n

    What is the advantage of the digital camera on the automatic model?<\/strong>
    \nThe camera allows the coated surface to be observed on screen during deformation, making it easier to identify the appearance of cracks or detachment during the test.<\/p>\n

    Which materials can be tested?<\/strong>
    \nThe test is performed on paints and coatings applied to metallic substrates compatible with the selected method and instrument configuration.<\/p>\n

    Which standard applies to the cupping test?<\/strong>
    \nDigital cupping testers SACT309 and SACT310 are used for testing in accordance with ISO 1520, relating to the assessment of the resistance of paints, varnishes and coatings to cracking or detachment during progressive cupping deformation.<\/p>\n","protected":false},"excerpt":{"rendered":"


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