Characterization and performance tests for anticorrosive organic coatings (paints and varnishes)
Compartilhe:
Paint characterization and performance tests, both in liquid and dry film forms, are important tools for quality control in industrial painting, as well as for the selection and development of new paint compositions and schemes.
Corrosion and Protection Laboratory\’s facilities
The Laboratory for Corrosion and Protection of IPT performs testing and analysis on paints in order to characterize them and verify their performance against corrosion in aggressive environments. In addition to a wide range of standard tests, the laboratory also develops tests according to customer needs, based on its own specifications or on national and international Standards.
Among the tests developed in the Laboratory, it is worth emphasizing the test and equipment developed for Petrobras to evaluate both the resistance to fatigue and to corrosion of organic coatings in aggressive environments. This test is intended to evaluate coatings of tankers, used for transportation of oil, subjected to stress resulting from movement of the liquid, high temperature and CO2.
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Among the most common tests in liquid paints and dry films can be cited:
Dry-film tests
Adhesion by Pull-off Test
Adhesion by Tape Test
Cathodic Disbonding
Color Differences of Diffusely-Illuminated Opaque Materials
Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
Cyclic Accelerated Corrosion Test
Hardness by Pencil Test
Hardness by Pendulum Damping test.
Flexibility Test: Conical or Cylindrical Mandrel Flexibility Determination
Holiday detector
Household Chemical resistance on Clear and Pigmented Organic Finishes.
Humidity Test (100 %)
Impact – Resistance of Organic Coatings to the Effect of Rapid Deformation (Impact)
