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China Coatings Network
: The quality of products is the life of enterprises, good ship construction quality is to ensure the safe navigation and operation of ships an important condition. Sea navigation, erosion of the sea, sun exposure, all require a good ship
paint
support.
(1) Re-coatable polyurethane hull paint re-painting test results show that the damage site is mostly re-coated paint film damage, indicating that the site is
coating
re-painting problems should be of particular concern. The test also shows that: re-coatable polyurethane paint after thermal acceleration curing, 6 months, 12 months of atmospheric exposure, 200h, 500h, 1000h ultraviolet aging, paint film attachment strength has not been significantly reduced, but also with the paint over the years the actual application results consistent, the re-coating test method proposed in this paper is credible.
(2) Ship liquid tank paint re-painting test, whether is ISO standard or ASTM, MIL-PRF-23236C standard, are more mature methods, and are evaluated according to not less than 50% of the original attachment strength. The author believes that cabin paint is best combined with the most demanding conditions in the actual use process to simulate aging, so that the indoor acceleration test results can be consistent with the expected effect of the actual use process.
(3) With the continuous progress of science and technology and testing methods, testing methods are also constantly improving. The recoding test method is a new test method with the progress of paint technology. Using the test method combining natural state and indoor acceleration state can not only observe the difference between the two, but also verify the compound coating performance of the coating at the same time, which is of some reference significance to the domestic detection re-painting. There is a wide variety of special paints for ships, which will continue to evolve in the future. Paint can be constructed at lower temperatures with strong adhesion. Widely used in ships, bridges, steel structures and wet tropical or chemical environmental instruments, equipment protection paint, is a good protective paint.
