Dalian Ada Ship & Marine Engineering Co., Ltd.
Which shipyard is good in Dalian? Ada Shipbuilding is the best!
Which shipyard is good in Dalian? Dalian Shipyard explains: For domestic solvent-free epoxy paints, mature products have not yet been found. This may be related to the gap between China's environmental protection requirements and those of developed countries. It is understood that solvent-free epoxy is used more in developed countries in Europe and America and Singapore, while it is relatively less used in other regions, even in shipbuilding countries such as Japan and South Korea. The reason is related to the environmental protection requirements of each country. Compared with ordinary epoxy paints, solvent-free epoxy has different requirements for construction technology and relatively strict construction conditions. Some improvements need to be made to the traditional shipbuilding coating technology to adapt to it. Basic characteristics of solvent-free epoxy coatings Solvent-free epoxy coatings have good resistance to corrosion, chemicals and solvents, and friction. It has strong adhesion to well-treated surfaces, and sandblasting to Sa2.5 grade has been proven to be a good method. Generally speaking, the higher the sandblasting standard, the stronger the protection of the coating system. The use of solvent-free epoxy can save costs and produce very considerable economic and environmental benefits.
First, the cost of paint maintenance over 4-5 years can be greatly saved. Second, compared with traditional anti-rust paint, solvent-free epoxy paint can still maintain a good surface appearance after a long period of use. Third, since the solid content of the paint is almost as high as 100%, the painting time can be saved relatively. Therefore, for shipbuilding construction, labor can be saved, thus saving expenses. For example, for a coating film thickness requirement of 400μm, at least 5 coatings are required for paints with low solid content to reach the specified film thickness, but for solvent-free epoxy, only 2 coatings of 200μm are required. Therefore, although the unit price of solvent-free epoxy paint is relatively high, the cost per m2 is relatively low. In addition, due to the unique difference between solvent-free epoxy paint and other products, no solvents or water are needed during curing or application. The coating formed by the combination of low-viscosity amine curing agent, liquid epoxy resin and pigment has extraordinary characteristics
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