Industry Analysis: Marine heavy anti-corrosion coatings and coating system status and development trends

The development of marine heavy anti-corrosion coating is to serve the overall strategy of the development of the national marine industry, and it is also an essential part of China's development from the offshore sea to the deep sea to become a big ocean country.
the past five years, the coatings industry has been negatively affected, despite the impact of the global financial crisis and economic downturn on the shipbuilding, container and marine industries. However, the "12th Five-Year Plan" coastal provinces from Liaoning, Shandong, Jiangsu to Zhejiang, Fujian and Guangdong, Guangxi have issued an ambitious plan to develop the marine economy, covering marine transport including shipbuilding, containers, port terminals and other infrastructure, marine fishing and marine aquaculture industry, marine resources development, oil and gas exploration from offshore to deep sea, coastal and offshore wind power development to reach 7 by 2020 0 GW, coastal transportation infrastructure construction in addition to the Construction of the Hong Kong-Zhuhai-Macao Cross-Sea Bridge, Quanzhou Bay Bridge, will also build several cross-sea bridges, such as Yantai Brigade, Haiyang, coastal petrochemical plants, seawater cooling power plants, nuclear power plants, marine engineering-related drilling rigs, pipelines, storage equipment, engineering vessels and supporting facilities, such as
China
. The ocean is the largest and harshest corrosive environment, and the corrosion environment from the Northern Bohai Sea to the South China Sea is very different, all related equipment steel structures and concrete must be protected by anti-corrosion coatings and coating systems.
The core value of the quality of marine corrosion-resistant coatings, namely reliability, is determined not only by the quality assurance system of coating products, but also by the development of coating support systems, coating processes and site management, coating standards and testing methods, including coating durability acceleration evaluation methods, fast and reliable on-site coating quality control inspection methods.
Therefore, the development trend of marine anti-corrosion coating must be integrated from coating, for equipment and facilities in different corrosion environment and coating environment to do the overall anti-corrosion coating design, to meet the different users of coating reliability and durability requirements, as well as to meet the coating and coating process energy conservation and emission reduction, safety and environmental protection (including coating environment and marine ecological environment), improve coating efficiency, reduce costs and other needs. According to the requirements of different industries to develop the corresponding products, supporting system development direction and coating process and standards, that is, to provide a complete solution to anti-corrosion programs. The following is a separate description of the different areas of the marine industry.
1 The current situation and development of marine coatings and coating systems

1.1 Ocean and offshore marine coatings market and development
After nearly 10 years of rapid development of the shipbuilding industry, China now over South Korea, Japan has become the world's largest shipbuilding country. Table 1 shows the state of the world shipbuilding industry as at 30 June 2013.
new shipbuilding and hand-held orders have fallen in the past two to three years, d'a half a year after the weak recovery in the world economy and weak world trade, although orders grew in the first half of 2013 but narrowed. In addition, shipbuilding prices continue to fall, 2013 may bottom out rebound, China's shipbuilding industry serious overcapacity, up to more than 3000 shipyards, experts predict that by the end of the "12th Five-Year Plan" through mergers and reorganization, optimize the industrial structure, shipyards can be reduced to more than 1000. At the same time, compared with the Korean shipbuilding industry, although China's hand-held order volume is relatively large but mainly in the middle and low-end bulk cargo ships, and South Korea in the high-end LNG, large container ships and marine engineering vessels have an advantage, so its total value exceeds China."
first half of 2013, the Ministry of Information Industry has promulgated three years of shipbuilding industry restructuring and upgrading planning and requirements, which also put forward higher requirements for the development of marine coatings and coatings systems. Affected by the decline and uncertainty of the shipbuilding industry, China's marine coatings market has been greatly affected, its sales volume in 2011 was 500,000 t, in 2012 fell sharply to 380,000 t, 2013 may pick up slightly but the outlook is uncertain.
, 12 shipyards accounted for 26.9%, CSIC 8 shipyards accounted for 13.3%, 6 joint-venture shipyards 2.9%, 6 foreign shipyards 8.0% in good condition, the other 112 shipyards accounted for 48.9%, its condition is generally poor, many face bankruptcy.
many challenges to the development of marine coatings in China. The first is the new regulations/new standard requirements that are constantly introduced around the world, such as:
-IMO PSPC ballast tank coating performance standard WST
(revised version);
-IMO BWMS ballast water treatment and ballast coating problems;
-IMO Biofouling sea bio-exotic migration;
-EEDI new ship energy efficiency design index and EEEI ship energy efficiency operation index, closely related to anti-fouling coatings.
Ministry of Environmental Protection, China's class society also followed up accordingly: the use of anti-fouling paint containing machine tin / DDT bottom, published "double-height" product catalog including lead, chromium pigment anti-corrosion paint. Among them, the restriction of the use of anti-fouling coatings containing copper oxide is somewhat ahead of time, in the absence of a mature and reliable non-copper anti-fouling solution, copper oxide will be applied at least 15 to 20 a.
from the point of view of product development and innovation, the first is still environmentally and ecologically friendly long-lasting
5 a or more underbody anti-fouling coatings. Among them are: international paint silicone elastomer low surface anti-fouling coating, Haihong old man copper oxide nanomaterial modified slow-release Wuxi SPC, and Jotun acrylic silicone SPC. Anti-corrosion coatings product line to high solid content (volume fraction) > 60%, solvent-free epoxy and PU-based. Due to the high requirements for substrate treatment and construction environment, coating reliability is difficult to ensure, so the application of water-based anti-corrosion coatings is limited. From the point of view of improving efficiency and ensuring quality requirements, fast-drying low-surface treatment with universal anti-corrosion primer development is rapid, even accounting for 30% of the sales of some companies.
1.2 Fishing boat paint market and product development
According to the Ministry of Agriculture statistics, China currently has less than 500 horsepower fishing vessels about 300,000, is developing more than 3000 t of ocean fishing vessels. There is a serious overcapacity in small boats, which affects the sustainable development of the offshore fishing industry, and in addition to the annual fishing ban, it is imperative to reduce the number of fishing vessels to 200,000 in the future.
total amount of china's fishing vessel paint is about 30,000 t/a, the use of validity of small boats for 1 to 1.5 a, ocean-going vessels for 3 to 5 a and ocean-going vessel requirements are similar. Fishing boat paint is regulated by the Fisheries Administration of the Ministry of Agriculture. This is extremely competitive, high performance / price ratio requirements of the market, multinational companies did not enter, by the coastal small and medium-sized paint enterprises such as Shanghai Kailin, Zhejiang Fish Children, Flyer, Pearl and other
dozens of companies occupied.
January 2006, the Ministry of Environmental Protection has banned the use of persistent organic pollutants in order to comply with the Stockholm International Convention. The first was the establishment of a compliance office to prohibit the use of anti-fouling coatings containing DDT and to secure funding of more than $20 million from the United Nations. Developing cost-effective anti-fouling coatings for fishing vessels without DDT is a difficult task, and the project has not achieved satisfactory results for more than 7 years.
1.3 ship paint
the next decade is a golden period for the development of ship and ship paint. The large-scale and high-performance of ships require new vitality in the development and innovation of ship coatings. Large tonnage missile destroyers, frigates, cruisers, amphibious landing ships, supply ships of more than
20,000 t, until surface ships such as aircraft carrier battle groups, as well as advanced stealth conventional power and nuclear submarines, have developed in recent years.
Ship coating is the largest use of special coating materials for the military industry, the largest variety of fields, it includes new ships and maintenance of two major product line, in 2002 China has formulated the ship paint overall supporting system standards and coating standards, and constantly revised. In terms of usage, the coating for maintenance is much larger than for new shipbuilding, but the latter requires more high-performance new products. The market capacity of ship coatings is about 6000 to 8000 t/a, and it is on the rise.
ship coatings with high performance, special functions and high reliability as the main features. Due to the short duration and fast cruising speed of military vessels
(30 nautical miles/h), anti-fouling coatings for civilian vessels are not applicable. It is a very difficult task to develop an environmentally friendly anti-fouling coating system for aircraft carriers with an expiration date greater than 8 a, optimize the coating performance of fighter aircraft decks, develop a corrosion-proof and stealth coating system for aircraft carriers, and narrow the gap with the U.S. military as soon as possible. It should be acknowledged that we still have a gap with advanced countries in advanced weapons, and we still need to work hard.
1.4 Yacht paint
yacht paint for decoration and protection performance requirements are very high. Since yachts dock in the harbor most of the time, environmental and safety requirements for anti-fouling coatings on the bottom of the vessel are higher. Northern Europe and Canada and the United States are preparing legislation to limit the initial oozing rate of copper oxide (<40 to 50 μg/cm2/d). At present, international paint and Jotun and other multinational companies have a product range supply market, domestic enterprises have not yet been involved in this market.
2 Container Coatings Market Analysis
2.1 Trends in the Container Industry
The container and coatings coating industry is a highly intensive, highly mechanized and automated manufacturing industry. The world economic and trade situation is closely related to the development of its industry. Despite the impact of the 2008 financial crisis and recession on the shipping industry, container production reached an all-time high in 2011 and reached 2.46 million TEU in 2012 despite a decline. In January-September 2013, 1.83 million cases were completed, and 2.4 million cases could still be completed for the whole year without incident. Despite the uncertainties, the industry remained stable at 2.2 million to 2.5 million cases/a as the world economy gradually recovered.
2.2 Container coatings market analysis
2012 China's total container coating production and sales of 240,000 t. Market share continued the previous trend, that is, COSCO Kansi and Zhong tu chemical two accounted for 55%, Haihong old man, King Kong chemical and non-mainstream paint suppliers accounted for 45%, but unlike in previous years, these two figures behind the polarization of the situation. In the first group, COSCO Kansi's market share increased by about 3%, reaching more than 32%, while in the second group, Haihong old people's market share further shrank, the decline was obtained by King Kong Chemical, non-mainstream suppliers still stable at about 17% of the share, is a force to be reckoned with. Figure 1 shows the market share of paint companies in 2012.
the market share of container coatings remained basically unchanged from January to September 2013, with COSCO Kansi accounting for 31.76 percent, China Coating Chemical accounting for 27.11 percent, Haihong Elderly accounting for 11.89 percent, King Kong Chemical accounting for 16.52 percent and others accounting for 12.72 percent. Under the pressure of the economic environment and the continuous decline in box prices, reducing costs and ensuring quality is a severe test for the container coatings industry. It is not desirable to simply reduce the zinc powder content in zinc-rich primer, and it is an inevitable trend for Box East to adopt more rigorous and scientific box inspection procedures. In order to improve production efficiency, reduce losses and costs, the new coating process will be greatly developed. ZHONG Group took the lead in realizing the automatic roll coating of workshop primers, the whole box spray industrialization, resulting in considerable social and economic benefits, has been box east, box factory, paint suppliers and other upstream and downstream industrial chain unanimous support.
2.3 Trends in container coatings and coatings
Increasingly stringent environmental regulations, especially solvent emissions, are a matter of life and death for box factories, many of which are now surrounded by communities. The solution to the problem is nothing more than: first, solvent recovery, second, paint hydration, and then there is relocation of this is not the way. THE GROUP pioneered the development of solvent recovery systems, with recovery rates increasing from an initial 30% to 70%, up to 90%. This system is now being rolled out throughout the industry.
, more economical and environmental protection and safety should still pay attention to the development of water-based container coatings and coating systems. From the beginning of the 21st century, Shenzhen Weixin company launched water-based container coatings, the United States Westber company developed a two-layer system without zinc powder, as well as COSCO Kansi three groups of water-based epoxy zinc-rich primer system, and in the south of the Central Group, Dalian box factory on-line test. The results show that the development of water-based container coating system has encountered bottlenecks. The performance of zinc-free two-tier system is reliable
and cost can not meet the requirements. Water-rich zinc-rich primer and supporting system have yet to be further improved, and the drying method and equipment of coating line need to be improved to meet the film-forming requirements of water-based coatings. Through technological innovation, the industrialization of water-based container coating system is likely to be realized.
should pay attention to the development and application of easy-to-clean epoxy paint in the product structure. At present, the cost of cleaning an old box is $10, which is considerable. ZHONGC Kansi first introduced epoxy paint with easy-to-clean, and first used in HAMBURG-SUD boxes, I believe other traditional suppliers will also quickly launch such products to meet the needs of the box East.
3 Anti-corrosion coating system for marine resources development and equipment
3.1 Anti-corrosion of offshore and deep-sea oil and gas exploration and processing equipment
In addition to SNOOC, China's coastal provinces regard the development of oil and gas resources as a major strategic direction in the development of marine economy. In addition to drilling rigs, ancillary oil and gas pipelines and storage and transportation facilities, developed countries have developed and used petroleum processing vessels, i.e. mobile petrochemical plants. Drilling platform In the South China Sea 1 up to 3000 m.
deep sea operations. Although the platform anti-corrosion coating system has been standardized, but with the platform large-scale and deep-sea more severe corrosion environment, still face new challenges. In particular, the maintenance and maintenance of the old platform is faced with extremely harsh construction environment, coating coating put forward higher requirements.
coating supporting system for drilling platforms must be tested and certified by CNOOC Marine Environment Laboratory according to industry standards. So far, paint suppliers are mainly IP, Jotun, Libang and other multinational companies, domestic Zhenhua Heavy Industry Changzhou paint company, fish children, etc. into the maintenance of the paint market. Submarine oil and gas pipelines, high-performance thin fire protection coatings will be the focus of research and development.
3.2 Coating System for Coastal and Offshore Wind Towers
As an important strategic direction for clean energy, wind power development, especially coastal wind power, is a priority and will reach
70 GW by 2020. And the installed wind tower is a large unit with a generating capacity greater than 6 MW. Tower height is greater than 60 m, blades grow longer than 50 m, coating performance requirements are very high, life is greater than 2