Company News

Global Silicone Network March 28: CCTV Zhengdian Finance "Chemical Raw Material Price Increase Survey" reported that at the beginning of 2022, the prices of the main raw materials of waterproof materials rose sharply year-on-year, and materials such as asphalt and silicone emulsion rose by more than 30%. A number of coating and waterproof material companies have issued product price increase letters. However, at present, the rise in finished product prices still cannot keep up with the increase in cost.

Waterproof Mao Dongfang Yuhong’s third investment since 2022. On the evening of March 18, Oriental Yuhong announced that it plans to invest 600 million yuan in Xingning District, Nanning City, Guangxi to invest in the construction of Oriental Yuhong Nanning Green New Material Production Base Project. Product R&D and production projects of thermal insulation materials, civil building materials, architectural coatings, etc. The project is to be constructed in two phases, with an estimated investment of 600 million yuan for the first phase; the two parties for the second phase agree separately.

According to statistics, from 2021 to now, Oriental Yuhong plans to invest more than 35 billion yuan in setting up a company and investing in a base. Oriental Yuhong has smashed 35 billion yuan, and several other leading listed companies such as Beixin Building Materials, Keshun Waterproofing, Karen Shares, Three Trees, and Asia Chuangneng have also invested heavily in the field of silicone waterproofing.

According to the statistics of China Building Waterproofing Association, in 2021, the total revenue of waterproof enterprises above designated size (main business income of more than 20 million yuan) will be 126.159 billion yuan, a year-on-year increase of 13.20%; the total profit will be 7.564 billion yuan, a year-on-year increase of 2.04%. %. In 2021, despite the risk exposure of some housing companies, the shortage of funds, and the continuous decline of real estate fundamentals, the silicone waterproofing industry still achieved positive growth in revenue and total profit, demonstrating the resilience of the silicone waterproofing industry.

It is reported that from March 25, 2022, there are also three tree waterproof series products. According to the price adjustment notice issued by Shanghai 3trees Waterproofing Technology Co., Ltd. on March 15, from the beginning of 2022, the prices of upstream raw materials such as petroleum asphalt, SBS, emulsions, and modifiers have risen rapidly, resulting in a substantial increase in the cost of waterproofing products. In order to ensure the provision of high-quality products and services to customers, 3TREES waterproofing products will adjust their prices from March 25. The price adjustment category and range: asphalt waterproofing membranes will increase by 15%; silicone waterproofing membranes will increase by 10%; organic The price of silicone waterproof coatings will be increased by 15%-20%; for specific prices, please refer to the latest price list in 2022 and related price management systems.

Some research reports believe that under the background of "double carbon", new waterproof materials such as silicone waterproofing usher in development opportunities. In the "Catalogue of Technologies and Products Encouraged for Promotion and Application in the Building Materials Industry" issued by the Ministry of Industry and Information Technology, silicone waterproofing is listed as a building material product that is encouraged to be promoted.

Silicone water repellent has two properties: water-based and oil-based. The water-based silicone waterproofing agent is colorless or light yellow. It can also be used as a retarder, water reducer and enhancer when it is mixed into cement mortar. Therefore, it is suitable for use in the construction industry, exterior wall finishing, underground engineering, antique buildings, pools, bricks, cement, gypsum products, thermal insulation materials with perlite as the main material, and waterproof, moisture-proof and anti-pollution treatment of rural roofs . Oil-based silicone water repellent is transparent and is generally used for glaze, ceramic tile, floor tile, ceramics, etc. It can be diluted with some solvents and is easy to use.

The principle of water repellency of silicone emulsion: when the silicone emulsion is heated to above 140 ℃, the polysiloxane is oriented on the fabric, the hydrophobic group - CH3 is facing outward, and the silicon atoms and oxygen atoms of the silicone oil emulsion and the fibers on the fibers are oriented. Certain atoms form coordinative bonds and hydrogen bonds, so that water vapor and air can pass through the fabric, but water droplets cannot. The hydroxyl group at the top of the polysilicon oil emulsion chain is grafted with the hydrogen-containing silicone oil, that is, the Si in the hydrogen-containing silicone oil. The H bond is hydrolyzed to Si. H, which is dehydrated and grafted with terminal hydroxyl groups of silicone oil to form long-chain molecules, which become larger and softer, which can increase water repellency. Silicone oil and hydrogen-containing silicone oil are crosslinked on the surface of the fabric at 150-180℃ to form a polyorganosiloxane resin film that is insoluble in water and solvent. The methyl group in the silane structure faces outward, resulting in water repellency, film discontinuity and breathability.

It is widely used in the inner and outer walls of various buildings, especially to solve the problem of indoor mildew caused by water seepage in the east and north walls of civil houses. Anti-pollution cleaning, anti-weathering, anti-acid rain treatment of internal and external walls, and waterproofing works for reservoirs, water towers, cisterns, sewage treatment plants and agricultural irrigation and drainage channels; Computer room, power distribution room, warehouse, etc. are also applicable.

Photovoltaic roof waterproofing is expected to become a new growth pole. With the continuous increase of new waterproof materials and new processes, and the continuous improvement of the application technology of building waterproof materials, the application field of building waterproof materials has gradually expanded from the field of housing construction to infrastructure projects such as rail transit and water conservancy facilities; building waterproof parts It also gradually extends from the traditional roof and underground to the interior and exterior walls. The expansion of application fields has further strengthened the market demand for new building waterproof materials, and promoted the stable and rapid development of the industry in recent years. At the same time, the progress of waterproof material technology and the market's demand for building green environmental protection provide strong conditions for waterproof materials to enter the green building and photovoltaic building industry.