External wall insulation material “rebirth in fire” Nano-powder rises

Recently, reporters visited the market of building materials and found that, in the middle of last month, the Ministry of Public Security issued the “Circular on Further clarification of the Requirements for Fire Supervision and Management of External Thermal Insulation Materials for Civil Buildings”, which has traditionally been represented by polyurethane foam materials in recent days. The market for wall thermal insulation materials has shrunk dramatically. In contrast, the growth of nano-coatings has risen.

Nano coatings monthly sales growth of 5 times

The heat insulation effect of traditional polyurethane exterior wall insulation materials is not ideal, and the safety hazards are more and more obvious in the recent multiple fires, but the question is who can become a relay?

“The new insulation coating products that are relatively common on the market today are ceramic or glass insulating bead coatings. However, these bead coatings have low beading rates and large particles. In actual applications, they require multiple layers of paint and the surface is easily embossed. Injustice.” Industry insiders, because of these defects, these coatings products cost-effective.

It now appears that the small march is likely to become the trend of the thermal insulation architectural coatings market, this little finger is the nano-coating. The data show that, unlike ceramic or glass bead coatings, because the average diameter of microspheres in nano-coating coatings is 2 micrometers, and the smallest or even nano-sized, it is obviously smaller than 40-50 micron microbeads coated with ceramic microbeads. The nano-coatings have the advantages of uniform painting and low consumption while maintaining the thermal insulation properties of the former two. For this reason, it gradually slowed up in the building materials market.

The catalyst began in mid-March issued by the Ministry of Public Security “Circular on Further clarification of the Requirements for Fire Supervision and Management of External Thermal Insulation Materials for Civil Buildings” because of the provisions of the notification that external thermal insulation materials are installed within the scope of fire engineering design review and fire acceptance of construction projects. Civil buildings should incorporate the combustion performance of external thermal insulation materials into the review and acceptance content, and nano-coatings with both thermal insulation and cost advantages are rapidly emerging.

In this regard, Zhao Zhiwei, president of Ryan Tektronix Technology Co., Ltd., said that after the release of the Ministry of Public Security notice, sales of the “Cedunton” nano-environmental insulation system produced by the company rapidly expanded, and the sales volume in the past month was five times that of the previous month. .

Energy efficiency helps commercial promotion

The reporter learned that although this kind of nano-coating is a newcomer to the building materials market, there is no lack of application cases at present. The Shanghai World Expo’s Zero Carbon Pavilion and Vanke Experimental Building are among them representatives.

In this regard, Vanke real estate related staff pointed out: "The engineering data of China Vanke Building Research Center shows that only a layer of Thermalton nano thermal insulation coating on the exterior wall can achieve 53.38% energy saving effect. We are very concerned about this value of energy conservation, also It fits in with Vanke's low-carbon building concept, so in the future we will use it extensively in our projects.”

After using our hotton products and other green building materials, the Zero Carbon Pavilion can save 81% of heating energy consumption and 45% of electricity consumption compared with ordinary buildings. So Bill Dunster, the chief designer of the Zero Carbon Center in the United Kingdom, also stated that he will use our materials for the zero-carbon projects that he later designed. "Zhao Zhiwei said so.

It is reported that so far, real estate companies including Vanke Real Estate, Wantong Real Estate, Contemporary Real Estate, CITIC Real Estate, Huayuan Real Estate, Overseas Chinese Town, New World Real Estate, and Huatian Group have intentionally or practically applied nano-coatings.

But at the same time, the reporter also learned that, while more and more endorsed by the market, because of the lack of acceptance standards in the industry, the promotion of nano-coatings is not without resistance. “I hope that the relevant industry associations can establish a set of acceptance standards for the entire building materials industry, so that whether it is nano-coatings or more new building materials in the future, there can be standards that can be followed, and it is a good thing for consumers and businesses. It also helps the construction industry to enter the era as soon as possible, said Zhao Zhiwei.