【 Building materials network 】As the "skin" of a building, the exterior wall of a building is not only related to the beauty of the building, but also directly affects the service life of the building and the quality of life of residents. As the first line of defense to ensure building safety, exterior wall waterproofing can effectively resist wind and rain erosion, prevent moisture penetration, and protect the safety and stability of the internal structure of the building. Therefore, once the exterior wall waterproof works have problems, it will not only lead to wall Cracking and falling off will affect the beauty of the building, and may cause serious problems such as leakage and humidity, endanger the safety of the building, and even affect the daily life of residents.

In the General Code for Waterproofing of Buildings and Municipal Engineering (GB55030-2022) officially implemented on April 1, 2023, the design provisions for the waterproofing of external walls are specially added: for the frame filled or masonry structure external wall with the waterproof grade of Level I, two or more waterproof layers shall be set, and for the frame filled or masonry structure external wall with the waterproof grade of Level II, One or more waterproof layers shall be set. When two waterproof layers are used, one waterproof layer shall be set mortar And 1 channel Waterproof coating or other Waterproof material (4.5.2).

Against this background, Dongfang Yuhong has combined the specification of "Strong Waterproof Bar", the pain points of exterior wall waterproof engineering, and the market demand with its rich experience in practice and exploration to launch a new product for exterior wall waterproof - V PC -100 steam permeable flexible waterproof coating 。 In practical application, this product can be used together with WM200 high-strength waterproof mortar to form two waterproof layers. The waterproof layer composed of the two and other structural layers together constitute the external wall insulation, waterproof and steam permeable system.

The external thermal insulation, waterproof and vapor permeable system of the external wall is another innovative measure launched by Dongfang Yuhong in the field of building materials system services: it takes the lead in introducing waterproof "vapor permeable" technology in China, and provides lasting protection for the thermal insulation system and the entire external wall system through the external waterproof layer of the thermal insulation layer with both waterproof and vapor permeable properties.

VPC-100 vapor permeable flexible waterproof coating is a single component, non exposed type, mainly based on vapor permeable polymer dispersion Film-forming substance The green environmental protection waterproof coating can be applied to the external thermal insulation, waterproof and steam permeable system of building exterior walls, effectively improving the energy-saving effect and long-term durability of external thermal insulation of exterior walls.

Good waterproof and steam permeability

VPC-100 vapor permeable flexible waterproof coating is different from other waterproof coatings in that it is waterproof and vapor permeable. After the product is painted on the exterior wall, it forms a mesoscopic microporous structure that can penetrate water vapor and a macro large continuous phase that can prevent liquid water, so as to achieve the effect of waterproof and vapor permeability.

External wall insulation The material shall be provided with an external waterproof layer to prevent external water from entering the insulation layer. Once the insulation material absorbs water, it will not only affect the insulation effect, but also damage the insulation system, resulting in safety risks. In case of water ingress into the insulation material, if the external waterproof layer has vapor permeability, it can provide a channel for water vapor discharge under certain conditions and play a protective role. Therefore, selecting a vapor permeable waterproof coating plays a vital role in the overall safety and durability of the entire exterior wall system.

Flexible anti cracking

Unlike the rigid waterproof coating commonly used for exterior walls, VPC-100 vapor permeable flexible waterproof coating is a flexible product, which has a certain flexibility. The elongation at break is ≥ 80% *, and the measured value is close to 100% *. It can resist certain base cracking, and has strong applicability to base shrinkage, deformation and cracking, which can effectively improve the durability of the exterior wall waterproof system.

Convenient construction

VPC-100 vapor permeable flexible waterproof coating is a single component product, which can be used immediately after being opened. Its construction methods are flexible and diverse, and can be roller coated and sprayed. When spraying is used, the dry film thickness of 1mm * can be achieved once, and the construction efficiency is high. At the same time, no additional curing is required after the coating is dry, and the coating film is not yellowing and cracking, and the performance is stable.

Roller coating effect

Spraying effect

Perfect system, safe and reliable

The complete supporting system scheme can fully release the product performance advantages.

Dongfang Yuhong exterior wall external insulation and waterproofing system has excellent performance, high compatibility and matching, safety and reliability, and can effectively deal with exterior wall waterproofing projects. The test is carried out according to the performance test method of external wall external insulation system and its component materials in Appendix A of JGJ144-2019 Technical Standard for External Wall Thermal Insulation Engineering (system weather resistance test, system freeze thaw resistance test, system impact resistance test, system water absorption test, tensile bond strength test, system thermal resistance test, and protective layer water vapor permeability test), The test results show that all items of the system are qualified.

VPC-100 vapor permeable flexible waterproof coating is applicable to waterproof works of new external walls and external wall maintenance. Since its launch in 2023, the product has been successfully applied to many projects across the country, including cold areas: Mohe, Heilongjiang; Cold areas: Jinzhou, Liaoning, Beijing, Qingdao, Shandong; Hot summer and cold winter area: Shanghai; Moderate areas: Yunnan, etc. After nearly a year of verification, the innovative design concept, high-quality product performance and convenient construction method of the product have been widely recognized by customers.

VPC-100 vapor permeable flexible waterproof coating

Waterproof and steam permeable, the first in China

Meet the new regulations and improve the system

Specially designed for exterior wall, lasting protection