As the "skin" of the building, the exterior wall of the building is not only related to the aesthetics of the building, but also directly affects the service life of the building and the quality of life of the residents. As the first line of defense to ensure the safety of the building, the waterproofing of the exterior wall can effectively resist the erosion of wind and rain, prevent water penetration, and protect the safety and stability of the internal structure of the building. Therefore, once there is a problem in the exterior wall waterproofing project, it will not only lead to cracking and falling off of the wall, affecting the aesthetics of the building, but also may cause serious problems such as leakage and dampness, endangering the safety of the building and even affecting the daily life of residents.
In the GB55030-2022 "General Code for Waterproofing of Construction and Municipal Engineering" (hereinafter referred to as the "Waterproof Strong Strip"), which was officially implemented on April 1, 2023, the design regulations for exterior wall waterproofing were specially added: 2 or more waterproof layers should be set for frame filling or masonry structure exterior walls with a waterproof grade of 1, and 1 or more waterproof layers should be set for frame filling or masonry structure exterior walls with a waterproof grade 2. When 2 waterproofs are used, 1 waterproof mortar and 1 waterproof paint or other waterproof materials should be set (4.5.2).
In this context, Oriental Yuhong combined the "Waterproof Strong Strip" specification, the pain points of exterior wall waterproof engineering, and market demand with its own rich practice and exploration experience to launch a new product for exterior wall waterproofing - VPC-100 vapor permeable flexible waterproof coating. In practical applications, the product can be used with WM200 high-strength waterproofing mortar to form two waterproof layers. The waterproof layer composed of the two and other structural layers together constitute the external wall external thermal insulation waterproof and vapor permeable system.
The exterior wall external thermal insulation waterproof vapor permeable system is another innovative measure launched by Dongfang Yuhong in the field of building materials system services: it is the first to introduce waterproof "vapor permeability" 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 insulation layer with both waterproof and vapor permeability.
VPC-100 Vapor Permeable Flexible Waterproof Coating is a one-component, non-exposed, green waterproof coating with vapor permeable polymer dispersion as the main film-forming substance, which can be applied to the waterproof and vapor permeable system of building exterior wall thermal insulation, effectively improving the energy-saving effect and long-term durability of exterior wall thermal insulation.
Good waterproof and vapor permeability
VPC-100 vapor permeable flexible waterproof coating is different from other waterproof coatings, and the biggest feature is waterproof and vapor permeable. After the product is painted on the exterior wall, it forms a mesoscopic microporous structure that can be permeable to water vapor and a macroscopic continuous phase that can prevent liquid water to achieve a waterproof and vapor permeable effect.
The exterior wall insulation material should be equipped with a waterproof layer to block 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 and cause safety risks. When the insulation material has water ingress, if the peripheral waterproof layer has vapor permeability, it can provide a channel for water vapor discharge under certain conditions and play a protective role. Therefore, choosing a vapor-permeable waterproof coating plays a crucial role in the overall safety and durability of the entire exterior wall system.
Flexible and resistant to cracking
Different from the rigid waterproof coating commonly used on exterior walls, VPC-100 vapor permeable flexible waterproof coating is a flexible product, with a certain flexibility, elongation at break ≥ 80%*, and the measured value is close to 100%*, which can resist a certain amount of cracking of the base layer, and has strong applicability to shrinkage, deformation and cracking of the base layer, which can effectively improve the durability of the exterior wall waterproof system.
Convenient construction
VPC-100 is a one-component product, ready to use out of the barrel, flexible and diverse construction methods, and can be rolled and sprayed. When the spraying method is used, the thickness of the dry film can be reached at 1mm* in one pass, and the construction efficiency is high. At the same time, there is no need for additional maintenance after drying, and the coating film does not turn yellow or crack, and the performance is stable.
Roller coating effect
Spraying effect
The system is perfect, safe and reliable
The complete supporting system solution can fully release the performance advantages of the product.
Dongfang Yuhong external wall external insulation and waterproof system has excellent performance, high compatibility and matching, safe and reliable, and can efficiently cope with external wall waterproof projects. According to the test method of Appendix A of the external wall external thermal insulation system and its constituent materials in JGJ 144-2019 "Technical Standard for External Wall Thermal Insulation Engineering", the test (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, protective layer water vapor permeability test) was tested, and the test conclusion showed that the test results of all items of the system were qualified.
VPC-100 vapor permeable flexible waterproof coating is suitable for waterproofing projects of new exterior walls and exterior wall maintenance. Since its launch in 2023, the product has been successfully applied to many projects across the country, including severe cold areas: Mohe, Heilongjiang, cold regions: Jinzhou, Beijing, Shandong, Qingdao, Liaoning, hot summer, cold winter: Shanghai, mild regions: 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透汽型柔性防水涂料
Waterproof and vaporproof, the first in China
Meet the new regulations and improve the system
Designed for exterior walls to last for long-lasting protection