What measures can be taken to improve the moisture-proof performance of glass wool board?
Publish Time: 2025-06-10
Glass wool board is a high-efficiency thermal insulation and sound-absorbing material made of natural minerals such as quartz sand, limestone, and dolomite through high-temperature melting and centrifugal spinning technology. Its fibers are arranged in a three-dimensional cross-arranged structure, and are filled with a large number of tiny pores. It has excellent thermal insulation, sound absorption and noise reduction, corrosion resistance and stable performance. It is widely used in construction, industrial equipment, ventilation systems and other fields. However, in actual application, especially in high humidity or humid environments, glass wool board may suffer from performance degradation due to moisture absorption, such as increased thermal conductivity, weakened mechanical strength, and shortened service life. Therefore, improving the moisture-proof performance of glass wool board is the key to ensuring its long-term and stable use.1. Adding hydrophobic agent treatmentIn the production process of glass wool board, a certain proportion of hydrophobic agents (such as silanes, organosiloxanes, etc.) are usually added to reduce the hydrophilicity of the fiber surface. This treatment method can effectively reduce the material's absorption of moisture in the air and prevent weight gain and reduced thermal insulation performance caused by moisture absorption. Water repellent can form a hydrophobic film on the fiber surface, making it difficult for water molecules to penetrate into the material, thereby improving the overall moisture-proof ability.In addition, the addition of water repellent will not affect the original physical properties of glass wool board, such as thermal conductivity, sound absorption effect and compressive strength, so it is an economical and efficient moisture-proof measure.2. Use veneer materials for protectionIn order to further enhance the moisture-proof performance of glass wool board, manufacturers can provide a variety of surface veneer materials according to customer needs. Common veneers include:Aluminum foil veneer: It has good waterproof, moisture-proof and heat-reflecting properties, and is suitable for central air-conditioning ducts, hot and cold water pipes and other occasions that require insulation and condensation.Glass fiber cloth veneer: It enhances the mechanical strength of the material and has a certain moisture-proof function. It is suitable for areas with high decorative requirements such as walls and ceilings.PVC film veneer: It has excellent sealing and waterproof properties and is suitable for environments with high humidity such as basements and cold storage.Metal mesh veneer: It not only improves the durability of the material, but also plays a certain role in vapor isolation.These veneer materials can not only effectively prevent external moisture from penetrating, but also improve the construction convenience and aesthetics of glass wool board, which is one of the important means to improve its moisture-proof performance.3. Optimize installation and sealing processIn addition to the treatment of the material itself, the correct installation method also plays a vital role in the moisture-proof performance of glass wool board. For example, in the insulation project, it should be avoided from direct exposure to humid air and placed in a closed or semi-enclosed space as much as possible. At the same time, special sealing tape or glue is used to seal the joints to prevent moisture from entering the material from the gap.In the application of duct system or pipeline insulation, it is recommended to use a double-layer wrapping method and add a moisture-proof layer on the outer layer to maximize the blocking of the water vapor intrusion path. In addition, after the installation is completed, the entire system should be tested for air tightness to ensure that there are no leaks.4. Control environmental humidity and ventilation conditionsIn some special environments, such as underground spaces, bathrooms, kitchens, etc., the air humidity is high. Even if the glass wool board itself has good moisture-proof performance, it still needs to be combined with a good ventilation design to maintain air circulation and reduce the local humidity level. If necessary, dehumidification equipment or temperature and humidity monitoring systems can be installed to adjust the indoor environment in real time, fundamentally reducing the possibility of moisture in the material.5. Choose professional customized productsDue to different requirements for moisture-proof performance in different application scenarios, it is recommended that users put forward clear technical indicators according to the specific use environment when purchasing glass wool board. Professional manufacturers can provide customized moisture-proof solutions according to customer requirements, including adjusting the formula, selecting suitable veneer materials, and optimizing the production process to meet the moisture-proof requirements of specific projects.In summary, improving the moisture-proof performance of glass wool board can start from multiple aspects such as material modification, veneer protection, installation process, environmental control and customized services. Through scientific design and reasonable construction, not only can the service life of glass wool board be extended, but also its stable thermal insulation, sound insulation and sound absorption performance can be ensured in various complex environments.
