
2025-10-14
In building waterproofing construction, PU-108 hydrophobic expanding sealant is an indispensable material, particularly suitable for windows, door frames, and other leak-prone areas. When using PU-108, several techniques can enhance its effectiveness and ensure long-term waterproof performance.
First, it is essential to ensure that the surface is clean and dry before construction. Remove all dirt, dust, and grease to improve the adhesion of PU-108. It is recommended to use a high-pressure washer for cleaning and allow the surface to dry completely before application.
Secondly, the correct mixing ratio and application method are crucial. Follow the instructions in the product manual for accurate measurement and mixing of PU-108 to ensure optimal performance. During application, use a professional spray gun or brush to evenly coat the seams and areas that require waterproofing, ensuring that every corner is adequately covered.
Additionally, it is advisable to conduct inspections after application. Once PU-108 has cured, check for any signs of leaks and perform touch-ups as necessary. This process not only allows for timely problem detection but also further strengthens the integrity of the waterproof layer.
Finally, try to avoid construction in extreme weather conditions, such as strong winds or heavy rain, to prevent damage to the material’s performance. By following these tips, PU-108 will effectively prevent rainwater penetration, enhancing the durability and safety of the building.

