Long-term effect of silicone waterproof coating in roof repair
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Silicone waterproof coating shows excellent long-term performance in roof repair, mainly through its high weather resistance and durability to ensure the long-term stability of waterproof effect, which is specifically reflected as follows:
1. Core long-term advantages
Service life of more than 20 years
Under the conditions of correct construction and maintenance, the service life of silicone waterproof coating can reach more than 20 years, which is significantly better than traditional materials (such as asphalt 10-15 years). Its silicone rubber substrate forms an elastic waterproof membrane, which can adapt to the deformation of the substrate and prevent the recurrence of leakage caused by cracking.
Adaptability to extreme environments
Wide temperature resistance range: Adapt to the temperature difference of -35℃ to 150℃, resist severe freezing and thawing or high temperature exposure, and avoid coating failure caused by thermal expansion and contraction.
UV and aging resistance: The silicone resin component effectively resists UV degradation, and the performance attenuation rate is low under long-term exposure (such as retaining 85% waterproof performance after 25 years). Protection and repair performance
The coating penetrates the base layer to a depth of 0.3mm, forming a mechanical bite layer, sealing micro cracks and improving bonding strength (≥1.6MPa). The breathable design allows water vapor to be discharged, eliminating hollowing and mildew, and maintaining the integrity of the waterproof layer for a long time.
2. Additional protection features
Convenience of construction: Supports direct painting on wet base surfaces, without complex pretreatment, shortening the repair period.
Environmental protection and safety: The water-based formula is non-toxic and pollution-free, meets green building standards, and is harmless to the environment and human body.