Calcium silicate board has become the preferred building material for high humidity scenes such as bathrooms, kitchens, and basements due to its excellent moisture-proof performance. Its moisture-proof properties are derived from the following core advantages:
The base material is synthesized by high temperature and high pressure with silicon (quartz powder), calcium (lime) and reinforcing fiber. It has no organic components, a dense structure, and a water absorption rate as low as ≤10% (the water absorption rate of ordinary gypsum board is >30%), which effectively blocks water vapor erosion and does not expand or deform in a long-term humid environment.
Inorganic components do not provide a nutrient source for mold. With a moisture-proof coating (optional), the surface mildew resistance level reaches level 0 (GB/T 1741 standard), eliminating the problem of blackening and mildew spots in a humid environment and extending the life of the wall.
After boiling in boiling water for 6 hours (GB/T 7019 standard), the flexural strength retention rate is >90%, and it can still maintain high strength in an environment with humidity >85%, avoiding the risk of powdering and cracking of traditional boards after moisture.
Purchase tips: Pay attention to the density of the board (≥1.2g/cm³) and moisture-proof certification (such as JC/T 564.1 standard), and give priority to products with notched designs to improve the moisture-proof effect of joints.
