How to avoid cracking and deformation of BMSC 517 New Sulfate MgO Board after long-term use?

In order to prevent BMSC 517 New Sulfate MgO Board from cracking and deformation after long-term use, the following measures can be taken:

Choose a suitable installation environment
Avoid direct exposure in high humidity and high salt spray environments (such as swimming pools and seaside buildings). It is recommended to perform additional surface protection treatment.
In areas with large extreme temperature differences, it is recommended to use appropriate expansion joint design to reduce the impact of temperature stress on the board.
Correct installation method
Reserve expansion joints: Leave 2-3mm expansion joints between the boards during installation to reduce the impact of thermal expansion and contraction on the material.
Use rust-proof fixings: Use stainless steel or galvanized screws to prevent unstable fixing due to rust, causing the board to loosen or deform.
Avoid over-tightening: The screws should not be over-tightened during fixing to prevent uneven force on the board and cause cracking.
Use light steel keel frame: Use keel frame support to ensure that the board is evenly stressed and reduce stress concentration.
Proper surface treatment
Moisture-proof sealing treatment: When used in a humid environment (such as a bathroom or basement), a waterproof coating or penetrating sealant can be applied to the surface of the board to reduce moisture absorption.
Paint or coating protection: If used outdoors or in high-humidity areas, it is recommended to apply a waterproof coating or UV protective coating to improve weather resistance.

Avoid exposure to rain: When used outdoors, the edge should be sealed and protected in combination with exterior wall decoration materials (such as curtain walls and stones).
Control the use environment
Avoid long-term immersion in water: Although BMSC 517 has good moisture-proof performance, long-term immersion in water may still affect its structural stability. It is recommended to design drainage in areas where water may accumulate.
Control indoor humidity: When used in a closed environment, it is recommended to keep the humidity between 30%-60% to reduce the risk of swelling and shrinkage.
Choose the right thickness
When used in walls or ceilings, choose a board with a thickness of ≥8mm to enhance rigidity and anti-deformation ability.
When applied on the ground, it is recommended to use a thickness of ≥12mm and match it with a suitable base support structure to improve the load-bearing capacity.
Quality Control and Regular Maintenance
Make sure that the board meets ASTM, GB or EN standards when purchasing to avoid performance problems caused by inferior products.
Regularly check whether there are cracks, bulging or discoloration on the surface of the board, and repair possible water penetration areas in time.

Through these measures, the service life of BMSC 517 New Sulfate MgO Board can be significantly extended, and cracking and deformation problems caused by improper environment or installation can be reduced.