High temperature resistance
Ewende Micro silica powder has a very high melting point, and can maintain stable chemical properties under high temperature environment.
When a fire occurs, the micro silica powder in the coating can withstand high temperatures without melting or decomposing, effectively protecting the surface of the coated object.
It can prevent the spread of fire, and fight for more escape time and fire fighting opportunities.
The role of heat insulation
The particles of micro silica powder are fine and uniform, which can form a compact structure. This structure can effectively block the transfer of heat, and play the role of heat insulation.
In a fire, the micro silica powder in the coating can reduce the conduction of heat to the interior of the protected object, reduce the temperature of the surface of the object, thus protecting the object from being damaged by high temperature.
In addition, micro silica powder also has the advantages of enhancing the strength of coatings and improving durability, making it widely used in the field of fireproof coatings.
The amount of micro silica powder added to fireproof coatings is generally around 5% – 20%.
The specific value of the added amount is affected by many factors, such as the type of fireproof coating, the requirements of the application scenario, the performance of other raw materials, etc. If the added amount is too small, the coating may not be able to be applied.
If too little is added, the high temperature resistance and heat insulation of micro silica powder may not be fully utilized; while too much may affect other properties of the coating, such as leveling and adhesion.
In practical application, it is necessary to determine the most suitable additive amount of micro silica powder through testing and optimization to ensure that the fireproof coating can achieve the best fireproof effect and comprehensive performance.