Main fire characteristics.
1. with the highest fireproof grade A1, it can effectively prevent the spread of fire.
2. Very stable in size, will not elongate, shrink or deform in a fire.
3. High temperature resistance, melting point higher than 1000℃.
3. Does not produce smoke or burning droplets/debris in a fire.
4. Does not release environmentally harmful substances and gases in a fire.
Product features.
1. Thermal insulation: exterior rock wool board fiber is thin and flexible, with low slag ball content. as a result, the thermal conductivity is low and it has excellent heat insulation effect.
2 sound absorption and noise reduction: rock wool is the ideal sound insulation material, a large number of thin and long fibers form a porous connection structure, which determines that the stone wool can be an excellent sound absorption and noise reduction material.
3. Water repellent: water repellent rock wool products can reach 99.9%; water absorption rate is very low, no capillary penetration.
4. Moisture resistance: Rock wool in the environment of high relative humidity, volume moisture absorption rate is less than 0.2%, according to ASTMC1104 or ASTM1104M method test, the mass moisture absorption rate is less than 0.3%.
5. Non-corrosive: Rock wool is chemically stable, PH value of 7-8, neutral or weakly alkaline, on carbon steel, stainless steel, aluminum and other metal materials are non-corrosive.
Aluminum and other metal materials are not corrosive.
6. Safety, environmental protection: Rock wool is tested not to contain asbestos, CFC, HFC, HCFC and other substances harmful to the environment. It will not be corroded or produce mold and bacteria. (Rock wool has been recognized by international cancer research authorities as a non-carcinogenic substance)