Rock wool board, also known as rock wool thermal insulation and decorative board, is an inorganic fiber board made by melting and processing basalt at high temperatures. It was successfully tested in June 1981. Rock wool board is a new type of thermal insulation, fire-retardant, and sound-absorbing material.
Rockwool Board Features
Fire-resistant
Exterior rock wool boards are made from natural volcanic rock, a non-combustible building material and fire-resistant material.
Key Fire Retardant Features:
⚠️ Class A1 high fire rating; effectively prevents the spread of fire.
Size is extremely stable; it will not elongate, contract, or deform in a fire.
High-temperature resistant, melting point above 1000°C.
No smoke or burning droplets/particles produced in fire.
No harmful environmental substances or gases are released in the event of a fire.
Insulation and heat preservation
The exterior rock wool board features fine, long, and flexible fibers with low slag content. Consequently, it has a low thermal conductivity and excellent insulation performance.
Acoustic Noise Reduction
Rock wool is an ideal sound insulation material, with its large number of slender fibers forming a porous interconnected structure, determining that Sikada rock wool is a sound-absorbing and noise-reduction material.
Hydrophobic
Water-repellent rock wool products can achieve a water-repellency rate of up to 99.9%; low water absorption, no capillary penetration.
Moisture-resistant properties
Rock wool has a moisture absorption rate of less than 0.2% in environments with high relative humidity. Tested according to ASTM C1104 or ASTM 1104M methods, the quality moisture absorption rate is less than 0.3%.
Non-corrosive
Rock wool has stable chemical properties with a pH value of 7-8, neutral or slightly alkaline, suitable for carbon steel and stainless steel.
All metal materials such as aluminum are free of corrosion.
Safety & Environmental Protection
Rock wool is tested to be free of asbestos and harmful substances to the environment such as CFCs, HFCs, HCFCs, etc. It is not corroded or prone to mold or bacterial growth.