The Natural Fire-Resistant DNA of Rock Wool
A 30mm-thick rock wool batt acts like a triple layer of fireproof armor; its core secret lies in the "stony lineage" of basalt. Formed by spinning molten rock at temperatures reaching 1600°C, it possesses an innate resistance to high heat:
Fiber melting point exceeds 1000°C-far surpassing the temperatures found in typical fires.
Composed of over 95% inorganic materials, containing no combustible components.
Its fluffy, porous structure creates an insulating air layer that effectively slows down heat conduction.
The Fiery Trials of the Laboratory
Simulated tests conducted in realistic fire scenarios revealed the following results:
Direct Flame Exposure: Self-extinguishes within 2 seconds of the flame being removed.
High-Temperature Baking: Sustained 300°C heat for 8 hours with absolutely no deformation.
Smoke Emission Test: During combustion, smoke density is merely 1/20th that of wood.
Molten Drippage: Produces no molten drips when heated, thereby preventing secondary ignition.
A Prudent Choice for Everyday Use
While its fire-resistant properties are exceptional, the following precautions should be observed during installation and use:
Avoid prolonged immersion in water, as this may compromise performance.
Promptly seal any cut edges or exposed cross-sections.
For enhanced performance, use in conjunction with aluminum foil.
In high-temperature zones-such as kitchens-it is recommended to increase the thickness to 50mm.