Vermiculite
Refractory Vermiculite
Vermiculite fibre is a natural insulating material derived from a mineral called vermiculite.
When subjected to a thermal expansion process, vermiculite transforms into tiny, light, porous flakes, forming a fibre with exceptional insulating properties.
Vermiculite fibre is a versatile, high-performance material, ideal for all applications requiring excellent thermal insulation and resistance to high temperatures.
Components
Characteristics
Properties
SiO2: 98%
MgO: 1,5-4%
Al2O3: 1%
Fe2O3: 0,6%
Good stability at high temperatures
Excellent resistance to thermal shock
Good dimensional stability
Low density
Good mechanical strength
Low thermal conductivity
Non-combustible
Excellent flexibility
Good chemical resistance
Good abrasion resistance
Colour: Ivory white
Maximum temperature: 1200°C
Melting temperature: 1700°C
Fibre-filament diameter: 6-9 microns
Reaction to fire: non-combustible
Solvent resistance: Good
Base resistance: Good
Acid resistance: Good
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