Vermiculite is an inorganic mineral, present in nature in the form of flakes or lamellar crystals which, heated to about 300 ° C, expand in a perpendicular direction to the cleavage planes, assuming vermicular twisted shapes with golden reflections.
Ideal for backfilling, it has excellent insulating properties, is non-combustible, does not emit toxic gases, smoke or odors and is extremely light.
Available in two grain sizes: 0.4-0.8 mm and 0.6-1.2 mm.