8kg (16 ltrs)
Nominal 0.5-2.0mm (for typical grading limits see below)
Description and Use:
An exceptionally light weight and thermally insulating, natural micro-vesicular (bubbly) pumice sand for use in plasters, lime mortar, and cement based mixes.
The product has a light grey colour and is supplied in a kiln dried form.
Our clients have used this sand for renovation works where weight is a consideration, and in situations where thermal insulation is a determining factor, such as furnace, flue linings and pizza ovens.
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This sand contains no free silica.
Principal components typically:
Bulk Density 0.45g/cm3
Melting Point 1200C
Specific Gravity 2.4
Hardness 5.5 Moh
Thermal Conductivity 0.04 W(m-K) (Approximately 1/40th of the thermal conductivity of quartz based sands)
Medium dried pumice sand from Specialist Aggregates.