Perlite P40 Extra Coarse

Applications	Absorbent Horticultural applications Loose-pour applications Pipe and dust extraction
Chemical Properties	Perlite P40 is an aluminium silicate. Typical composition is: Silicon (SiO2) 73% Aluminium (Al2O3) 15% Iron (Fe2O3) 2% Sodium (Na2O) 3% Potassium (K2O) 5% Calcium (CaO) + Magnesium (MgO) 1% Others 1% pH 6.5 - 7.5 Organic Matter nil Moisture Content (when packed) nil
Physical Properties	Expanded Perlite P40 is white with a nominal particle size of 3.0 - 6.0 mm. Refractive Index 1.5 Free Moisture (max) 0.5% pH of Water Slurry 6.5 - 8.0 Softening Point 890 - 1100oC Fushion Point 1280 - 1350oC Specific Heat 837J/kgK (0.2 cal/gc) Thermal Conductivity 0.05 w/mC
Grading Specification	The bulk density of Perlite P40 is 85 - 105 kg/m3 Sieve Size % by weight passing 4.75 85 - 100 3.35 50 - 70 2.36 25 - 40 1.7 10 - 25 1.8 0 - 15
Packaging	Perlite P40 is normally supplied in plastic sacks containing 100 litres (approximately 3.5ft3). Alternative packaging is available to order.
Health and Safety	Expanded Perlite P40 is a heat-processed, inorganic material and since no chemical changes occur it is considered non-reportable. However it is advisable to study the Perlite Material Safety Data Sheet compiled in accordance with COSHH/CHIP Regulations.