General Specifications

Physical Properties

Physical State

FREE FLOWING

Colour

WHITE

THERMAL CONDUCTIVITY

0.03 - 0.05 w/mk . DEPENDS ON DENSITY

LOOSE DENSITY

40 – 50 Kg. / Cu.M

COMPACT DENSITY

55 – 70 Kg. / Cu.M

MOISTURE

MAXIMUM 0.5 %

FIRE RESISTANCE

PERLITE IS NON-COMBUSTIBLE

ORGANIC MATTER

MAXIMUM 0.1 %

GRADING

RETAINED ON 1.180 mm 10 % MAX. (ASTM 16 MESH SIEVE) RETAINED ON 0.150 mm 80 % MIN. (ASTM 100 MESH SIEVE)

BIOLOGICAL

ROT PROOF AND VERMIN PROOF

Chemical Properties

SILICON DIOXIDE %

70.0 TO 76.0

ALUMINIUM OXIDE %

10.0 TO 14.0

FERRIC OXIDE % (max)

0.40

FERROUS OXIDE % (max)

0.50

CALCIUM OXIDE %

0.50

MAGNESIUM OXIDE %

0.20

SODIUM OXIDE %

3.0 TO 4.0

POTASSIUM OXIDE %

4.0 TO 5.0

ORGANIC MATTER %

NIL

p^H OF 10% SLURRY IN WATER

6.5 TO 8.0

NB : The specifications and information given herein are in good faith, but without warranty.