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What is perlite

Perlite is a 100% natural mineral.

Our perlite is mined in the Greek island of Milos. When rapidly heated to between 900º and 1200º C, the crystalline water that is in the core of the perlite expands. This expansion results in a porous surface and an increase in the perlite's volume (between 4 and 20 times), which in turn results in superior thermal insulation and sound proofing properties, as well as an extreme lightness. These characteristics, along with the fact that the energy consumed in the process is low, makes perlite a Greek eco-clean product.

Perlite is a versatile natural mineral and has countless applications such as:
- in the building industry, as a lightweight thermal insulation and sound proofing substrate for roofs, floors, walls, bricks, paints, plasters, mortars, paints and varnishes.
- in agriculture, as a medium for hydroponics, soil preparation for flowers or crops, for filtering drinks, edible oils, water, chemicals and for pharmaceutical preparations.
- in industrial applications, for cryogenic insulation, for storage and transportation of liquefied industrial gases, for absorption of industrial oils and hazardous liquids in contaminated areas, in metallurgy, as well as in refractory applications in foundries.


CHEMICAL ANALYSIS

COMPOSITION:

Alumina-alkali silicate (amorphous silicate)

Typical Chemical Composition (on dry sample):

Al2O3

CaO

Fe2O3

SiO2

MgO

Na2O

K2O

Ti O2

S

% wgt

14,12

1,21

1,00

76,00

0,18

3,38

2,70

Traces

0,02



NATURAL PROPERTIES

• Chemically inert
• Odorless
• Light weight (low specific weight)
• Thermal insulation
• Sound proofing
• Easy to use
• Environmentally friendly
• Non-flammable
• Neutral pH
• Sterile, free of weeds and pathogens
PHYSICAL PROPERTIES
Color: White
Specific Gravity: 40-100kg/m3
PH: 6.5-7.5 Moisture 0.3% grain sizes 0-3mm-2-6mm 05-2,5 mm
Softening point: 850-1100ºC
Melting Point: 1250-1350ºCThermal Conductivity: 0.043-0,063 W / mK