Perlite is used as an active filler in paints, coatings and grouts. It is also used as an additive in textured coatings and plasters due to its lightweight and insulating properties. As it is inert and non-flammable it is extensively used in fire proofing and chimney lining applications. Perlite filter aids are used in the treatment of industrial effluents usually in a filter press system.

Technical Data Sheet

1. Product Name / Reference


2. Main Intended Use

Textured coatings and lightweight plasters, industrial effluent filter aid, Horticultural Media

3. Chemical Description

Compound Element Chemical Formula      Typical Content
Silicon Dioxide SiO2 73.20%
Aluminium Oxide Al203 15.12%
Potassium Oxide K2O 4.95%
Sodium Oxide Na2O 3.07%
Ferric Oxide Fe2O 1.89%
Calcium Oxide CaO <1.00%
Magnesium Oxide MgO <1.00%

Determined by FAAS

4. Physical Properties

a. Bulk Density 0.055 – 0.105 g/cm3
b. Softening Point 890 – 1100 oC
c. Fusion Point 1280 – 1350 oC
d. pH Value 6.5 – 7.5
e. Specific Gravity 2.30 g/cm3

5. Sizes Available

Grade Size
MH05 0.01 – 0.50 mm
MH10 0.30 – 2.36 mm
MH15 0.15 – 3.00 mm
MH25 2.00 – 3.30 mm
MH35 2.00 – 5.00 mm
MH16 1.00 – 6.00 mm

6. Packaging

Packed in 100 litre sacks and 1000 and 1700 litre IBC big bags.

Water Filtration Yes
Odour Control Yes
Green Roof Systems Yes
Cosmetics Scrubs Yes
Dental Treatments Yes
PCB Scrubbing No
Glass Treatments Yes
Metal Finishing Yes
Lightweight Precast Concrete No
Odour Treatment No
Seawater Reverse Osmosis Yes
Automotive Polish No
Effluent Treatment Yes
Horticulture Yes
Construction No
Hand Cleaner Yes
Paints & Coatings Yes
Lightweight Plasters Yes
Spill Media Yes