PHYSICAL APPEARANCE
Perlite is a volcanic rock of the family of amorphous silica; its color ranging between white and gray. It comes in granules of different sizes and densities:

Fine perlite (0-2 mm);
Medium perlite (1-3 mm);
Horticultural perlite (2-5 mm)

PROPERTIES

Main properties of perlite:

Expands when heated:
Crushed perlite has the property of expanding when heated at varying temperatures between 900o to 1100o C. Its volume may increase four- to twenty-fold.

Porous texture:
Surface pores or cavities develop on perlite particles during dilation. These pores trap moisture on which plant roots thrive. Perlite particles are irregular in shape and leave air passages in the soil at the base of plant cultures, for optimal aeration.

Liquid retention:
Perlite’s porous texture retains moisture and fertilizers. With appropriate granule size, perlite provides optimal irrigation as well as perfect drainage for all your horticultural projects.

Air circulation:
Because of their irregular shape, perlite particles provide aeration in growing mixes and substrates, and in many industrial applications.

Low density – cannot be compacted:
Since heated perlite increases in volume while keeping the same mass, expanded perlite has a very low density which, combined with its other characteristics (neutral pH and porous texture), makes it an ideal filling material which cannot be further compacted.

Chemically neutral:
Perlite is an odorless, non-flammable, and non-explosive chemical; an inorganic component which does not deteriorate. Other benefits of horticultural perlite are its neutral pH (6.5 to 7.5) and the fact that it is sterile and weed-free. These reasons explain its popularity for various applications from window boxes to filtration in pharmaceutical and food industries.

Low conductivity – insulation, fireproofing and soundproofing:
Perlite’s low conductivity makes it an ideal refractory material in bricks or tiles or as insulating material in pipes.

Through being expanded, perlite is light ,multi-functional ,new materials.

It has light apparent density,low thermal conductivity, fine chemical stability and wide use temperature range.

It is non-toxic, flavorless,fireproof, acoustic etc.

It is widely used in many industries.

Item

Particle Size

Raw Perlite

12-16, 14-20, 16-32, 20-40, 30-50, 50-150, 200-325 mesh

Expanded Perlite

0.05-1, 0.06-2.5, 0.1-1, 1-2, 1-3,1-4, 2-4,3-5mm, >40 micron,

Perlite Filter Aid

GK-110 thick, medium, thin, extra thin

Closed Cell Perlite

SiO₂

TiO₂

Al₂O₃

Fe₂O₃

FeO

MnO

72.00

0.09

12.31

0.54

0.06

microelement

MgO

CaO

K₂O

Na₂O

P₂O₅

LOI

0.14

1.00

4.67

3.29

0.04

4.94

?Max. application temperature

?800°C

Softening temperature

?870°C

?Melting temperature

?1260°C

?Heat capacity(between 77 and 300K)

?0.50 J/g K

?Cellular structure

?open-cellular

?Porosity

?97% by volume

?Moisture content(in the open air)

?Up to 0.5% by weight

?Max. moisture content

?Up to 900% by weight

?Density of the perlite ore

?2200 to 2400 kg/m3

Density of the fine-ground perlite ore

?1200 kg/m3

Building Industry:

?

Produce light, thermal insulation and acoustic board; Be ideal materials of various industrial equipment and pipe insulating layer;

Fillter Aid and Filler

?

Be filtering agent,when making wine,drinking, syrup,vinegar etc; Purify various liquid and water,coming up to innoxious to human and animal;Be filler of plastic,rubber, , enamel etc;

Agriculture and Horticulture

Reform soil and adjust soil hardened;Prevent plants from falling down and control fertilizer efficiency and fertility;Be diluent? and carrier of biocide and herbicide.

Mechanism, Metallurgy, Hydropower and

Light Industry?

Be ingredients of heat insulation glass, mineral wool and porcelain products etc.

Other Aspect

?

Be packing materials of exquisite products and pollution products; Be abradant material of gem,colourful stone,glass products; Be density regulator of explosive, treating-agent of sewage.

Trademark:?

SWT

Origin:

hebei?,china

Characteristic:?

Long Time Materials

Sample:

The sample is free of charge within 500g

Quality Control:

manufacture by certificate of quality, Or by CIQ (or SGS) inspection.

Price and other terms:

Please contact us to negotiate and confirm.

Packing:

25kg/bag or as to the demands of the clients

Website:

http://www.sjzmining.com

Export Markets:?

North America, South America, Eastern Europe, Southeast Asia, Oceania, Mid East, Eastern Asia, Western Europe