Closed Cell Big Density 350kg/Cm3 Expanded Perlite High Strength

• Customization: Available
• Light Weight: Weak Water Absorption
• Pure White Color: Low Impurity
• Model NO.: VMB
• Refractoriness: 800-1400°C
• Apparent Density: 12~96kg/m³
• Color: White
• Diameter: All Size Are Available
• Material: Perlite
• Transport Package: Bag
• Specification: GB
• Trademark: YZSD
• Origin: Henan, China
• Production Capacity: 30000square Meter/Year

Product Description

Perlite, expanded perlite, perlite ore, hoticulture perlite, insulation perlite, construction perlite, heat insulatin perlite, perlite grit, refractory, insulation perlite, perlite insulation, filter, perlite board, perlite ore, unexpanded perlite, thermal insulation, rockwool, vermiculite, insulation product


Expanded perlite divide into closed cell,open cell.
Expanded perlite produce by coal gas furnace and electric furnace.
Welcome to contact us for detail specification and application guidence.


Expanded perlite is a new material with multi applications. Due to excellent characteristics,
Excellent chemical stability,
Low coefficient of thermal conductivity,
Weak water absorption,
Non-toxic, non-smelling,
Excellent insulation properties,
Low bulk density etc.,

Expanded perlite is widely used in many industry areas.
1. Horticultural Applications
2. Construction applications
3. Heat insualtion brick/board etc.
Expanded perlite closed cell is a type of new expanded perlite which heated the big grit perlite in electric furnace and gotten uniform structure and hyaline surface grit, shape in round granular.

Microscope photo of VMB(closed cell expanded perlite):


Microscope photo of open cell expanded perlite:

Chemical Analysis            Physical Properties
SiO2	68-74%        Bulk Density: 80-350 kg/m3
Al2O3	9-14%         Thermal Conductivity: 0.047-0.054 w/m.k
MgO	0.4-0.9%       Water Absorption: 360-480 %
CaO	0.8-1.6%       Refractoriness:1250-1300ºC
Na2O	2.27-3.9%      Max service temperature: 750ºC
K2O	1.67-3.2%
H2O	3.2-5.88%