Berkeley International is a specialist in sourcing products worldwide.
Our contact for perlite is John Eyton  
 
We have contact with perlite mine owners and processors in several countries.

Perlite is the generic name for naturally occurring siliceous volcanic rock.

New Zealand perlite

New Zealand sourced perlite is of an extremely young age relative to other global resources. This allows for greater expansion and yield nearing the maximum of up to 25 times its original volume when heated to its softening range. Alternately due to its young age, the ore expands with lower energy requirements allowing for more cost effective processing.

The expansion process is caused by the presence of water in the crude rock. When perlite ore is rapidly heated to above 850c this water vaporizes and causes the softened rock to expand. Tiny glass-like bubbles are produced which account for the lightweight and exceptional physical properties of expanded perlite.

We have much more information about perlite from New Zealand. If you wish to have more detail, please contact John Eyton
 
 

 

   
Turkey perlite
We have much more information about perlite from Turkey.

If you wish to have more detail, please contact John Eyton

 
Expanded perlite
Expanded perlite is produced in many countries, including China, Spain , Turkey.

The producers do not al have the same specifications and do not show the specs in the same format

Below are the specifications from a company in China which is about 400km from Wuha,

Expanded Perlite

Character: Non-toxic, flavorless, lightweight, corrosion resisting, neutral PH 6.5-7.5 etc.

Size: 1-3mm, 2-4mm, 3-6mm 4-8mm etc.

Packing: 100L/bag, 730bags/40HQ. 

This is used for specialist processes in the building and construction industries.
 

Expanded Perlite from Turkey. One supplier offers expanded perlite in different grades  and for a variety of end processes

http://www.berkeleyinternational.net/expanded_perlite_Turkey.htm

 

If you wish to have more detail, please contact John Eyton

 
 
 
 
 
 
 
 
 
 
 
Berkeley International                 F-13A-02 Metropolitan Square, Damansara Perdana,              47820 Petaling Jaya, Malaysia Phone  +603 7731 2242

john@berkeleyinternational.net