an kind of internal honeycomb-like structure ,white granular material, made from perlite ore that after it is preheated and instantaneously expands under high-temperature calcination.

*white granular (internal honeycomb structure);

*nontoxic, tasteless, noncombustible, non-corrosive;

*neutral ph value (ph value: 6.5-7.5);

*acid resistant and alkali resistant;

*light weight, high absorption and insulation capability

sio2:

69-72%

al2o3

12-18%

k2o

3-4.5%

na2o

3-4.5%

cao

0.1-0.2%

mgo:

0.2-0.5%

moisture:

<2%

service  temperature:

-256-800 degree celsius

ph value:

6.5-7.5

loose density:

45-100kg/m3

size:

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

or as request

*lightweight construction insulation board, partition board, acoustic board, fireproof board.

*insulation materials for Industrial Furnaces and tubes

*filtration agent for beer, drinking, food and medicine

*slag collecting material for steel melting and insulation filler for air separator

*filler or expanding agent for rubber, paint, plastic, tnt etc

*soil adjusting agent, non-soil growing substrate, pesticide cleansing agent.