-
Perlite looks like small, white, crystallized popcorn grains.
-
Physically and chemically stationary.
-
The hollow structure of porous particles provides a light, free drainage and well-ventilated product.
-
When heated rapidly to 1600°F (871°C), the water in the raw stone evaporates and opens up in a manner similar to popcorn, forming countless bubbles of staggering light weight.


