Aquaperl Filtration Media

Aquaperl & Aquaperl+ Perlite Filtration Media's unique property is that it expands up to twenty times its original volume when it is heated to its softening range. This expansion process is caused by the presence of water in the crude rock. When perlite ore is rapidly heated to above 850°C, this water vaporises and causes the softened rock to expand. Tiny glass-like bubbles are produced which account for the light weight and exceptional physical properties of expanded perlite.

It is these light weight glass-like bubbles that are milled and classified under stringent quality controlled conditions to produce perlite filter aids. These perlite filter aids exhibit a unique, jagged interlocking structure with a myriad of microscopic channels affording optimum flow rates and clarities for a wide variety of applications.

Perlite filter aids do not impart taste, colour or odour to liquids being filtered and they are virtually insoluble in mineral and organic acids at all temperatures.

Comparative products such as diatomaceous earth (DE), sand & zeolite are also used in filtration. DE can have high crystalline silica levels.

Because perlite is a GRAS (Generally Recognised as Safe) substance, it can be easily disposed of.