AUSPERL Perlite Filter Aids are produced in a full range of grades to economically meet the flow rate and clarity requirements of almost every industry.
Perlite is a generic name for a naturally occurring siliceous volcanic rock. A unique property of perlite is that it expands up to twenty times its original volume when it is heated to its softening range.
This material exhibits a unique, jagged interlocking structure with myriads 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. Solubility in strong alkalis varies depending on temperature and contact time.
One 15kg bag of perlite can adequately replace one 20kg (or 50lb) bag of diatomaceous earth. Please contact us for information on the best grade to use in your application.
**NOTE: IF YOU WANT TO COLLECT FROM OUR AUCKLAND FACTORY, PLEASE SELECT ‘AUCKLAND’ AS THE CITY IN THE CALCULATE SHIPPING SECTION