The GK-110 perlite filter aid is a kind of whithe solid powder composed of inert amorphous vitreum particle,whose main components are potassium,sodium,and aluminosilicate without peculiar smell and containing no organic substance in itself.Treatment of pearlite by high temparature in the process of production shall be upgraded to the effects of sterilization and elimination of organic substance ,therefore the Gk-110 perlite filter aid with a very low solubility & strong chemical stability in organic acid can not affact the color,smell and taster of the filtrate.And its usage is completely the same as diatomite. Each particle of the particle filter aid is of quite irregular coild lamina and has 80%-90% of porosity whe forming filter cake,because of the interlinked capillary of each particle,it is possible to filter rapidly and moreover is able to catch particles with size of 0.1 micron.