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We have our own brand name "Light Silica". Filter aids may be applied either as precoat on the septum and/or as body feed in the liquid. As precoat, filter aid can be applied as a thin layer over the filter before the suspension is pumped to the apparatus. A precoat prevents fine suspension particles from becoming so entangled in the filter medium that its resistance becomes excessive. Further, it facilitates the removal of cake at the end of the filtration cycle.
