precoating


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precoating

[¦prē′kōd·iŋ]
(engineering)
The depositing of an inert material, such as filter aid, onto the filter medium prior to the filtration of suspended solids from a solid-liquid slurry.

tinning, precoating

Coating a metal with solder or tin alloy, prior to soldering or brazing it.
References in periodicals archive ?
Only clean material is used for precoating to initiate the filter cycle (unlike media used in the granular filter process, which is cleaned and retained).
Over the past decade, SBS producers have changed to higher carbonate levels in the precoating. Numerous SBS mills now run 100 parts 60% < 2[micro] GCC in their precoating.