Printech Archives, February, 1998: Re: Catalytic Oxidizers

Re: Catalytic Oxidizers

Wayne Pferdehirt (
Mon, 10 Feb 1997 13:49:43 CST


"Chemistry for the Graphic Arts", GATF, 1992, lists fumed silica as an
extender for white pigments in printing inks (p 231).

Another seemingly improbable but possible source could be dust from a
wheel used for grinding or polishing (e.g., equipment repair?).


> A flexo printer is having trouble achieving destructive efficiency
> with his catalytic oxidizer. He finds his catalyst masked with
> silica, but doesn't know the source of the silica. Any ideas?
> *************************************************

Doreen M. Monteleone,



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