Hydrophobic and hydrophilic fumed silica

From: Barbara Appelbaum <*aandh<-a*> Date: Thursday, November 6, 1997 · aandh<-a

Various bits of conservation literature refer to hydrophobic and
hydrophilic fumed silica.  Are both used as additives to resins?  Is
it correct to assume that the one commonly used in the hydrophilic?
Is it possible that the hydrophobic kind would make a resin into a
better moisture barrier?  Any information on this subject would be
welcome.

B. Appelbaum

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                  Conservation DistList Instance 11:43
                Distributed: Thursday, November 6, 1997
                       Message Id: cdl-11-43-009
                                  ***