Title: Ceramic masking method

Abstract: Heat-resistant masking compositions suitable for use in masking vitreous and semicrystalline ceramic surfaces from coating by liquid-sprayed coating compositions to provide permeation-resistant masks which are readily removable even after high temperature firing are described. The masking compositions comprise bentonite clay and a finely-divided refractory inorganic oxide release agent.

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Inventors: Forker, Jr., Ray B. (Horseheads, NY, US)
Panzarino, Joseph N. (Big Flats, NY, US)

Application Number: 449897
Filing Date: 1974-03-11
Publication_date: 1976-01-13
Assignee: Corning Glass Works (Corning, NY)
Primary Class(es): 427/282 106/2, 427/287, 427/314, 501/127, 501/129, 501/141
Other Classes:
US Patent Ref:

3560236

Feb, 1971

Orta

117/5.

Other Refs:
Primary Examiner: Lusignan, Michael R.
Assistant Examiner:
Attorney: VAN DER Sterre; Kees, Janes, Jr.; Clinton S., Patty, Jr.; Clarence R.