Low temperature seal for anodized aluminum surfaces

Details Low temperature seal for anodized aluminum surfaces Low temperature seal for anodized aluminum surfaces

1986-02-25

1988-11-22

Silverberg, Sam

Metal treatment

Compositions

Heat treating

204 376, C23C 2234, C23C 2256

Patent

active

047863366

ABSTRACT:
This invention relates to a process for sealing an anodized aluminum surface by contacting the surface with an aqueous acidic sealing solution having dissolved therein zirconium and/or titanium and dissolved fluoride, said solution preferably including dissolved silicate and/or a dissolved thiourea compound, and including optionally a sealing auxiliary, the process being carried out at a temperature of no greater than about 40.degree. C.

REFERENCES:
patent: 4148670 (1979-03-01), Kelly

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