Coating processes – With pretreatment of the base – Etching – swelling – or dissolving out part of the base
Patent
1992-04-02
1994-04-26
Beck, Shrive
Coating processes
With pretreatment of the base
Etching, swelling, or dissolving out part of the base
427327, 4274198, 427353, 148247, B05D 310
Patent
active
053065263
ABSTRACT:
A method of treating a nonferrous metal substrate such as aluminum with an acid activating agent such as HF followed by treating with an organophosphate or organophosphonate. The treatment provides for improved adhesion and flexibility as well as resistance to humidity, salt spray corrosion and detergents of subsequently applied coatings.
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Gray Ralph C.
Kahle, II Charles F.
Pawlik Michael J.
Pruchal Paul J.
Beck Shrive
Dudash Diana
PPG Industries Inc.
Uhl William J.
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