Industrial procedure for the application of a P.T.F.E. film on a

Coating processes – With pretreatment of the base – Etching – swelling – or dissolving out part of the base

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427327, 427365, 427402, 427428, B05D 304

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053385721

ABSTRACT:
A procedure for the application of a polytetrafluoroethylene film on aluminum surfaces by means of mechanical-chemical bonding using a specific compound which, on one hand can adhere to a smooth aluminum surface and, on the other hand, being suitable for producing mechanical-chemical bonding with the P.T.F.E. The aluminum surface is cleaned with an aqueous alkaline solution and the compound applied by a rolling process using four rolling machines.

REFERENCES:
patent: Re22296 (1943-03-01), Shoemaker
patent: 2923640 (1956-03-01), Buckingham
patent: 3243321 (1966-03-01), Rowand
patent: 4028205 (1977-06-01), Dorsey, Jr.

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