The present invention provides coating so that the coating for the corrosion protection layer is formed on the rim of the mirror feed provided to the main frame to coat / fixing means is fixed to the mirror in the transfer and transport along the edge of the fixed mirror, as relates to the coating unit of the coating layer a coating apparatus for coating a frame of a mirror coating, the coating unit is the transfer / holding means is sent to the in the upper part of the body frame along the edge of the fixed mirror carried by the transport section in the X-axis Y-axis transfer part and the length in the transverse direction and that coats the coating liquid on the rim of the mirror with a cloud action characterized in that. this way, a coating layer superimposed to prevent corrosion on the rim of the double mirror at the edge of the rim is coated with a coating having a uniform thickness can be made without burden. ;
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