A method for producing weather- and corrosion-resistant shaped sheets
consisting of aluminum or an aluminum alloy with a decorative finish in a
coil coating process that comprises the following sequential steps: an
aluminum strip or aluminum alloy strip is provided; optional continuous
degreasing of the strip; optional electrochemical, chemical or mechanical
burnishing of the optionally degreased strip; the optionally degreased
and/or burnished strip is continuously pre-treated to create a
pre-treated layer that is suitable for use as an adhesive base for a
paint layer; the optionally degreased strip is continuously pre-treated
to create a strip surface that is suitable for use as an adhesive base
for a paint layer; the pre-treated strip is continuously painted with a
sol-gel paint consisting of a polysiloxane to create a first protect
protective layer; the first protective layer is continuously dried and
cured in a continuous furnace; the sheets are produced by shaping the
strip that comprises the first protective layer and cutting the sheets
that are optionally to be further shaped, or by cutting the sheets out of
the strip that comprises the first protective layer and shaping the cut
sheets; the shaped sheets are painted with a sol-gel paint consisting of
a polysiloxane to create a second protective layer and the second
protective layer is dried and cured in a furnace. The shaped parts that
are produced by the method are characterized by excellent weather-
corrosion- and abrasion resistance.