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Maintenance and repair articles.

Cleaning Aluminum Window Frames



If painted, use a solution of mild detergent and
water, or a mild commercial cleaner whose label says it
is safe for painted surfaces. Always rinse off solution.
Wipe off excess water with a dry cloth. Do not use strong
cleaners or scouring powder as these will damage the
paint. If you plan to clean window frames, do it before
cleaning window glass so solution does not spot glass
panes.

Clear or colored anodized aluminum resists
weathering, and can be washed with mild detergent and
water like painted frames. Solvent cleaners can be used
to remove grease spots from anodized frames. Never use
abrasives on either anodized or painted surfaces as they
will scratch it.

Bare, unfinished aluminum gradually weathers and
turns gray. It forms its own oxide coating which protects
it. (A coat of clear lacquer will prevent this.) In early
stages of weathering, washing with soap and water will
restore brightness. If you want to restore brightness
when it has weathered more, stronger cleaners or mild
abrasives will be needed. Test any new cleaner on a
hidden spot to be sure it will work satisfactorily.

Do not clean aluminum if it is too hot to touch, or
if temperature is below 50 F. Always remove all traces of
cleaner thoroughly, with water-rinsing, or, if a
solvent/wax type by wiping. Avoid excessive use of
abrasives which leaves permanent scratches. Badly-
weathered window frames may be washed with soap and
water, rinsed thoroughly, and painted.

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