Cleaning Small Aluminum Parts of Oxidation
aluminum parts on our project M20 after 66 odd years have developed a very
hard dark gray oxidized coating. I
had some rust dissolver from a company in the U. S. Called Eastwood, which
has been effective for rust removal. The label said it was safe for
aluminum, copper, brass, rubber, seals, wood or vinyl. It also removes
bluing and oxide coatings.
I gave the oxidized aluminum a 24 hour soak. When I pulled it out the next
day the dark gray coating was still there but it had taken on a dull
powdery look. Using a small bronze brush the coating came off easily and
the aluminum looked liked it was freshly cast. A 3M abrasive pad also
worked well. The picture shows a cleaned 276 carburetto body and the not
yet cleaned float bowl and cap.
in the states, Iím sure there is equivalent rust dissolvers in Europe, just
make sure it is safe for aluminum.
Mike and Joe Rosson, M20 #39662