Teledyne Continental Motors, Inc.
TM
Maintenance and Adjustments
IOF-550 Permold Series Engine Maintenance Manual
9-7
1 April 2007
9-2.
Protective Coatings
Protective or anti-corrosive coatings include the following:
•
Alodine
•
Zinc chromate primer
•
Enamel paint
•
50 weight aviation engine oil
Apply a protective coating after any machining or repairing aluminum surfaces with an
aluminum conversion coating. Alodine, also known by the brand name Accelagold, is the
preferred coating to be applied to prevent corrosion on aluminum surfaces as described in
Section 9-2.1.
Treat external aluminum or other metal parts that have areas of worn paint as described in
Section 9-2.3.
9-2.1. Alodine
Apply a protective coating of alodine under any of the following conditions:
•
Parts with aluminum surfaces that have been cleaned, machined, or repaired
•
Aluminum alloy castings
•
Sheet metal
•
Aluminum or metal tubing.
If the original aluminum conversion coating has been removed or deteriorated, it must
be restored.
Apply alodine or Accelagold solution in accordance with the manufacturer's
instructions. For Accelagold, refer to Technical Data Bulletin Number 108-31
Turcoat® Accelagold Aluminum Conversion Coating.
9-2.2. Aviation Oil
Apply clean 50-weight aviation oil to cleaned, steel, machined surfaces that have been
rinsed with a petroleum base solvent. Do not apply oil to surfaces that are painted or
coated with alodine.