AM.I.G.S13
SkillApply etch solution and conversion coating.
From the FAA library
- Chapter 8: Aircraft Painting & Finishing › Preparation › Surfaces
flows over the aluminum surface. The next step is to apply an acid etch solution to the surface. Following manufacturers’ suggestions, this is applied like a wash using a new sponge and covering a small area while keeping ... When the surfaces are completely dry from the previous process, the next step is to apply Alodine® or another type of an aluminum conversion coating. This coating is also applied like a wash, allowing the coating to contact the surface…
- Chapter 8: Cleaning & Corrosion Control › Corrosion Limits
between dissimilar metal joints in which magnesium alloy is involved, each surface is insulated as follows: At least two coats of zinc chromate or, preferably, epoxy primer are applied to each surface. Next, a layer of pressure sensitive vinyl tape ... thick is applied smoothly and firmly enough to prevent air bubbles and wrinkles. To avoid creep back, the tape is not stretched during application. When the thickness of the tape interferes with the assembly of parts, where relative motion exists…
- Chapter 10: Engine Maintenance & Operation › Cleaning › Removing Hard Carbon
part in a suitable commercial solvent. [Figure 10-3] Extreme care must be used if any water-mixed degreasing solutions containing caustic compounds or soap are used. Such compounds, in addition to being potentially corrosive to aluminum and magnesium ... metal and cause oil foaming when the engine is returned to service. Therefore, when using water-mixed solutions, it is imperative that the parts be rinsed thoroughly and completely in clear boiling water after degreasing. Regardless of the method…