3M™ Aerospace AC-131 BB Blue BMS10-128A Type I, Class B, Grade A Spec Surface Pre-Treatment - 100 mL Kit

3M Surface Pre-Treatment AC-131 is a high-performance conversion coating for applications on aluminum, nickel, and titanium alloys. This process is valid on alloys in the following forms: sheet, plate, foil, forging, and honeycomb core. The AC-131 application is applicable for parts subsequently finished with epoxy-based and polyurethane-based organic coatings.

AC-131 provides an excellent solvent-free alternative to achieve the high performance required in aircraft paint applications. The current surface preparation technique such as Alodine® provides acceptable surfaces for coating applications. However, the alodine process produces significant amounts of hazardous waste.

When used with the leading organic primers and topcoats, 3M AC-131 Pre-Treatment provides an economical and environmental alternative to more costly and hazardous processes. 3M AC-131 Pre-Treatment provides equivalent or better wet and dry adhesion performance to that of many of the other surface preparation techniques available. This is true of both OEM and repair/repaint (scuff and sand) applications. 3M AC-131 Pre-Treatment is simply applied to surfaces either by brush, dip or spray on at ambient drying conditions.

Surface Preparation
3M Surface Pre-Treatment AC-131 may be applied after cleaning to a ?water-break free' surface. Alkaline cleaning will usually provide a ?water-break free' surface. Chemical etching and deoxidizing is generally not required. Manual deoxidation can be accomplished by either Scotch-Brite pad abrasion or sanding with #180 grit or finer aluminum oxide sandpaper.