Description
The 3M™ Aerospace Surface Pre-Treatment AC-131 is a high-performance, water-based pre-treatment designed to improve adhesion of organic coatings to metallic surfaces in aerospace applications. Non-chromated and easy to apply via brush, spray, or dip, it reduces labor time and water usage by eliminating the need for scrubbing or rinsing. AC-131 minimizes rivet paint loss and prevents rivet rash, delivering a smoother, more durable coating finish compared to other conversion coatings. Ideal for aluminum, nickel, stainless steel, magnesium, and titanium alloys, this pre-treatment supports compliance with multiple aerospace specifications while enhancing coating performance and operational efficiency. Supplied in 3.79 L gallon kits (2 per case), AC-131 is an essential solution for aerospace manufacturing, repair, and maintenance processes requiring high-quality surface preparation.
