3M Surface Pre-Treatment AC-131 for Metal Bonding | Non-Chromated Surface Treatment Solution

3M Surface Pre-Treatment AC-131 is a high-performance, water-based surface treatment designed to enhance coating adhesion on metal substrates. As a non-chromated conversion coating, it provides an environmentally friendly alternative to traditional chromate-based treatments while maintaining excellent bonding performance. This product is widely used in aerospace, industrial manufacturing, and maintenance applications, where reliable paint adhesion and corrosion resistance are critical.

Features:

• • Enhances bonding between metal surfaces and primers, paints, or adhesives.
  • Eliminates hexavalent chromium, reducing environmental and safety concerns.
  • Low VOC and safer to handle compared to solvent-based systems.
  • Can be applied by spray, brush, or dip without complex processing.
  • Helps prevent paint peeling, flaking, and rivet rash.

Applications:

Aerospace coating preparation, Metal surface pre-treatment before painting, OEM and MRO (maintenance, repair, and overhaul) processes, Industrial coating systems and powder coating lines.

Additional Documents:

3M Surface Pre-Treatment AC-131 (TDS)

Adhesive Tapes Selection Guide

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