Aircraft Paint, Corrosion & Rivet-Area Restoration

The aviation problem

Chemical paint strippers expose technicians to methylene chloride, benzene, and other toxic chemicals and generate hazardous waste that requires special disposal. Media blasting embeds grit in lap joints and around rivets, creates airborne particles, and reduces material thickness around critical fasteners. Aggressive sanding has its own failure mode: it can grind down rivet heads, reducing the clamping force the fastener can exert and compromising the joint.

None of these methods let an IA inspect the bare substrate the same shift the coating comes off.

The FeatherPulse approach

A pulsed fiber laser delivers controlled energy that's absorbed by the coating — not the aluminum. The coating vaporizes through three documented mechanisms:

1. Ablation gasification — the coating absorbs energy and vaporizes directly
2. Vibration stripping — rapid thermal expansion breaks the bond between coating and substrate
3. Explosion stripping — trapped air or moisture in the coating rapidly expands, popping the coating off

The exposed aluminum is left in the Ra 0.8–1.6 μm roughness band — the sweet spot for re-coat adhesion. The substrate stays below 120 °C throughout the process.

Validated capabilities

• Control surface paint removal — ailerons, elevators, rudders, flaps
• Corrosion exposure on wing skin lap joints, hinge areas, and around rivets — surfaces that media blasting often hides or makes worse
• Rivet-area work without fretting-fatigue risk — verified at the 5 J/cm² operating point
• Clad-layer preservation — cross-section microscopy confirms the protective aluminum cladding remains intact
• Immediate NDT — no chemical residue, no media to clean up; dye penetrant and magnetic particle inspection can proceed without rinse-down delay

Regulatory context

The technique aligns with AC 43.13-1B (Acceptable Methods, Techniques, and Practices — Aircraft Inspection and Repair) for surface preparation. Aircraft owners and IAs using FeatherPulse equipment track FAA Service Bulletin compliance and repaint cycles through the AdaptAero portal.