Anyone who has spent time around a paint shop has seen it: a rotary buffer held a little too long over a row of rivets, and the paint on the rivet heads is gone. Rivet heads stand proud of the skin, so they take the brunt of the pad, and a high-speed rotary builds heat fast.
Aircraft skins are thin, and polishing a whole airplane means hours of working over lap joints, rivet lines, and curved panels. That’s a lot of opportunity for heat and edge pressure to do damage, especially for an owner doing the work in a hangar on a weekend rather than a pro who does it every day.
A random orbit, dual-action polisher changes the equation. Its oscillating motion spreads the work out, runs cooler, and makes it much harder to burn through a finish, which is why many owners and detailers prefer one for aircraft.
Quick answer: The Aero Cosmetics 7424XP-AERO is a Porter-Cable 7424XP dual-action, variable-speed polisher fitted with an Aero Cosmetics 6″ foam polishing pad and quick-release Velcro backing plate (SKU DAP). It has a 4.5 amp AC motor, an electronic variable-speed dial from 2,500 to 6,800 OPM, random-orbit swirl-free action, and weighs 5-1/2 lbs. The modification can be reversed to the standard 5/16-24 threaded spindle configuration. Available on Skyfarer and at Skyfarer Shop.
What you get and what’s different
- Porter-Cable 7424XP polisher. A dual-action polisher with a long record of industrial use.
- Aero Cosmetics 6″ foam pad. Replaces the stock pad, which Aero Cosmetics describes as low-quality and hard to find.
- Quick-release Velcro backing plate. Lets you swap pads quickly.
- Reversible modification. It can go back to the standard 5/16-24 spindle thread accessory configuration.
Specifications
- Motor: 4.5 amp, AC only.
- Speed: Electronic variable-speed dial, 2,500 to 6,800 OPM.
- Action: Random orbit, swirl-free polishing.
- Counterbalance: 6 in. proprietary counterbalance with 6 in. polishing pad.
- Handle: Two-position (left or right) removable side handle.
- Weight: 5-1/2 lbs, compact design with 100% ball and roller bearing construction.
Why a DA instead of a rotary on aircraft
Aero Cosmetics prefers this dual-action polisher with a foam pad over a conventional rotary because it eliminates the risk of burning paint off rivets and warping aluminum from excessive heat. The random-orbit motion keeps the pad moving across the surface instead of concentrating heat in one spot.
Pilot tip: Start at the low end of the speed dial and work up only as needed. Keep the pad flat over rivet lines and lap joints, and stop to have your A&P look at anything that looks like corrosion, cracked paint, or a working rivet.
Pads and polish
Replacement 6″ Foam Polishing Pads are available. Pair it with Polish ALL, Polish ALL Fast-Cut, or Polish ALL Ultra-Finish.
Where to buy
The Aero Cosmetics 7424XP-AERO Dual Action Polisher is sold by Skyfarer Shop. Find it on the Skyfarer marketplace or order directly from Skyfarer Shop. Either link shows the current price. In-stock items ship in 1–3 business days with tracking, U.S. orders over $70 ship free, and most items can be returned within 30 days of delivery.
Frequently asked questions
Is this a Porter-Cable polisher?
Yes. It’s a standard Porter-Cable 7424XP with the pad replaced by an Aero Cosmetics 6″ foam pad and a quick-release Velcro backing plate.
What speed range does it have?
An electronic variable-speed dial from 2,500 to 6,800 OPM.
Can I go back to standard accessories?
Yes. The modification can be reversed to the standard 5/16-24 spindle thread configuration, and it accepts 5/16-24 spindle thread accessories.
How heavy is it?
5-1/2 lbs.
