How to Properly Wash a General Aviation Aircraft

A Complete Guide for Aircraft Owners Who Care About Safety, Value, and Longevity

Owning a general aviation aircraft is a major investment, and how you wash and care for it directly affects safety, performance, resale value, and long-term maintenance costs. Whether you fly a Piper, Cessna, Beechcraft, Cirrus, or Diamond, proper aircraft washing is not the same as washing a car. Using the wrong products or techniques can permanently damage paint, acrylic windows, de-ice boots, and sensitive aircraft components.

This guide explains how general aviation aircraft should be washed properly, what to avoid, and why professional methods matter.

Why properly wash a general aviation aircraft is Important...

Why Properly Washing Aircraft Washing Matters

Regular, correct aircraft washing does far more than keep your plane looking good:

• Improves safety by maintaining clear windows and windshields

• Prevents corrosion caused by bugs, exhaust residue, and environmental contaminants

• Protects paint and composite surfaces from oxidation and UV damage

• Preserves aircraft value and reduces long-term refurbishment costs

• Supports maintenance inspections by keeping surfaces clean and visible

Improper washing, on the other hand, can cause micro-scratches, window distortion, peeling decals, and premature paint failure.

What You Should Never Use on an Aircraft

One of the most common mistakes aircraft owners make is using household or automotive products. Avoid the following at all costs:

• ❌ Dish soap or household cleaners

• ❌ Automotive car wash soap

• ❌ Pressure washers

• ❌ Abrasive sponges or brushes

• ❌ Paper towels on windows

• ❌ Silicone-based products

These products strip protective coatings, scratch acrylic windows, and force water into seams, bearings, and control surfaces.

The Correct Way to Wash a General Aviation Aircraft

1. Use Aviation-Approved Cleaning Products

Always use aircraft-specific cleaners designed for painted aluminum, composites, and acrylic. These are pH-balanced and safe for aviation materials.

2. Start With a Pre-Rinse (Low Pressure Only)

A gentle rinse removes loose dirt and grit that could scratch surfaces during washing. Never use high pressure near:

• Pitot tubes

• Static ports

• Hinges and bearings

• Seals and antennas

  
  

3. Wash From Top to Bottom

Gravity matters. Start with the fuselage and tail, then wings, and finish with the belly last. This prevents dragging contaminants across clean surfaces.

Use soft microfiber wash mitts and change them frequently to avoid grinding dirt into the paint.

4. Be Extremely Careful With Aircraft Windows

Acrylic aircraft windows require special care:

• Use only acrylic-safe cleaners

• Clean in straight lines, not circles

• Never dry wipe

• Use dedicated microfiber towels only for windows

Improper cleaning is the leading cause of window haze, scratches, and visual distortion.

5. Address Bugs, Exhaust, and Belly Contamination Correctly

Bug residue and exhaust deposits are acidic and should never be scrubbed aggressively. Proper methods include:

• Allowing approved cleaners time to soften residue

• Gentle agitation with soft microfiber

• Specialized belly cleaners for oil and exhaust

This prevents etching and staining of paint and aluminum.

6. Rinse Thoroughly and Carefully

Ensure all cleaning residue is removed, especially around seams, rivet lines, and control surfaces. Leftover chemicals can stain or degrade finishes over time.

7. Dry the Aircraft the Right Way

Air-drying alone can leave mineral spots. The proper method includes:

• Clean microfiber drying towels

• Light blotting rather than dragging

• Optional filtered air blow-drying

Dry Wash vs. Wet Wash: Which Is Better?

Both methods are valid when done correctly:

• Dry washing is ideal for light dust and hangared aircraft

• Wet washing is better for heavy contamination and bug buildup

The key is using approved products and techniques, not cutting corners.

How Often Should You Wash Your Aircraft?

This depends on use and environment, but general guidance includes:

• Light cleaning every 2–4 weeks

• Full exterior wash every 1–3 months

• Immediate cleaning after heavy bug exposure

Aircraft kept on ramps or flown frequently require more frequent attention.

Why Many Aircraft Owners Choose Professional Aircraft Washing

Professional aircraft detailing services bring:

• Aviation-specific tools and products

• Experience with paint, windows, composites, and de-ice boots

• Proper water control and environmental compliance

• Reduced risk of accidental damage

For many owners, professional washing is less expensive than fixing preventable damage caused by improper cleaning.

Final Thoughts

Properly washing a general aviation aircraft is about protecting your investment, improving safety, and extending the life of your aircraft’s exterior. The right products, techniques, and frequency make all the difference.

If you’re unsure whether you’re cleaning your aircraft correctly, or you want professional-level results without the risk, working with an experienced aviation exterior care provider is often the smartest move.

Every flight deserves a clean, protected aircraft.