How Do I Clean My Powerfilm Solar Foldable Solar Panel?

Updated September 22, 2026

Clean a PowerFilm foldable solar panel gently: disconnect it, remove loose debris, wipe the active surface with a soft damp cloth, and let it dry completely before folding or reconnecting it. Avoid abrasive pads, harsh chemicals, pressure washers, and scraping tools that could damage the panel surface, seams, wiring, or connectors.

What You Need

• Clean water
• A soft microfiber cloth or nonabrasive sponge
• A soft brush for loose dust, if needed
• A dry cloth for connectors and storage

Step-by-Step Cleaning

1. Disconnect the panel. Unplug it from the charge controller, battery, or power station. Follow the system manufacturer's shutdown order.
2. Move it to a safe work area. Use a clean, shaded surface. A hot panel can dry water too quickly and leave residue.
3. Remove loose grit. Brush or lift away sand and dirt before wiping so particles do not scratch the surface.
4. Wipe gently. Use clean water and a damp cloth. Work across the panel without pressing sharply into folds or seams.
5. Clean around the edges. Do not soak junctions, connectors, or exposed wiring. Never force water into a connector.
6. Dry and inspect. Allow the panel and fabric backing to dry fully. Check for cuts, delamination, damaged cables, corrosion, or loose connectors.
7. Fold as designed. Do not crease the active cells outside the factory fold lines, and never store the panel while wet.

Can You Use Soap?

If plain water is not enough, first consult the manual for the exact panel. Use only a small amount of mild, residue-free cleaner when the manufacturer permits it, then wipe with clean water. Avoid solvents, bleach, ammonia, wax, petroleum products, and abrasive household cleaners.

How Often Should You Clean It?

Clean when dust, pollen, bird droppings, salt, mud, or smoke residue is visibly reducing the active surface. For occasional emergency storage, inspect the panel before and after deployment and at least periodically with the rest of your backup-power equipment. Panels used near salt water or blowing dust may need more frequent care.

Connector Care

Keep connectors capped, dry, and free of grit. Inspect pins for corrosion or bending. Do not spray cleaner into a connector, and do not reconnect wet components. Replace damaged cables with manufacturer-approved parts rather than improvised repairs.

Cleaning Mistakes to Avoid

• Pressure washing or using a concentrated hose stream
• Scrubbing with a stiff brush or abrasive pad
• Walking, kneeling, or placing tools on the panel
• Pulling the panel by its cable
• Folding it when grit or moisture remains between sections
• Using a damaged panel without inspection

Storage After Cleaning

Store the dry panel in its case in a cool, clean location. Avoid sharp objects, crushing loads, and prolonged exposure to extreme heat. Coil cables loosely and keep the manual, adapters, and compatible controller together.

Browse the current PowerFilm foldable solar panel collection or read our guide to getting the best solar-panel performance.

Bottom Line

Disconnect, remove grit, wipe gently with water and a soft cloth, dry completely, and inspect before storage. When the model manual gives different instructions, follow the manual.