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How To Paint Aluminum Siding

Over time, aluminum siding can start to look faded, chalky, or outdated. Instead of replacing it, painting your aluminum siding is a cost-effective way to refresh your home’s appearance and boost curb appeal. With the right preparation and materials, you can achieve a long-lasting, professional-looking finish. Here’s a complete guide to help you through the process.

Step-by-Step Guide To Painting Aluminum Siding

  1. Inspect the Surface
    • Check for dents, peeling paint, mildew, or chalking.
    • Make any necessary repairs before proceeding.
  2. Wash the Siding
    • Prepare a cleaning solution with water, bleach, and TSP (trisodium phosphate).
    • Scrub the siding thoroughly from bottom to top with a soft brush or sponge.
    • Rinse thoroughly with a hose or pressure washer.
    • Allow the siding to dry completely.
  3. Sand the Siding
    • Use fine-grit sandpaper to lightly sand the surface.
    • Remove any remaining chalky residue or rough patches.
    • Avoid heavy sanding to protect the integrity of the aluminum.
  4. Protect Surrounding Areas
    • Place drop cloths over landscaping and nearby surfaces.
    • Use painter’s tape to mask windows, doors, and trim for clean edges.
  5. Prime the Surface
    • Apply a high-quality acrylic bonding primer designed for metal.
    • Use a roller, brush, or paint sprayer for even coverage.
    • Let the primer dry fully according to the manufacturer’s recommendations.
  6. Apply Paint
    • Use 100% acrylic exterior paint for best results.
    • Apply the paint in smooth, even strokes, following the direction of the siding.

Allow the first coat to dry before applying a second coat if needed.

Tools & Materials

  • Pressure washer or garden hose
  • Mild detergent or specialized siding cleaner
  • Soft-bristle scrub brush
  • Fine-grit sandpaper (around 120- to 150-grit)
  • Drop cloths
  • Painter’s tape
  • Bonding primer formulated for metal
  • 100% acrylic exterior paint
  • Paintbrushes
  • Rollers and extension poles
  • Paint sprayer (optional for faster application)
  • Ladder
  • Safety glasses and gloves

Trust PJ Fitzpatrick For Your Siding Needs

Painting aluminum siding is a rewarding project, but it also requires careful preparation and attention to detail. While we currently don’t offer exterior painting, PJ Fitzpatrick is here to help with your other siding needs. Whether you need siding repair or replacement, our experienced team will make sure your home looks its best. Contact PJ Fitzpatrick today to discuss your siding needs and schedule a consultation with our experts.

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