How to Paint Metal Filing Cabinets

Painting metal filing cabinets can breathe new life into old office furniture. With some preparation and the right materials, you can transform dull, dated cabinets into attractive accent pieces for your home or workspace. Here is a step-by-step guide on how to properly paint metal filing cabinets to achieve a smooth, professional-looking finish.

Introduction

Painting metal surfaces like filing cabinets requires proper preparation and primer to ensure the paint adheres correctly. The steps below outline the materials needed, how to prepare the filing cabinet, apply primer and paint, and finish with a protective clear coat for a long-lasting paint job. With some simple tools and materials from your local hardware store, you can upgrade old metal filing cabinets with a fresh coat of paint.

Steps to Paint Metal Filing Cabinets

Clean and Prepare the Filing Cabinet

• Remove the drawers from the cabinet. This gives you easier access to all surfaces during cleaning and painting.
• Clean the surfaces with a degreasing cleaner. Grease, dirt, and oils prevent paint from properly sticking to metal. Wash all interior and exterior surfaces.
• Sand the cabinet with 220 grit sandpaper. This helps the paint bond to the metal. Focus on any rust spots.
• Wipe away all sanding dust with a tack cloth. Make sure the cabinet is perfectly clean and dry before priming.

Apply Primer

• Use a high-quality metal primer like Rust-Oleum Clean Metal Primer. This provides extra corrosion resistance.
• Before painting, read the manufacturer’s instructions. Shake the can for at least one minute before spraying.
• Apply 2-3 thin coats of primer, allowing proper dry time between coats. Thin coats provide better coverage than one thick coat.
• Primer dries to the touch within 30 minutes but wait at least 24 hours before painting so it fully cures.

Paint the Cabinet

• Choose a high-quality spray paint made for metal surfaces. Opt for satin, semi-gloss, or gloss sheens.
• Shake the paint vigorously for at least one minute before spraying. Follow all can directions.
• Apply in thin, even coats to prevent drips and runs, waiting 10-15 minutes between coats. 2-3 coats are recommended for full coverage.
• Allow the paint to dry for at least 24 hours before lightly sanding with fine sandpaper. This smooths any drips or rough spots.

Apply Protective Clear Coat

• Use a clear enamel spray paint to seal and protect the finish. This adds durability and makes cleaning easier.
• Apply 2-3 thin, even coats following the directions on the can. Allow proper dry time between coats.
• Let the clear coat cure for 48 hours before reinstalling the drawers. The paint needs time to fully harden.
• Optionally, add drawer pulls or labels to complete the look. Enjoy your updated filing cabinets!

Tips for Success

• Always work in a well-ventilated area when spray painting. Wear a respirator mask to prevent inhaling paint fumes.
• Remove doors, handles, and drawers prior to cleaning, priming, and painting for the best results.
• Use high quality primer and paint designed specifically for metal for maximum adhesion and durability.
• Take your time and apply multiple thin coats rather than trying to achieve coverage quickly. Thin coats look best.
• Properly prep and clean the cabinets prior to painting for long-lasting results. Remove all grease, dirt, rust, and oil.
• Use 220 grit or finer sandpaper when sanding metal prior to priming so the paint can properly adhere.
• Let each coat of primer and paint fully dry between applications for smooth results free of drips or runs.

With the right prep work, materials, and technique, it is easy to make old metal filing cabinets look like new with a fresh coat of paint. The transformed cabinets will no longer be dull eyesores, but attractive assets to your décor.

Frequently Asked Questions About Painting Metal Filing Cabinets

What type of paint should be used?

Use high-quality spray paints designed specifically for metal surfaces, like Rust-Oleum or Krylon. Look for paint with satin, semi-gloss, or gloss sheens for maximum durability.

What does primer do?

Primer provides a layer of protection against corrosion and creates an adhesive base coat so the paint properly sticks to the metal. Primer is required for any metal painting project.

How long does painted metal take to dry?

Allow 24 hours drying time between coats of primer. Let paint dry for at least 24 hours before lightly sanding. Give the final clear coat 48 hours to cure before reinstalling drawers and using the cabinets.

How do you get a smooth finish when spraying?

Apply paint in thin, even coats while holding the can 6-10 inches from the surface. Move at a steady pace and avoid letting paint pool. Sand lightly between coats if needed to smooth drips.

What grit sandpaper should be used on metal?

Use 220 grit or finer sandpaper on metal surfaces to rough them up for painting. Anything more coarse can leave deep scratches.

Can metal file cabinets be painted without primer?

It’s not recommended. Primer provides corrosion resistance and allows the paint to properly bond to the metal. Skipping it risks peeling, scratches, and damages to paint down the road.

What temperature should spray paint be applied in?

Ideally spray paint metal filing cabinets when temperatures are between 50-90°F with low humidity for best results. Colder or damper conditions can negatively affect the paint drying and finish.

Conclusion

Upgrading metal filing cabinets with a fresh coat of paint is an easy DIY project with stunning results. Properly preparing the cabinets, applying primer and paint in thin coats, and using high quality spray paint formulated for metal will allow you to take dull old office furniture and give it a brand new, professional-looking finish. With a mix of patience and technique, you can paint metal filing cabinets in any color to match your home or office décor.