How to Spray Paint a Metal File Cabinet

Spray painting a metal file cabinet can completely transform its look, allowing you to create a customized piece that matches your home’s decor. With some preparation and the right materials, it’s easy to get professional-looking results. Here is a step-by-step guide on how to spray paint a metal file cabinet.

Introduction

Spray painting is an easy and inexpensive way to refresh old metal file cabinets and give them an updated, stylish look. It allows you to choose any color you want and provides a smooth, even finish when done properly. The key steps include cleaning and sanding the existing surface, applying primer, spray painting multiple thin coats of color, and protecting the finish with clear sealer. With a little time and effort, you can make an old file cabinet look brand new again through spray painting.

Benefits of Spray Painting Metal File Cabinets

There are many great reasons to consider spray painting your metal file cabinets:

• Cost-effective: Spray paint and supplies are inexpensive compared to buying a new cabinet.
• Customizable: Choose any color that fits your style and decor.
• Durable finish: Spray paint adheres well and dries hard when applied correctly.
• Professional results: With proper preparation and application, the end result will look like it was done by a professional.
• Convenience: Painting cabinets is a DIY-friendly project for all skill levels.
• Fast: Spray painting is much faster than brush painting.

By taking the time to properly prepare the surface and apply several coats, spray painted file cabinets can have a like-new, high-quality finish.

Supplies Needed

Gather these supplies before starting:

• Spray primer
• Spray paint in your chosen color
• Clear polyurethane sealer
• Sandpaper (180 and 220 grit)
• Tarp or drop cloths
• Painters tape
• Rags and paper towels
• Tack cloth
• Rubbing alcohol
• Paint scraper
• Masking tape
• Paintbrush (for corners and edges)

Be sure to select spray paint designed for metal surfaces. Enamel paint works well for a glossy finish. Choose primer and sealer in a matte or flat finish to provide better adhesion.

Step 1 – Clean the Cabinets

Thoroughly cleaning the file cabinets is one of the most important preparation steps. All grease, dirt, residue, and grime must be removed for paint to properly adhere.

Follow these steps to clean:

• Remove the drawers and hardware (handles, hinges, etc). Set aside.
• Wipe down all surfaces with a deglosser or mild solvent to remove any waxes or oils.
• Scrub with a strong cleaning solution like TSP substitute and a scouring pad. Rinse well.
• Use a paint scraper to remove any loose, flaking paint.
• Wipe down again with rubbing alcohol to remove any remaining dirt and residue.

Be sure to clean the drawers, interior surfaces, and hardware as well. Allow to fully dry before moving onto sanding.

Step 2 – Sand the Cabinets

Lightly sanding the cabinets will help the new paint adhere and provide a smooth base. Be sure to sand both the file cabinet box and drawers.

Begin by using 180 grit sandpaper to rough up the surface. Then use 220 grit to smooth away sanding marks.

Focus your sanding on any glossy areas and edges with old paint showing wear. Be sure to sand around rivets and hardware holes. Completely sanding to bare metal is not necessary as long as the surface has been deglossed.

After sanding, wipe down the cabinets with a tack cloth to remove any dust.

Step 3 – Apply Primer

Applying a coat of primer is highly recommended before spray painting the cabinets. Primer helps the paint stick better for a smooth, lasting finish.

Use either a spray primer or metal primer. Follow the manufacturer’s directions for dry time before painting.

When spray priming:

• Shake the can vigorously for 1 minute.
• Hold 10-12 inches away and apply light, even coats using a side to side sweeping motion.
• Let dry fully before a second coat. Two coats of primer are ideal for the best results.

Prime the cabinet box and drawers. Don’t forget the interior surfaces! Now you’re ready for adding color.

Step 4 – Spray Painting

Once primed, you can begin spray painting the cabinets. Be sure you have adequate ventilation and follow the safety guidelines on the spray paint can.

Tips for a professional spray painted finish:

• Use painter’s tape around hinges, edges, and hardware holes. This protects those areas from drips.
• Keep the spray can about 8 inches from surfaces.
• Apply multiple thin coats rather than one thick coat. Let dry fully between coats.
• Start spraying off the surface, then sweep across in even strokes, slightly overlapping passes.
• Work in sections for the best coverage.
• Do the cabinet box and drawers separately for easier handling.
• Spray inside surfaces and hardware separately for a finished look.
• Allow the recommended dry time between coats. Additional coats may be needed for very dark colors.
• Remove painter’s tape immediately after final coat dries.

Taking your time leads to the best looking, long-lasting finish.

Step 5 – Add Clear Top Coat

For extra durability and protection on your freshly painted metal file cabinets, apply 1-2 coats of a clear spray sealer. This helps protect the finish from scratches and yellowing.

A water-based polyurethane works very well as a topcoat for spray painted cabinets. Follow directions for application and dry time.

Now let the paint fully cure before reattaching the hardware and drawers. Enjoy your newly updated, custom spray painted filing cabinets!

Tips for Success

Follow these tips and tricks for getting the best possible results when spray painting metal file cabinets:

• Be sure to properly prep and clean surfaces before priming and painting. This helps paint adhere.
• Lightly sand glossy areas for better primer and paint bond.
• Apply painter’s tape around hinges, hardware holes, and edges for a crisp look.
• Use short, sweeping strokes and keep the can the proper distance from surfaces.
• Work in thin coats, allowing proper dry time between each. Multiple thin coats look best.
• Use flat primer and sealer for optimal adhesion over glossy enamel paint.
• Spray interior surfaces and drawer fronts for a fully finished look.
• Seal your painted cabinets with polyurethane for extra protection and durability.
• Cure the paint fully before reinstalling doors, drawers, and hardware.

Frequently Asked Questions

What type of spray paint works best?

Look for spray paint formulated especially for metal. Enamel, oil-based alkyd, and Rust-Oleum work very well.

How long does it take for spray paint to fully cure?

Most spray paint takes 24-48 hours to fully cure and harden. Do not scrape or place heavy objects on surfaces before fully cured.

Should I remove the hardware before painting?

Yes, removing handles, hinges and hardware allows for easier painting and prevents drips or runs on hardware.

Can I spray paint over rust?

Light surface rust can be primed and painted over. Severe rust needs to be sanded down to remove before painting.

What temperature is best for spray painting?

Ideal conditions are between 60-80°F with low humidity. Avoid painting in direct sunlight or if rain is expected.

Conclusion

Reviving old metal file cabinets through spray painting is an easy, inexpensive way to give them an updated look. With proper preparation, priming, painting technique, and sealing, you can achieve professional results.

The finished product will add a touch of custom style to your office or workspace. Just be sure to allow adequate dry time between steps for a long-lasting finish. Spray painting provides a fun way to upcycle plain metal cabinets into fabulous focal points.