How to Spray Paint Metal Filing Cabinets

Spray painting metal filing cabinets can give old, worn cabinets a fresh new look. With some simple preparation, high quality spray paint and proper technique, you can achieve a smooth, professional-looking finish. This comprehensive guide will walk you through the entire process from start to finish.

Introduction

Spray painting metal filing cabinets is a relatively easy DIY project that can completely transform the look of your office or workspace. With some time and effort, you can give battered old cabinets a modern, stylish look for a fraction of the cost of buying new ones.

Properly preparing the cabinets and using high quality spray paint suited for metal will help ensure the paint adheres perfectly and provides long-lasting durability. Following some basic techniques like spraying in steady back-and-forth motions and applying multiple thin coats will result in a flawless, streak-free finish.

This guide covers everything you need to know to successfully spray paint metal filing cabinets, including:

• Supplies needed
• Preparing the surface
• Choosing the right spray paint
• Setting up a spray paint area
• Applying primer
• Spray painting techniques
• Applying top coat for protection
• Safety tips

By the end of this comprehensive guide, you’ll have the knowledge and confidence to take on this rewarding spray painting project. Let’s get started!

Supplies Needed

Spray painting filing cabinets doesn’t require a ton of supplies, but having the right tools and materials is key to achieving professional results. Here’s an overview of what you’ll need:

• Paint stripper or sander – To remove any existing paint/finish so the new paint adheres properly
• Cleaning supplies – Rags, mineral spirits for degreasing, tack cloth
• Primer – Specially formulated for metal
• Spray paint – Specifically made for metal cabinets
• Paint sprayer – For the best results
• Drop cloths – To protect floors and surfaces from overspray
• Painters tape – For clean edges and masking off areas
• Sandpaper – Fine grit to smooth between coats
• Face mask – For protecting from paint fumes
• Disposable gloves – To keep hands clean

In the next sections we’ll look at these supplies in more detail and provide some specific product recommendations.

Preparing the Surface

Proper preparation is crucial for ensuring the new spray paint adheres properly. The goal is to completely strip the old paint and create a bare, clean surface for painting.

Here are the key steps:

Remove Existing Paint

If your cabinets currently have chipped, damaged or faded paint, it all needs to be completely removed down to the bare metal. There are two main ways to do this:

Paint stripper – Look for a paint stripper formulated for metal that you brush on. The chemicals will bubble and lift the existing paint so you can scrape it off. Be sure to work in a well-ventilated area.

Sander – A random orbital sander with 80-120 grit sandpaper will make quick work of removing paint and rust. Be sure to wear a protective mask to avoid breathing in paint particles.

Sand and scrape away all existing paint, coatings or rust spots until only smooth, bare metal remains.

Clean the Surface

Once stripped down to the metal, the cabinets need to be thoroughly cleaned before painting:

• Wipe away all paint stripper residue, dust and debris with mineral spirits or denatured alcohol on clean rags.
• Use a degreaser to clean away any oily fingerprints or dirt. Scrub with a scouring pad if needed.
• Rinse with clean water and let the cabinets fully dry.
• Wipe down with a tack cloth right before painting to pick up any remaining dust.

The surface must be completely clean and dry for the primer and paint to properly adhere.

Sand Glossy Areas (Optional)

If there are any glossy spots of old paint remaining, scuff sand them with fine 120-150 grit sandpaper. This will dull the sheen and give the new paint something to grab onto.

Thoroughly wipe away all sanding dust with a tack cloth when complete. Now the filing cabinets should be prepped and ready for priming.

Choosing the Right Spray Paint

With the cabinets prepped for painting, it’s crucial to choose a spray paint specifically formulated for use on metal. The right paint will adhere tightly to the metal surface and provide maximum durability.

Here’s what to look for when selecting metal spray paint:

• For metal surfaces – Ensure the can states it’s intended for metal, such as a “Direct to Metal” paint.
• Gloss, semi-gloss or satin finish – Depending on if you want high shine or a subtle sheen. Matte finish tends to show imperfections.
• Enamel paint – Enamel paints provide the most durable finish on metal filing cabinets.
• Weather resistant – Since file cabinets tend to live indoors, look for “indoor/outdoor” or “all-weather” paint that is extra durable.
• Color options – Most brands offer a wide array of color choices from neutrals to bright colors.
• Primer included – Many metal spray paints have built-in primers for convenience. More on primers below.

Some top-rated spray paint brands for metal filing cabinets include Rust-Oleum, Krylon, Montana and Valspar. Consult with the local hardware store for brand and color options.

Should You Use Primer?

Most quality spray paints for metal already include primers, which help the paint bond tightly. But for the most durable finish, consider applying a separate metal primer before painting.

Using a primer provides extra corrosion resistance and gives the topcoat paint an optimal surface for maximum adhesion. This helps prevent chipping or peeling later on.

Look for a primer specifically made for metal such as Rust-Oleum Automotive Metal Primer. Follow the product directions for proper application.

Okay, you’ve prepped the surface, now let’s talk about setting up an optimal spray paint area.

Setting Up a Spray Paint Area

Spray painting is best done outdoors or in a well-ventilated area due to the paint fumes and overspray. Here are some tips for setting up:

• Work outside on a day with mild, dry weather if possible. Avoid windy days.
• If working indoors, open windows and use fans to circulate fresh air.
• Cover any nearby surfaces like walls or floors with a drop cloth. Tape plastic sheeting around the work area.
• Use cardboard or more drop cloths to completely cover the floor area.
• Have all supplies easily accessible – don’t be fumbling for items with wet, painted hands.
• Wear old clothing to avoid paint splatters on your nice clothes.

The better prep you do of the work area, the smoother the actual spray painting process will go. Now let’s get to spray painting!

Applying Primer

If you’ve opted to use a separate metal primer, follow these steps to apply it:

• Shake the primer can vigorously for at least 60 seconds to mix the contents.
• Hold the can 6 to 8 inches from the cabinet. Apply a light, even coat using steady back and forth motions.
• Work in sections starting at the top and one side, spraying across and moving down. Overlap passes slightly.
• Let the primer dry completely according to the manufacturer’s directions. It may take 1-2 hours.
• Once fully dry, sand any drips or rough patches with fine 220 grit sandpaper until smooth.
• Wipe away all sanding dust with a tack cloth.
• Apply a second, light coat of primer and allow to fully dry before spray painting.

The primer provides the ideal foundation for the paint to adhere to. Now we can move on to the fun part – spray painting on the color!

Spray Painting Techniques

With your workspace prepped and primer applied, follow these techniques for flawlessly spray painting the cabinets:

1. Shake the Can

Always shake the spray paint can vigorously for at least 60-90 seconds before use. This thoroughly mixes the paint pigments and ensures even distribution as you spray.

2. Paint in Sections

Rather than trying to paint the entire cabinet at once, work in smaller sections for best results. Start at the top and one side, spraying horizontally across the cabinet.

Work your way down section by section until finished. Let the painted sections dry before moving your drop cloth area over and continuing.

3. Keep the Can Moving

Hold the can 6 to 10 inches from the surface. Press and hold the spray nozzle and keep your arm in continuous motion parallel to the surface as you spray.

Use a steady, back-and-forth sweeping motion 6-12 inches long. Avoid staying in one spot, which can cause drips and sags.

4. Overlap Strokes

As you finish each back and forth pass, overlap the next stroke by 30-50% to create an even coat. Move at a consistent speed.

Maintain this steady overlapping pattern as you spray paint the cabinets. Let any wet paint dry before going over an area a second time.

5. Apply Light, Even Coats

It’s better to apply several thin coats rather than one thick, heavy coat. Thick paint is more likely to drip and takes longer to dry.

Hold the can further away and apply lighter coats for a smooth finish. Adding more light coats creates better results than trying to cover in one pass.

6. Paint Vertical Surfaces First

Always start with the vertical surfaces like the cabinet sides and doors before spraying top horizontal surfaces. This avoids drips running down the sides.

If paint does drip slightly, allow to dry fully and sand smooth before applying the next coat.

7. Remove Drawers and Doors

For best results, remove cabinet doors and drawers to separately paint the frame fronts and sides. This avoids paint build up in grooves that can stick.

Reinstall the doors and drawers after all painted parts have fully dried. Use painter’s tape to mask off hinges and hardware.

8. Watch for Runs and Sags

Applying coats that are too heavy can result in paint sagging and running down the vertical surfaces. Holding the can too close or moving too slowly causes this.

If runs do occur, allow to dry fully and sand smooth before applying subsequent coats. The final coat will hide imperfections.

Those are the key techniques for achieving a flawless spray painted finish. Remember to allow ample drying time between coats per the paint directions. Now let’s look at applying a protective clear top coat.

Applying Clear Top Coat

For maximum durability and easier cleaning, apply 1-2 coats of a clear matte or gloss top coat after the color paint has fully cured. This “seals” the painted finish.

Follow the same spraying techniques applying thin, even coats. The top coat protects the fresh paint from minor scratches and scuffs once the cabinets are back in use.

Safety Tips for Spray Painting

Here are some important safety tips to follow when spray painting:

• Work in a well-ventilated area and wear a protective face mask to avoid inhaling paint fumes.
• Wear gloves and eye protection to prevent skin and eye exposure to chemicals.
• If spraying indoors, shut off all ignition sources like pilot lights.
• Read and follow all safety warnings on the paint products being used.
• Work slowly on stable ladders or scaffolding. Don’t rush the job.
• Dispose of used rags properly to prevent fire hazard as they can self-ignite.
• Keep spray cans away from heat or flames. Never incinerate used spray paint cans.

Following appropriate safety measures will help ensure you complete this project safely.

Frequently Asked Questions

Here are answers to some common questions about spray painting metal filing cabinets:

What Sheen Level Should I Use?

This comes down to personal preference. Gloss and semi-gloss finishes have a shiny, reflective surface. Satin is low luster. Matte has no shine and hides imperfections well. High-gloss looks most like a professional finish.

How Long Does It Take to Fully Dry?

Drying times vary based on humidity level, paint type, and number of coats applied. Most enamels will dry to the touch within 1 hour and can be recoated after 24 hours. Fully curing may take 2-3 days. Always follow the manufacturer’s directions for recoat and dry times.

How Do I Avoid Brush Marks When Using a Paintbrush?

Applying with an airless sprayer provides the smoothest finish. If brush painting, use high quality synthetic bristle brushes, apply in the direction of the metal grain and finish each stroke in the same direction to blend. Thin the paint slightly for better flow and lay off by feathering out the end of each brushstroke.

What Should I Do if it Starts Dripping?

Drips are caused by applying paint too heavily. Stop spraying and allow the paint to dry if drips occur. Once fully dry, use 220 grit sandpaper to smooth drips level with the surface, then wipe clean with a tack cloth before spraying again. Hold the can further away and use lighter coats to avoid runs.

Should I Remove Doors and Drawers Before Painting?

Yes, removing doors, drawers and hardware allows for the easiest access to all surfaces and prevents paint build up. Use painter’s tape to cover hinges and hardware holes during painting. Number pieces to ensure proper reinstallation.

Conclusion

Upgrading tired old metal filing cabinets by spray painting them yourself can give your office or workspace a fresh new look. Follow this comprehensive guide to properly prepare surfaces, use the correct metal spray paint and primers, set up a safe spray area and apply the paint with even coats and proper technique.

Achieving a professional sprayed finish does take some time and effort, but the cost savings versus new cabinets makes it a rewarding DIY project with beautiful results. Just be sure to thoroughly prepare the surface, use high quality spray paints suited for metal and apply multiple thin coats for optimal coverage.

With these tips and techniques, you can successfully transform your old filing cabinets with long-lasting, durable spray paint that makes it look like new again.