How to Strip a Metal Filing Cabinet
Introduction
Stripping a metal filing cabinet down to the bare metal is a great way to remove old paint and refinish it. With some elbow grease and the right supplies, you can transform a worn-out filing cabinet into a beautiful, polished piece.
Stripping a filing cabinet allows you to take it down to the original metal so you can repaint or refinish it however you like. It removes years of paint, grease, and grime to reveal the clean surface underneath. This ensures the new paint adheres properly for a smooth, durable finish. Plus, you get to customize the look by choosing any color paint you want.
Stripping a metal filing cabinet isn’t too difficult, but it does take time and effort. This guide will walk you through the entire process step-by-step, from preparation to applying the new finish. We’ll also provide tips to make the stripping process easier and get professional-looking results.
So roll up your sleeves and let’s get stripping! With some determination and the right approach, you can give new life to an old metal filing cabinet.
Gather the Right Supplies
Before starting the stripping process, you need to gather the proper supplies. Having the right tools will make the job safer, easier and ensure it gets done quickly. Here are the stripping supplies you’ll need:
- Paint stripper: Either a chemical or soy-based stripper formulated for metal.
- Stripper brush: A coarse stiff-bristled brush to apply the stripper.
- Paint scraper: A sharp scraper for removing bubbled up paint.
- Steel wool: Fine 0000 grade wool for scrubbing off residue.
- Drop cloths: To protect surrounding surfaces from drips and splatters.
- Cleaning supplies: Such as mineral spirits, rags and scrub brushes.
- Safety gear: Chemical-resistant gloves, eye protection, mask and ventilator.
- Sandpaper: 150-200 grit to smooth metal surface after stripping.
Make sure you have all these supplies ready before starting the stripping process. The right tools will make the job much easier.
Prepare the Metal Filing Cabinet
Now it’s time to start prepping the filing cabinet for stripping. Proper preparation is crucial for achieving the best results.
1. Clean the Surface
Use a degreaser or strong cleaner to scrub the entire cabinet. This removes built-up grime so the stripper can penetrate better. Pay extra attention to heavily soiled areas.
2. Remove Hardware and Labels
Take off all handles, hinges and hardware from the filing cabinet. Also remove any labels or stickers. This prevents damaging them during the stripping process.
3. Fill Holes and Cracks
Use auto body filler, wood filler or epoxy to patch any dents, holes or cracks in the metal. This provides an even surface for painting later. Allow ample dry time based on filler instructions.
4. Scuff Glossy Areas
Lightly scuff any remaining glossy paint spots with 150 grit sandpaper. This helps the stripper adhere to slick surfaces. Avoid removing too much existing paint.
5. Protect Surrounding Areas
Cover any nearby surfaces, floors or walls with tarps and drop cloths. Open windows and use fans to direct fumes outside. The stripper can damage other materials.
Now the filing cabinet is prepped and ready for stripping. Make sure to take safety precautions whenever using chemical strippers.
Apply the Paint Stripper
With surface prep complete, it’s time to apply the paint stripper. Follow all label directions closely to safely and effectively use the stripping product.
1. Prepare Stripper and Supplies
Before starting, assemble all necessary supplies within reach. Shake or stir the stripper thoroughly to mix. Have clean rags, scrapers, brushes, gloves and eye protection ready.
2. Apply a Thick, Even Coat
Use the stripper brush to apply a generous layer over the entire cabinet. Get into corners and crevices. Let it sit for the recommended dwell time.
3. Periodically Reapply Stripper
Once bubbling occurs, scrape off the softened paint with the paint scraper. Reapply another thick coat of stripper to stubborn areas. Allow it to work before scraping again.
4. Scrub with Steel Wool
Use fine 0000 grade steel wool dipped in stripper to scrub off any remaining residue. Rinse the cabinet with mineral spirits to clean.
Applying the stripper takes patience, but following these steps will effectively remove all old paint from the metal filing cabinet. Always wear proper safety gear when using caustic stripping chemicals.
Rinse and Neutralize the Metal
After scraping off the bubbled paint, it’s crucial to properly rinse and neutralize the stripped metal. This removes any lingering chemicals or residue so the new finish adheres well.
1. Thoroughly Rinse the Cabinet
Use a hose or pressure washer to rinse away all stripper residue. Get into corners and tight areas. Mineral spirits also help cut through remaining gunk.
2. Mix a Neutralizing Solution
Create a solution of 1 part white vinegar to 2 parts water. Soak clean rags in the solution. Thoroughly wipe down all stripped metal surfaces.
3. Buff Dry with Clean Rags
Use new dry rags to buff the filing cabinet until completely dry. Proper drying prevents flash rusting before the new finish is applied.
4. Allow Cabinet to Dry Completely
Let the stripped filing cabinet dry overnight before sanding or applying primer. Rushing this step risks trapping moisture under the new paint.
Proper rinsing and pH neutralization is essential after using caustic strippers. It ensures all chemicals are removed so the refinish process goes smoothly.
Smooth and Sand the Stripped Metal
Once fully dry, the stripped metal surface needs smoothing and sanding. This removes any leftover debris and prepares the bare filing cabinet for priming and painting.
1. Inspect for Leftover Paint or Corrosion
Examine the stripped metal closely. Use a scraper, putty knife or wire brush to remove any remaining flecks of old paint or rust.
2. Fill Any New Holes or Imperfections
Use metal filler compound to patch any pits, dents or imperfections revealed after stripping. Allow ample drying time.
3. Sand the Entire Cabinet
Use 150-200 grit sandpaper to smooth and level the bare metal surface. Always sand in the direction of the metal grain.
4. Clean Away Sanding Residue
Wipe down the filing cabinet with a tack cloth to remove all dust and debris. The metal should be completely clean and smooth.
Proper sanding creates the ideal surface profile for maximum paint adhesion. Always wear a respirator when sanding metal to avoid inhaling fine particles.
Prime and Paint the Stripped Cabinet
Now the stripped filing cabinet is ready for priming and painting. Careful prep work leads to a smooth, durable painted finish.
1. Apply Primer Coats
Use a quality metal primer formulated for maximum adhesion. Allow sufficient drying time between coats based on manufacturer guidelines.
2. Inspect for Flaws or Imperfections
Examine the primed cabinet closely and address any flaws revealed after drying. Proper prep leads to a flawless topcoat.
3. Lightly Sand Between Coats
Gently sand the primer with fine 220 grit paper to create a smooth surface between coats. Avoid exposing bare metal.
4. Finish with Quality Enamel Paint
Apply two topcoats of a premium metal enamel in your choice of color. Allow full curing before use.
Patience and proper product selection results in a beautiful, long-lasting finish. Always read and follow all safety and technical directions when painting.
Tips for Easier Stripping
Stripping paint from a metal filing cabinet takes effort, but these tips will make the job easier:
- Work in manageable sections instead of tackling the whole cabinet at once. This prevents the stripper from drying out.
- Use a plastic scraper instead of metal to avoid gouging the cabinet surface. Hold at a 45° angle to peel paint off smoothly.
- Wear chemical-resistant gloves and eye protection. Stripper residues and old paint contain toxic substances like lead.
- Apply a thick coat of stripper. Thin coats dry out quickly and don’t penetrate multiple paint layers as effectively.
- Allow adequate dwell time for the stripper to fully penetrate and bubble the paint—usually 15 minutes to 1 hour.
- Rinse stripped surfaces frequently to prevent chemicals from redepositing and impeding the stripping action.
- Properly neutralize stripped metal to remove all residues. Consider a second vinegary water wash if needed.
- Apply primer within 12 hours after stripping to prevent flash rusting. Brush or roll on primer instead of spraying to ensure maximum coverage.
With the right approach and these handy tips, stripping that old filing cabinet down to gleaming metal is definitely doable. Just be patient and thorough.
Frequently Asked Questions
What is the easiest way to strip paint from a metal filing cabinet?
The easiest stripping method is to use a chemical paint stripper formulated specifically for metal. Apply a thick layer, let it dwell to bubble the paint, scrape off the softened paint and then scrub with steel wool or a stiff brush.
What should I look for when buying a paint stripper?
Seeek a thick, gel-type stripper that clings to vertical surfaces without running off. It should contain benzyl alcohol rather than harsh methylene chloride. Always check that it’s made for use on metal.
How do I know if there are lead paint layers that need special removal?
Paint used before the late 1970s often contains lead. Test kits are available to determine if lead is present. Take extra safety precautions if stripping lead-based paint layers.
What’s the best way to scrape a metal filing cabinet during stripping?
Use a plastic paint scraper held at a 45° angle to avoid gouging the metal. Apply firm downward pressure and peel the paint off in sheets. Avoid abrasive wire brushes that can scratch the surface.
How long does it take to strip paint from a filing cabinet?
Plan on at least one full day for stripping if there are multiple paint layers. Working in small sections allows the stripper to penetrate better. Reapplying stripper and allowing adequate dwell times also improves efficiency.
Conclusion
Stripping a metal filing cabinet takes some effort, but yields beautiful results. Following the steps to prep, strip, neutralize, sand and refinish the cabinet will reveal the clean, original metal underneath. While stripping the old paint layers requires patience and elbow grease, you’ll be rewarded with a revitalized filing cabinet that looks freshly manufactured.
With your newly stripped and refinished filing cabinet, you can either preserve the natural metal look with a clear-coat or choose any paint color you desire. Taking a cabinet back down to its original substrate lets your creative side run free.
So go grab that old metal filing cabinet from the basement or garage and get stripping! In one or two weekends, you can give it new life with a shiny, durable and customizable finish. With the right tools and techniques, anyone can transform a neglected filing cabinet into a beautiful centerpiece.
