How to Remove Paint From Metal

You have been looking at that faded metal chair on your deck for a few weeks now and finally decided it’s time to either paint it or replace it. You’re leaning towards painting it, but aren’t confident about the best way to get it done. One of the biggest roadblocks to refreshing old metal items is removing the old paint from them.

Different Approaches for Different Types of Finishes

Before taking on your next DIY paint removal project, you need to know what type of metal and finish you're working with. Different finishes—such as galvanized, powder-coated, or anodized—require different approaches to safely and effectively remove them without damaging the metal surface underneath.

For example, galvanized metal has a layer of zinc to prevent rust, meaning that harsh chemicals and abrasive solutions will likely strip away the protective coating and cause the metal to rust. In these scenarios, gentler methods like heat guns or baking soda solutions can get the desired results without getting hurt or damaging your property.

Before You Get Started: Safety First

When handling paint, safety should be a top priority, and each method of paint removal comes with its own set of risks. Equip yourself with the right gear for the job and keep a few safety considerations top of mind when starting a new project.

• Goggles: No matter what method you choose, it's a good idea to wear safety goggles. Shield your eyes from dust, debris, and chemical splashes.
• Gloves: Heavy-duty gloves are also a must-have if you plan on using a paint stripper or heat gun. A good set of gloves will protect you from chemical reactions and burns.
• Ventilation: If you're working with chemical paint strippers, ensure the area is well-ventilated. Minimize exposure to harmful fumes. If possible, work outdoors or in a garage with the door open.
• Respiratory Protection: If sanding or grinding is involved, wearing a mask or respirator can prevent you from inhaling fine particles or harmful dust.
• Fire Safety: When using heat guns or angle grinders, keep flammable materials away from your work area. Have a fire extinguisher nearby, and avoid working near open flames or ignition sources.

4 Ways to Remove Paint from Metal

Strip paint from metal surfaces using four effective ways.

Using Baking Soda

Baking soda is a cleaning agent that is commonly used throughout many homes. What you may not have known is it can also be used to remove paint from metal.

To remove paint from smaller metal items, combine water with baking soda in a 16:1 ratio (1 qt water with ¼ cup of baking soda). Bring the solution to a gentle boil and place your metal item in the solution for 15 minutes.

Once the item has been submerged for at least 15 minutes, remove it. You should be able to remove any remaining paint relatively easily. Using a common household cleaner like baking soda to remove paint from metal may raise the question, will vinegar remove paint from metal? Yes, it will. In fact, you can substitute vinegar for baking soda and achieve similar results.

Use this method for: Small items like door hinges and metal tools.

Using a Paint Stripper for Metal

If you have an item that is too big to boil, a paint stripper is a more viable option. Paint stripper can be purchased at your local hardware or home improvement store. You can apply using either a brush or a rag.

Use this method for: Larger items, outdoor pieces, spray paint, and fixed installations.

Using a Heat Gun

Another effective method for removing paint from metal is with a heat gun. Applying heat to the metal surface should help you remove the paint with minimal effort. When the paint is heated, it should begin to crack and peel. As this happens, use a scraper or wire brush to remove the peeling paint from the metal surface.

Once the old paint has been removed, do not attempt to apply a new coat of paint until the metal surface has cooled completely.

Use this method for: Small to medium-sized items and for targeting specific areas on larger pieces.

Using an Angle Grinder

One of the quickest and easiest methods to remove paint from metal is with a grinder because the machine will do most of the work for you.
A variety of different grinder attachments can get the job done. A wire wheel is very effective, but will also throw off the most debris. Therefore, it’s best to start with a less aggressive method. To start, try using a flap disc, which is available in a variety of different grits (abrasiveness). Once you get started, you can always change to a coarser grit, or wire based on results.

Use this method for: Large, sturdy surfaces. This method may not be suitable for detailed work.

Why Five Star Painting?

When it comes to larger exterior house painting projects, you want to partner with an experienced team you can trust. At Five Star Painting, we are backed by the Neighborly Done Right Promise™, which means we ensure your satisfaction. Plus, all of the work we do is also covered by our two-year warranty for added confidence.

Get Started Today!

To learn more about our services or to request a free estimate, give us a call or contact us today! Your metal items have the potential to shine again, and we’re ready to make that happen.

This article is intended for general informational purposes only and may not be applicable to every situation. You are responsible for determining the proper course of action for your home and property. Five Star Painting is not responsible for any damages that occur as a result of this blog content or your actions. For the most accurate guidance, contact the Five Star Painting location nearest you for a comprehensive, on-site assessment.