How to Clean Galvanized Metal

Galvanized metal is a type of metal that has additives to protect it from corrosion and oxidation. Zinc oxide is added as a thin coat on the galvanized metal to serve as this critical barrier. There are several uses for galvanized metal, but it is mostly used for outdoor purposes. From large sheets of metal to small wood screws, galvanized metal will last longer than regular metal products as they will not rust or corrode.

The protective coating is a great barrier, but the metal still needs to be cleaned. Cleaning the galvanized metal not only keeps it looking new, but also keeps the zinc oxide barrier strong and intact. Here are a few steps to use to effectively clean galvanized metal.

Step One - Rinse  With Water

Before you wash the galvanized metal, simply rinse it off with a hose or some clean water. This will get rid of the large debris and most of the smaller rocks, sand or other minute pieces that can scratch the metal.

Step Two - Wash Metal with Hot Water

In a gallon of hot water, mix in a 1/4 cup of dish washing solution. With a soft bristle brush, begin washing the galvanized metal with small circles. Begin at one edge of the metal and work across to the other side. Repeat this process down the entire metal until the piece is completed.

If you notice that there are some hard water stains on the metal, you can use a solution of water and white distilled vinegar. Apply to the metal with a soft cloth and scrub the stain.

Step Three - Neutralize Alkaline Deposits

To combat any alkaline deposits that may be present on the galvanized metal you can clean it easily with baby powder and milk. Mix a solution of 1 part baby powder and 2 parts milk together. Use a toothbrush, or other small brush, and scrub the surface of the metal.

Step Four - Rinse Thoroughly

Once you have washed to galvanized metal, cleaned off any of the alkaline deposits,  rinse it with some warm, clean water. Rinse it thoroughly so that none of the soapy residue is left. This may take extra rinsing to be sure.

Step Five - Dry with Soft Cloth

It is important to completely dry off the metal with a soft cloth. Go over your work a few times and use two cloths.

Step Six - Apply Wax

To keep galvanized metal shining throughout the years you should be adding some metal polish or some paste wax. Apply directly to the metal with a soft cloth. Rub with very tight circles. Start in one corner and work in small areas at a time. Let the polish dry to a filmy finish and then buff with another clean, soft, lint free cloth. Repeat the process until the entire metal is polished. You will notice that some of the smaller scratches are also filled in and have disappeared.