How to paint galvanized steel

How To Paint Galvanized Steel

If you have ever attempted to paint a galvanized metal surface, you know that it does not work well. The main point is that paint will not cling to galvanized steel. The layer of zinc ported on the metal after the process of galvanization is to reduce corrosion, but it always rejects paints, causing it to shed or peel. So how to paint galvanized steel correctly?

How to Paint Galvanized Steel

Luckily, there is a solution. You can add a coat of paint to your galvanized metal as long as you have some household tools & you follow these simple steps: 

  • Clean the surface: The aim is to remove dust, dirt, or other crude buildups that could affect the texture of the metal surface. No matter what type of material is, it’s hard to implement a proper coat of paint if you are brushing particles & bits. 
How To Paint Galvanized Steel
Clean the surface of Galvanized Steel
  • Introduce your secret weapon: The confidential to painting galvanized steel is white vinegar. If you have a kitchen, then you will have a handy solution. White vinegar is effectual & non-toxic, it is safer to use than your average industrial solvent. You just have to do is to apply the vinegar to clean clout & then wipe down the galvanized surface. The acidity of the vinegar will be reacted with the metal, handling the surface to promote paint adherence. 
white vinegar
White Vinegar
  • Choose your paint: You may or may not need to paramount the surface depending on the type of paint you choose. Few people use acrylic latex paint, which is not designed particularly for the galvanized material, so you will want to paramount the surface before painting. Paints that are made of galvanized surfaces will need less prep work & adhere better than other kinds of paints. Do not use an oil-based primer or alkyd-based paints. 
Galvanized Steel paint
Galvanized Steel Paint
  • Paint away: Now that your surface has been primed & you have all the functional tools. It’s time to paint, the process of painting is straightforward because the surface of galvanized steel is comparably consistent & smooth.
How To Paint Galvanized Steel


1. What kind of paint do you use on galvanized steel?

Ans: The painting process of galvanized steel is very simple and inexpensive. The selection of the correct paint depends upon the surface of the galvanized steel and its surrounding atmosphere. Any latex-based primer followed by standard latex is best suitable for galvanized steel. You can also use Rust-Oleum and Chalkboard paint on galvanized steel.

Alkyd-based and oil-based paints lead to poor gripping and shedding, so it is better to avoid these paints on galvanized steel. 

2. Can you paint over galvanized steel?

Ans: Yes. There are a few steps that you need to follow to paint over any galvanized steel. 
● Clean the metal surface with a solution of ammonia and water.
● Apply metal primer.
● Select the appropriate paint for the galvanized steel and apply it twice.

3. Do you need to prime galvanized metal before painting?

Ans: The process of applying prime before painting depends on the surface of the galvanized metal and the type of paint you choose. You will need to prime the metal surface if you choose any paints which are not designated for galvanized metals, e.g. Acrylic Latex Paint. Otherwise, not necessary.

4. Will Rust-Oleum paint stick to galvanized metal?

Ans: Yes. You need good preparation so that the Rust-Oleum paint sticks to galvanized metal easily. Rust-Oleum paints are corrosion-resistant and it also provides outstanding adhesion and maximum durability on any galvanized metal.

5. What is the best primer for galvanized metal?

Ans: Rust-Oleum 3202 Galvinoleum Primer and Micaceous Iron Oxide (MIO) Primer are the best adhesion primers for galvanized metal that imparts smoothness and high durability.

6. Can I use chalk paint on galvanized metal?

Ans: Yes, you can use latex chalkboard paint on galvanized metal. 

7. How long does it take for galvanized steel to rust?

Ans: The corrosion resistance of the galvanized steel depends on environmental conditions like moisture, humidity, and air pollutants. On average, galvanized steel lasts for about 50 to 70 years.

8. Will vinegar rust galvanized metal?

Ans: Yes, Vinegar can rust galvanized metal. In a normal state, Vinegar contains 5-8% acetic acid and thus it speeds up the conductivity of moisture around the galvanized metal. Vinegar with oxygen increases the movement of both ions and electrons; hence makes rust occur more quickly. 


We hope that we’ve cleared all your queries related to how to paint galvanized steel. It’s time to implement the instructions given above & finally get the result of all the hard work efforts. For any more queries, you can drop the text in the box given below, we’ll come back instantly to you. See you in our next article. 

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