Painting isn’t as simple as it seems. There’s more to it than just slathering some paint on a surface. You have to consider other factors, such as whether you’re painting for indoor or outdoor use, the type of surface you’re painting on and the colour and finish you want for your paint. What you think you know about painting isn’t always applicable.
Let’s take metal surfaces, for example. Some may make the mistake of approaching a painting project involving metal in a similar way they would with plasterboard. But in reality, painting metal surfaces requires its own process. And we’re here to break it down into a simple and easy to follow guide.
Preparing the Surface
If you want the paint to really last, you can’t just directly apply the paint to the metal. You need to prep it first so the paint can adhere to the metal. By preparing the metal surface, you can prevent coating failure and maximise the paint’s coating life.
The level of preparation involved could depend on the type of metal and its condition. If the metal surface still has peeling paint on or has rust, you’ll need to remove that first. You can do so by using a scraper or a wire brush. If you’re working with a larger surface area of rust, an abrasive blaster may come in handy.
After removing the rust and peeling paint, it’s best to apply a rust inhibitive primer. This primer penetrates the metal’s surface, preventing water-based coating and moisture from getting into the corroded zones. Also, make sure you get the right type of rust inhibitive primer for the type of metal you are using since some metals require specific types of primer.
Choosing the Right Paint
There are a lot more factors to consider when choosing paint aside from the colour. Since paint doesn’t adhere to metal surfaces as well compared to other materials, you can’t use just any kind of paint. It must be a paint that is formulated for metal.
These types of paints are designed to protect the metal from corrosion, water, abrasions and chemicals. It’s best to look for industrial water-based alkyd paint or latex since these are ideal for high-use environments and changing climates.
You can apply paint on metal using different methods. The best method to use often depends on the type of metal, its size and the location of the metal surface. Some of these methods include air sprayers, airless sprayers, rollers and brushes.
Air sprayers are often used when you want to achieve a smooth finish. On the other hand, airless sprayers are best used for large industrial projects since they’re more efficient and can prevent over-spraying. When spraying is not feasible or an area is hard to reach, rollers are ideal. And brushes are best used for small and detailed painting projects.
Since paint won’t stick as well on metal as it does on other surfaces, you’ll need to take a different approach. First, you must prepare the surface by removing any rust or peeling paint. You should also apply a rust-inhibitive primer on the surface before painting it. Make sure you use paints formulated for metal and can provide a protective coating for the surface. And when applying the paint, you have the option to use sprayers, rollers or brushes.
Give your metal building a nice, protective coat of paint with the help of The Brilliant Group. We are professional painters that offer residential and commercial painting services for North Queensland. We are capable of restoring any painted surface, reconditioning office spaces, creating unique features, repainting eyesores and so much more. Contact us today to get started!