When faced with a metal painting project, it’s important to choose a paint that is specifically designed for painting metal. It can be difficult to find a paint that can adhere to metal, especially one that is eco friendly and breathable, but it is a necessity. Different types of metal will require different application techniques and different types of paint and prep work.
For instance, ferrous metal is metal that can rust while galvanised metal is treated so it won’t rust—both have different needs when it comes to painting them. When painting a ferrous metal, you’ll need to remove any existing rust and prime the metal before painting. New galvanised metal has an oily coating that must be washed off to allow paint to adhere. Older galvanised metal can have a white, powdery oxidation that must be removed prior to painting
In addition to ferrous and galvanised metal, there are items made of metal that have their own sets of needs as well. Wrought iron patio furniture will be exposed to the elements, so should be painted with an eco metal paint that won’t harm the environment and that can handle exposure to sun, rain, heat and freezing. Then you’ve got a whole host of items with special paint needs such as radiators that will need to have specific paints that can withstand heating and cooling.
While all of this sounds daunting, it’s not as confusing as it seems. Simply determine what type of metal you’ll be painting, what state it’s in, and where it’s going to be located. Choosing an eco metal paint is important whether your project will be indoors or out. You’ll want to avoid VOCs (Volatile Organic Compounds) that can have detrimental effects on your health and can also be toxic to the environment if leached into the ground off of an outdoor painting project. Be sure to go with an all natural metal primer as well when prepping surfaces for their coats of paint, otherwise you’ve gone to all the trouble of being eco-friendly for nothing!