Getting a rusty metal object ready for painting takes a bit of work but it s totally doable.
Best paint for sheet metal.
Topcoat with two coats of a high quality exterior latex paint.
Large cans may be the most cost effective option when painting large linear metal objects such as fences and backsplashes but spray paints e g rust oleum hammered metal finish spray 8 74 for.
Bituminous latex acrylic and vinyl paints tend to adhere well to galvanized metals.
Once the metal has been cleaned and is dry prime it using an exterior multipurpose latex primer or a latex primer that is made specifically for galvanized metal.
You can use either a water based acrylic paint or an oil based paint as long as the container identifies for metal somewhere on its labeling.
Hold the spray paint can 12 to 24 inches 30 4 to 60 9 cm from the surface.
Use the zinc chromate if your shed is made from aluminum or any light alloy.
Elbow grease will do the trick for lightly rusted metal but tougher jobs may require a power sander or chemicals.
Paint can t bond to rust so you ll need to start by restoring the surface.
For best results keep the can parallel to the sheet metal surface and spray in a back and forth motion over the surface.
Patrickaugust 17 2015 at 11 45 pm.
Spray in a quick smooth and even pattern until the surface is covered.
There are generally two types of metal paint primers that you can use on your shed red oxide zinc chromate and zinc chromate.
You first are advised to prepare the surface of the item to be painted so that the paint for galvanized metal stands its best chance of looking good for several years.