White Metal Paint – Galvanization involves coating metal, usually steel or iron, with a thin layer of zinc to protect it from premature corrosion or weathering. The process is usually carried out in metal sconces built exclusively for outdoor activities such as drainage channels, downspouts or support posts of the fence link chain. Application of the zinc coating often leaves the metal oily or waxy, and therefore resistant to adhesion of the paint. Many galvanized metals are treat with an additional layer of grease or oil that rests on top of the zinc coating. This should be removed using a powerful solvent, such as concentrated mineral spirits, and a non-steel scouring pad. Once the galvanized metal has been treat with solvent, rinse it with fresh water.
To test the adhesion of the metal, apply a small paint stain and allow direct sunlight to cure for at least a week. If the paint, priming and the following layer are applying. If it begins to bubble or shell, additional preparation of the surface is necessary. Any primer and specific metal paint can be use on the galvanized metal, provide that its surface has been properly preparing. Select a primer and white metal paint Behr by the same manufacturer. Failure to do so could result in poor adhesion or peeling once both layers have dried. Follow the directions of the packaging closely. Since the drying times and the frequency of application of the layer varies between the different primers and paints. Depending on the type of metal accessory be painting. Primer and paint are applying with a brush, paint sprayer or roller.
Most sealers are so effective that they prevent both the formation of white rust and the adhesion of the primer and white metal paint home depot. Test for the presence of a sealant by applying an etching of phosphoric acid to a small portion of metal. Unseal metals darken and become rough, while the sealing metal is not affect. This sealant was often remove using a non-steel scouring pad and an extraction metal compound. Thorough rinsing of the metal surface with water is require. Water that does not a grain of the metal signs suitable surface treatment. In some cases, such as a galvanized fence link chain length or a long section of roof channels. Sandblasting the metal surface is more practical or economical than removing the coating and sealant by hand.