All rust must be completely removed or sandplasted down to bare metal. Applying your primer and topcoat should be similar to how you apply paint to trim. The metal will be protected from corrosion and exposure over time. Acrylic Painting on Metal and Sealing your Paint Metal Primers When you want the best results on your metal product, you start with the best foundation — and that means metal primers from Sherwin-Williams. Prime your metal surface to ensure rust inhibition and effective adhesion of your topcoat. The spray paint metal primer is also a great addition to the industry. A metal primer is a product that is painted or sprayed onto metal to prevent corrosion and rusting. The first thing to consider is the type of surface you are going to be painting. Follow the manufacturer's instructions on … Rust-Oleum’s clean metal primer is sold in a half-pint container that covers up to 55 square feet, is ready to re-coat in two hours, and should ideally be topped with an oil-based paint. For painted metals, use AFM Transitional Primer and then AFM Zero VOC paint. It's formulated specifically to prevent corrosion, so epoxy primer won't sand as well as other types, like urethane primer. NOTE: this not recommended for copper or cast iron radiators or any metal that has rust. Our rust-inhibitive metal primers offer fast dry and full cure times to maximize production without sacrificing quality. Krylon K06903907 Rust Protector Primers, White Primer. Also, the primer allows the paint to adhere to the metal surface. How To Choose The Correct Paint Primer. Shop exterior paint and a variety of paint products online at Lowes.com. This is a primer and not a paint. This Spray Paint Flat Primer is no exception. Step #4: Paint the Metal Apart from helping to prevent rust, a primer creates an excellent surface when you need to paint on the metal. Coat the entire item and let it dry according to package directions. You’ll achieve a more uniform finish if you first apply an oil-based primer (e.g., Rust-Oleum Clean Metal Primer, $8.98 per quart on Amazon). And it is a name that you can always trust for quality. Reasons to Use a Metal Primer Find Metal exterior paint at Lowe's today. It is designed for application directly to raw metal and not to painted metal. Primers are made of acids and chemicals that penetrate within the rusty metal. Follow with applying your paint, only if the primer is completely dry. Self-etching primer is ideal for painting metal and creates the foundation needed to bond with the paint. Step #3: Prime the Metal. Epoxy Primer - Epoxy primer is considered a good standard base when it comes to ensuring the auto paint bonds to the metal and promotes a quality paint finish. 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