Roof-metal-latex-over-oil-primer, to apply latex over oil-based paint, clean the door thoroughly. use 150-grit sandpaper to thoroughly sand the surface (image 1). follow with 220-grit sandpaper to sand the door nice and smooth (image 2).. Apply the sherwin-williams paint and primer to a galvanized roof with a paintbrush or a roller specifically designed for corrugated metal. if crawling around on a metal roof in the hot sun does ..., with the nearly total phase-out of oil-based paint in the u.s. in 2005, the question of whether you can paint latex over oil-based paint is even more perplexing. if a house is old enough, it is inevitable that it will have oil-based paint somewhere since latex paint wasn't introduced until the 1940s..

In order for your new paint to form a good bond with the existing paint, it’s important that the two paints are compatible. don’t apply oil-based paint over latex; but you can put latex paint over oil-based, as long as you prepare the surface properly first., a: you’re correct to assume that it’s generally best to use more oil-based paint—in either an alkyd (made with a synthetic resin binder) or natural oil (such as linseed) formula—to refresh ....

The best paint primer for your project depends on the surface, where it's located, and your preferred dry time. see our top-rated picks here., with primer paint solutions for most surfaces - from drywall to the kitchen and bathroom - kilz® primers help block stains, seal orders and have a mildew resistant finish.. 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).however, you can apply oil paint directly to metal ..., if painting over extensive rust, prime it with a water- or oil-based interior-exterior rust conversion metal primer (available for around $4 to $17 per 10 to 13 ounces in spray or standard cans ....

Description. paint that has lost its adhesion to a galvanized metal substrate (e.g. the surface that has been painted). possible cause. new galvanized metal, a product used to make corrugated sheets, gutters, and downspouts, is usually smooth and is coated with either a layer of oil to prevent white rust or is passivated.