Shake a can of spray paint for high-heat surfaces to mix it, and remove the paint cap. Spray the brass portions of the fireplace doors with a light, sweeping motion, applying a thin coat of paint. Let this dry, then apply another thin coat. Add more coats if necessary for coverage.Click to see full answer. Just so, what kind of paint do you use on brass?Most of the paints available that are suitable for brass come in a spray form. However, any acrylic enamel paint should do the trick, regardless of whether it’s a spray paint or a brush-on paint.Beside above, can I paint the brass trim on my fireplace? Fireplace brass trim can be painted to get an instant living room makeover! Paint is the solution to updating your outdated fireplace. You can use spray paint to update the fireplace brass trim and paint the fireplace tile! In respect to this, can I paint my brass fireplace doors? You can darken bright, shiny brass without paint. Dull the shiny finish with fine steel wool, then brush on a commercial brass-darkening product; some are liquids and others are paste. If you want to avoid spraying paint indoors, unscrew the doors from the fireplace surround, and paint them outside, on a tarp.How do you update a fireplace on a budget? Learning to DIY: How to Update a Fireplace on a Budget Add a touch of paint. Gone are the days of design elements such as bold and bright red fireplaces and natural, oak-colored wall paneling and trim. Turn your brick to stone. Add a mantel. Think — and build — outside the box. Accessorize, accessorize, accessorize.