How to prepare cookie sheet paint:
Things You’ll Need
-Paint thinner (optional)
Wash the cookie sheet thoroughly, especially if you are recycling a used cookie sheet. Remove any cooked-on food particles, scraping where necessary. Your paint job will look messy on top of stuck-on food fr…om years of baking.
Remove non-stick Teflon coating with medium-grit sandpaper. A scraping tool (like a painter’s 5-in-1 tool) might help to flake some Teflon away. Paint thinner can be used to help break it up, but sanding is effective, so it probably won’t be necessary. Use special care to remove all rust; existing rust will continue to destroy he metal.
Brush or spray the primer on the sanded cookie sheet. Primer goes between the metal surface and top coat of paint, bonding the two for more even painting. In an article for Utah State University’s Extension Service, Dr. Leona Hawks, Home Furnishings Specialist recommends reading labels carefully to make sure you have chosen a metal primer because there are different primers used for different surfaces. Metal primers contain additives that inhibit rust development and extend the life of your cookie sheet project.
Allow primer to dry completely and add a second coat if needed.
Choose an oil-based or latex paint to paint over a metal primer. Some metal primers will not accept a latex paint, so an oil-based product may be used. For craft products, brushed-on acrylics or spray paints also work well.