How to Re-Porcelain a BBQ Coating

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Refresh the porcelain finish on your barbecue and it will look like new.
Refresh the porcelain finish on your barbecue and it will look like new. (Image: IT Stock Free/Polka Dot/Getty Images)

After years of using a barbecue, a grill can become to feel like a longtime friend that you can't stand to part with -- even though the porcelain coating of your grill begins to break down. Fortunately, you don't need to buy a new grill. High-heat, easy-to-use porcelain spray paint, designed specifically for barbecues, is available at hardware stores. By following a few steps, your grill will look brand new and be ready for many more years of grilling.

Things You'll Need

  • Garden hose and water
  • Plastic trash bag
  • Oven cleaner spray
  • Stainless steel soap pads
  • Rubber gloves
  • Sponge
  • Dish soap
  • Rubbing alcohol
  • Paper towels
  • Stainless steel brush
  • Inexpensive 2-inch brush
  • Brush-on rust remover
  • Fine sandpaper (3 pieces)
  • Metal primer spray paint (with rust protection)
  • 2 cans of high-quality, glossy spray paint made for barbecues
  • Old newspapers
  • One, 2-by-4 (8 feet long) cut in half

Clean your barbecue. Empty the charcoal (making sure it's cool) into a plastic bag and discard. Rinse the barbecue out using a garden hose. Spread newspaper on the grass and place the barbecue on top of the newspaper.

Spray oven cleaner to remove grease from the inside of the barbecue, the grill racks and inside of the lid. Follow directions and allow to sit until the heaviest grease is softened. Scrub the grill racks with the barbecue wire brush. Wipe the inside of the barbecue and lid down with paper towels while wearing plastic gloves. Use steel wool to remove any remaining grease.

Squeeze dish soap onto a wet sponge. Wash the barbecue, inside and out, with the sponge and rinse well. Allow to dry and wipe down with rubbing alcohol and paper towels to remove any remaining residue. Protect the non-porcelain portions of the barbecue from paint over-spray using painters tape and newspaper.

Brush any rust with a steel brush. Sand the barbecue gently, inside and out, including the lid, with fine sandpaper. Spray the barbecue bowl and lid with a high-heat metal primer spray that prevents rust. Allow to dry according to directions.

Spray a light coat of barbecue spray paint to the outside of the barbecue, using even, continuous passes. Repeat on the inside of the barbecue. Allow to dry, according to directions. Repeat this process at least two more times. Apply additional light coats of paint until the barbecue has the professional-looking glossy finish that you desire. Allow to dry.

Lay newspaper on the ground and lay the two 2-by-4s on top of the newspaper about 8 inches apart. Place the barbecue lid on top of the 2-by-4s and apply spray paint, as in Step 5. Turn the lid over and apply spray paint to the top of the barbecue lid. Repeat this process, applying as many light coats of spray paint to the barbecue lid as you applied to the bowl of the barbecue.

Allow the paint to dry thoroughly. After allowing the porcelain to cure for 48 hours, fire up your old friend again and enjoy.

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