Learn How To Spray Paint Plastic the Right Way

Learn How To Spray Paint Plastic the Right Way

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Ashley Poskin
Apr 25, 2017
(Image credit: Ashley Poskin)

Ahh, plastic. The synthetic material we all love to hate—except that we don't. I'm often guilty of spotting a find from across the store, only to realize it's made of plastic and feeling some embarrassment for giving it a second glance. But here's the thing: When it comes to affordability and durability, plastic is awesome, and if you give it a spray-paint spruce-up, it can truly match any decor style. With new spray paints in sophisticated hues designed specifically for coating plastic (I'm looking at you, Liquitex!), you can customize that plastic find into a prized piece.

(Image credit: Ashley Poskin)

If your plastic outdoor furniture has lost its luster after a season exposed to the elements, or if you want to give an old plastic piece a refresh, spray-painting it is the easiest way to give it a dramatic makeover. While this is one of the fastest ways to revamp plastic, there are some important steps you'll need to follow in order to prevent chipping and ensure that your hard work pays off.

(Image credit: Ashley Poskin)

The most important material for this project is going to be your primer. Many different paint brands sell plastic primer, but I chose Rust-Oleum because I've used it many times before with fantastic results. I topped it with Liquitex spray paint, which offers a big selection of pretty hues. Both Rust-Oleum and Liquitex confirmed that their products work well together, but see the test below to determine whether your primer and paint are compatible. If they pass the test, you're free to mix and match between the brands.

What You'll Need

Materials

Instructions

(Image credit: Ashley Poskin)

For our paint test, we started with two already fab Eames-style chairs ($112 for the set of 2!) from Hayneedle, but we wanted to spice things up a bit with some interesting hues and color-blocked designs. The image above shows what the chairs looked like before we got to work on them. Order your own set and dress them up with any colors or designs you like.

(Image credit: Ashley Poskin)

1. Start by wiping down the plastic surface with mineral spirits or rubbing alcohol. This not only cleans the item, but it also helps to break down any sealants that may have been used on your brand new item. After completing this step, wash the piece with a wet rag and let it air dry.

(Image credit: Ashley Poskin)

2. Using a fine-grit sanding block, lightly sand the surface to a dull finish. This will provide some texture so the primer will stick. After sanding, dust the surface using a dry brush (a large paint brush works great!) to clear away the debris and wipe the surface with a wet cloth. Let your object dry completely before moving on to the next step.

3. Apply the plastic primer according to the directions on the back of the can. Rust-Oleum recommends applying one thin coat, rather than one heavy coat or multiple coats, and shaking the can as you spray.

(Image credit: Ashley Poskin)

4. Apply the spray paint according to the directions on the can. If you're painting furniture or something that will get a lot of use, give it about 3 to 4 coats, letting dry between applications.

If creating a color-block design: Apply tape to create a design, and use plastic to cover any area you don't want to be sprayed with the first color. Let dry completely before covering over the first color and spray-painting the second. Continue until your design is complete.

(Image credit: Ashley Poskin)

5. Lastly, protect the paint by spraying the entire piece with clear primer. This step is especially important for furniture or other objects that will be kept outside and are subject to the elements.

(Image credit: Ashley Poskin)

Enjoy your freshly painted piece—until you get bored that is, then paint it again!

The paint + primer compatibility test:

When I spoke with an artist expert at Liquitex, they shared with me their trick for determining whether a primer and paint will work well together. Essentially, as long as you have the right primer intended for that specific surface, your paint should stick. Here's how to double-check:

1. On a test patch, spray the primer. Let dry, then apply the topcoat color.

2. When it's completely dry, make a crosshatch with a utility knife (again, you'll want to use a scrap piece or a spot you'll never see on the piece of furniture).

3. Lay a piece of tape over the crosshatch and pull it up. If the paint stays on the surface, congrats—you have a match! If the paint peels up with the tape, the paint and primer probably aren't compatible and won't work for your project.

(Image credit: Ashley Poskin)

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