Concrete is a long-lasting material for an outdoor patio, but it may be dull and unappealing in the back or front yard. A concrete patio may be painted, but it must be done with care. Painting concrete may provide some unique challenges, but as long as you follow the necessary precautions, you should enjoy a trouble-free patio painting experience that won’t cost you additional time or money.
Cleaning Your Concrete Patio
1. Clear the area. Remove any outdoor furniture, decorations, plants, pots, toys, and any other stuff. A clean surface is required to guarantee that your patio is thoroughly cleaned and painted uniformly.
Tarps should be used to protect plants and landscaping around the patio from cleaning chemicals and water run-off.
2. Concrete cracks should be repaired. With a wire brush, clean out the crack(s). To clean the crack, vacuum or blow away any dust and grime, or use a broom. Masonry crack filler should be used to fill the crack. Depending on the manufacturer, use a scraper or a caulking gun to apply the filler (if necessary). Fill deeper or larger cracks a quarter-inch (six millimeters) at a time. Allow the product to dry between applications as directed on the label. Repair cracks in perfectly dry concrete for the greatest results. If the concrete is somewhat moist, use a blow dryer or heat gun to dry it, then wait 15 minutes. If further water has entered into the crack, keep the concrete dry until it cures naturally. Sand down grout- or concrete-based fillers with fine sandpaper before cleaning the area again. (Avoid sanding self-leveling or latex-based sealants.)
3. Remove any moss, roots, or vines. Remove anything that has grown on the surface of the concrete and, if you have one, spray the patio with a power washer. Remove what you can by hand, sweep the patio, then water it down to remove any additional clumps, dirt, or debris if you don’t have a power washer.
- If you don’t have a power washer, borrow one from a neighbor or rent one from a tool rental business or home and construction shop. A pressure washer will come in handy for washing and rinsing your concrete patio before painting it.
- Spray a broad-spectrum herbicide such as glyphosate (Roundup) at least two weeks before cleaning to remove a considerable quantity of vegetation.
4. The concrete surface should be cleaned. Dirt and grease may be absorbed and trapped by concrete. Scrub the concrete using a product that will pull things out, such as trisodium phosphate, muriatic acid, or phosphoric acid, to ensure it is fully clean and has a new surface for paint to cling to. These materials will also aid in the removal of old paint, which must be removed prior to repainting. These items are not intended to remove old paint.
- Before you begin, go over all of the safety instructions. Many concrete cleaning chemicals need the use of rubber gloves, goggles, masks, rubber boots, and protective equipment by everyone in the vicinity.
- Rinse the concrete to moisten the surface.
- Follow the manufacturer’s recommendations before applying your cleaning solution (acid, trisodium phosphate, or other cleaner).
- Using a firm brush, scrub the concrete.
- If you use muriatic or phosphoric acid, this is known as etching, and it gives the concrete a sandpaper-like roughness that paint adheres to better. Before painting fresh or bare concrete, it should be etched.
5. Clear the surface. A power washer is ideal for removing extra dirt, old paint, and efflorescence, a white salt coating that accumulates on surfaces such as concrete and stucco. If there is any remaining old paint on the concrete, scrape it with a wire brush and power wash until it is gone.
- If you used an acid solution to etch the concrete, add baking soda to neutralize the pH on the surface before washing.
- Make careful to rinse the concrete with water after etching so that no chalky material comes out when you contact it with your fingertips.
Preparing for Painting
1. Check the moisture content of the concrete. Before you begin painting your patio, ensure that the paint will stick to the surface. Because all concrete is porous and collects moisture, if your concrete patio has too much moisture, you won’t be able to paint it until the moisture level is corrected.
- Tape down all four edges of an 18-inch by 18-inch square of aluminum foil or thick plastic, bonding the square to the concrete.
- Wait between 16 and 24 hours. After that, gently remove the square of foil or plastic and inspect the concrete and the square’s underside for condensation or moisture.
- Wait until the concrete is completely dry if it is still moist. Keep sprinklers and garden runoff at bay.
- Continue after the concrete has fully dried.
2. Choose your paint. Because you are painting concrete in an outside environment, any paint will not suffice. Regular exterior paint will most likely fracture and flake off a concrete surface quickly after application.There are various paints that will work for your outdoor concrete patio, including:
- Concrete paints with sealants or waterproofing properties that make the paint resistant to water, salt, oil, and grease. This is an excellent paint option since it is particularly intended for outdoor concrete and is resistant to a variety of chemicals and environments.
- Exterior paints for floors, patios, and porches that are latex, water-based, or oil-based.
- These paints are also a fantastic option since they are intended for outdoor usage and are made to resist foot activity.
- Masonry paints with binders and epoxies added. While it may connect effectively with the concrete, it will not protect it from the weather.
- Garage floor coatings with colorful additives that both protect and adorn.
3. Select a color. Consider the color of your house’s exterior and the color of your patio furniture when deciding on a color for your patio. Bring color samples to the paint shop so you may compare your current décor to your paint options. Don’t be scared to seek assistance from a paint professional!
4. Use a primer if necessary. Instead of the uneven, porous surface of unprimed concrete, a concrete or block primer will provide you with a smooth, level surface to work with. It will also lessen the number of coats necessary to cover your surface effectively.
- If you’re going to use a primer, be sure it’s exterior-grade and concrete-safe. Concrete primers are sometimes known as masonry primers or bonding primers.
- Because primer has a lower viscosity than paint, it penetrates more easier into the concrete substrate. Once absorbed, it forms a binder to which the paint adheres. If you do not apply a primer and there is moisture underneath your patio, the paint will peel right off.
5. Determine how much paint you will need. Once you’ve decided on the kind of paint you’ll use, you’ll need to perform some simple math to figure out how many cans of paint you’ll need to cover the patio surface. Check the paint can or the manufacturer’s website to see how much coverage each can gives, and then compare it to the square footage of your patio.
- Square footage is calculated by multiplying the length by the breadth of the space under consideration. Don’t worry if your patio isn’t completely square or rectangular: all you need is a rough notion of the space you’ll be covering.
- Remember to consider if you intend to apply numerous coats. A primer will lessen the need to apply more than one or two coats of paint.
6. Gather your tools and supplies. Gather all of the painting supplies you’ll need before you begin. A masonry brush, a high-capacity roller, or a texture roller are the finest painting equipment for this. You may need the following equipment:
- Paint and primer (optional).
- A frame and cover for a paint roller
- A palette for painting
- Brush and roller extenders
- Painter’s tape or masking tape
- Brushes that are thick and thin
- Painter’s tarps or plastic tarps
7. Keep your surfaces safe. Line the surfaces contacting your concrete patio with tape, such as deck edges, external walls, doors or windows, and any locations you don’t want to paint. Tarps may be used to cover the ground nearby if required.
8. Choose the appropriate day. Begin painting on a dry day when there has been no rain in the preceding 24 hours and none is anticipated in the long term. The ideal temperature for outdoor painting is about 50 degrees Fahrenheit (10 C).
Painting Your Concrete Patio
1. Apply the primer. Before starting to paint or prime your patio, make sure it is thoroughly dry. Fill a paint pan halfway with primer. Dip one of your thinner brushes into the priming a couple times. Wipe away any extra paint on the inside of the paint tray, and ensure the brush has an equal layer of paint on it.
- Begin by brushing primer along any corners or spots where the patio meets other structures or components of the home.
- Apply primer to the remainder of the patio using a roller or a bigger brush and extender. For equal coverage, apply in two separate directions.
2. Allow your primer to dry. While it should be dry in about two hours, you should wait at least eight hours before painting. However, no more than 30 days should expire.
If you are recycling brushes, rollers, and trays, be sure to thoroughly clean them and allow them to dry before reusing them.
3. Fill the paint container halfway with paint. The tray will make it simpler to uniformly coat your brushes or rollers with paint, making it easier to apply even layers of paint on your patio.
4. Paint the perimeter of your patio. Apply a layer of paint using a smaller paint brush around any corners, joints, or other locations that are too difficult for the roller or bigger brush. To avoid getting paint on neighboring walls, decks, or windows, use the smaller brush to apply paint to any section of the patio surrounding places where you put tape.
5. Put on the first layer of paint. Work your way out from a starting place, such as an internal corner against the house. Don’t paint yourself into a corner or center where you won’t be able to get out without re-painting. Apply a thin, smooth coat of paint using even brush or roller strokes.
- Attach your roller or brush to your extension to allow you to paint while standing. This will assist protect your back, knees, and wrists.
- If you’re using a brush rather than a roller, make sure it’s large enough to cover a broad area so your paint doesn’t dry before you complete a piece.
6. Allow your first coat to dry. Concrete and exterior paints might take six or more hours to cure before being ready for further coats, so follow the manufacturer’s instructions carefully.
7. Apply the required coats. Repeat the previous steps. To finish the coat, use a smaller brush around delicate or difficult edges and a bigger brush or roller. Apply as many layers as necessary to create the appropriate depth of color for your patio. Typically, two or three coatings are necessary.
To guarantee consistent coverage, apply each fresh application in a different direction from the previous one.
8. Allow the paint to dry and cure completely. While you should be able to walk around on your patio within 24 hours, you should wait seven days before reinstalling furniture.
What kind of paint do you use on outdoor concrete?
Because it includes binders that contract and expand with the concrete, masonry paint (also known as elastomeric paint or elastomeric wall coating) is an excellent option for concrete painting. On concrete, exterior house paint might fracture and peel.
Does painting outdoor concrete last?
Most manufacturers recommend applying a fresh coat every 3–5 years, depending on use. Some may endure considerably longer if the area is kept out of the weather or is seldom walked on.
Is it worth painting concrete patio?
Concrete exterior surfaces may show significant wear and tear over time, but a new coat of paint can give a much-needed facelift. The finest concrete paint or stain hides discolorations and traces of damage while also providing a protective layer that extends the surface’s life.
Is painting concrete a good idea?
The Benefits of Painting Concrete
Concrete paints and stains serve to conceal surface discolouration and wear and tear while also extending the life of the concrete by avoiding additional deterioration. Painting a concrete surface may also make cleaning and upkeep simpler.
Do I need to prime concrete before painting?
Priming is so important to effective painting results that concrete will always need one. However, if the current surface is unpainted, it must be primed before painting. It’s flaking off.
Is it better to paint or stain concrete patio?
Choose concrete stain for the utmost in long-lasting, durable color. Because concrete stain does not merely lay on the top of the concrete, but also penetrates into the pores to some extent, your color will not peel, chip, or flake.
Does painting concrete make it slippery?
Once coated, a concrete surface may become extremely slippery, particularly when wet. This is due to the fact that most paints and sealers provide a thin and smooth coating that covers the exterior roughness of the concrete, removing its grip.