How to Paint a Concrete Driveway: A Step by Step Guide

Step 1: Prepare the concrete

Here is the honest truth about painting concrete. Nobody has ever stood back and admired a driveway and said what a great job you did on the prep. But prep is the entire project. Get it right and you have a finish that shrugs off a decade of tyres and weather. Get it wrong and you will be scraping it all off in eighteen months.

So give this step the time it deserves. The painting part is the fun bit and it is waiting for you.

1. Strip back the loose stuff. Go at it with a wire brush or sandpaper. If the driveway has been painted before, anything flaking or lifting has to come off. Be ruthless here. Paint will not stick to paint that is already letting go.

   
   

2. Pressure wash the whole slab. This is your reality check. The washer will find every bit of coating you missed and lift it for you, and it tells you whether the concrete underneath is genuinely sound.

   
   

3. Scrub it with soap and a stiff bristle broom. This is the step most people skip and the one that matters most on a driveway. Your car has been parking here for years, quietly leaving oil behind. You may not see it, but the paint will find it. Work the broom over every square metre, especially where the wheels sit.

   
   

4. Hose off every trace of soap. Any detergent film left behind becomes a barrier between your paint and the concrete. Rinse until the water runs clear.

Step 2: Etch the concrete

Why do you need to etch concrete before painting?

Etching chemically roughens smooth bare concrete so paint can grip it. Cleaning alone does not do this, no matter how good your pressure washer is. Without etching, you are painting onto a sealed surface and the coating has nothing to key into.

The target texture is 180 grit sandpaper. Run your hand over it after rinsing. If it still feels smooth, etch again.

How to etch

1. Pour 1kg of Ultra Pave Concrete Etcher into 9L of warm water and stir continuously until it fully dissolves.

   
   

2. Transfer the solution into a plastic watering can for even distribution.

   
   

3. Pour the solution evenly across the driveway.

   
   

4. Look for bubbling. The solution should fizz on contact. If nothing happens, your mix is too diluted, or you are working on a previously painted surface that does not need etching.

   
   

5. Keep the surface wet. Mist with a little water if the solution starts to dry off.

   
   

6. Scrub with a stiff bristle broom to work the etcher into the concrete.

   
   

7. Rinse thoroughly with water. Every trace of the etching solution needs to come off the slab.

   
   

8. Wait until the concrete is completely dry. Do not start painting over damp concrete. Give it a full day of dry weather if you can, and longer in cool or humid conditions. Trapped moisture is one of the fastest ways to undo all the work you have just done.

Step 3: Thin and mix the paint

Why is thinning the first coat so important?

Thinning lets the first coat soak into the concrete instead of sitting on top of it. That penetration is what creates the mechanical bond holding the whole system down. Skip it and you get a film that looks fine on day one and peels under a hot tyre later.

1. Stir the tin thoroughly with a paint mixer so the pigment and binder are evenly distributed.

   
   

2. Pour enough paint for the first coat into a clean bucket.

   
   

3. Add 10% mineral turpentine and mix well. If you are using the water based Ultra Pave Quick Dry system instead, thin with 20% water.

   
   

4. Pour the thinned paint into your tray.

The consistency should be noticeably thinner than paint out of the tin. That is correct.

Step 4: Paint the concrete

1. Cut in all the edges of the area with a brush. Work the paint into the join between the slab and any adjacent walls, gutters or garden beds.

   
   

2. Roll the main area with a large roller on an extension pole, working in manageable sections.

   
   

3. Be generous. Apply enough to cover thoroughly with no thin patches or holidays. The first coat will feel light because it is thinned, so pay attention to full coverage rather than film build.

   
   

4. Wait 16 hours before recoating.

   
   

5. Apply the second coat unthinned. Same order, cut in first, then roll. This coat delivers the colour depth and the semi gloss finish. If you are adding Ultra Pave Topcoat Grip Additive for extra slip resistance, stir it through this coat before you start.

   
   

6. Wait 7 days before driving on it. The coating needs the full cure to reach maximum resistance to hot tyre pick up.

Working conditions: Do not apply below 10°C or above 30°C. Drying slows in cold or humid weather and where heavy film builds are applied.

How much paint do you need?

Ultra Pave Heavy Duty covers approximately 14m² per litre depending on how porous your concrete is. A 4L tin covers roughly 56m² in one coat. Because you are applying two coats, halve that figure when you are estimating. A 4L tin will cover a driveway of around 28m² properly. Measure your slab, allow for two coats, and buy a little more than the maths says. Porous or previously unpainted concrete drinks the first coat.

How do you make a painted driveway non slip?

Stir White Knight Ultra Pave Topcoat Grip Additive into your second coat. It is a colourless non slip additive that adds texture without changing your colour, and it is the answer for any driveway that slopes toward the street, sits in the shade or gets wet regularly.

Applied as directed with the grip additive, Ultra Pave Heavy Duty achieves a minimum P3 slip rating when tested to AS/NZS 4586-2013 Appendix A. Add it to the second coat only, following the label directions, and stir it through thoroughly before you start rolling.

Common mistakes to avoid

• Skipping the etch on bare concrete. The single most common cause of paint failure on driveways.

• Not thinning the first coat. Without penetration there is no adhesion.

• Thinning the second coat. It should go on straight from the tin.

• Painting over oil residue. Degrease properly or the paint will not stick where you need it most.

• Driving on it too early. Hot tyres will lift a coating that has not fully cured.

• Painting new concrete. Give it the full 12 weeks to cure before painting.

Frequently asked questions

Do I need to etch if I pressure wash the driveway first?

Yes. Pressure washing cleans the surface but does not roughen it. Etching creates the profile on smooth bare concrete that lets paint bond properly, and cleaning alone cannot achieve it.

Do I need a primer for Ultra Pave Heavy Duty?

No. Ultra Pave Heavy Duty can be applied to garage floors and driveways without priming. Priming is only required if you use the faster drying Ultra Pave Quick Dry, which must be paired with Ultra Pave Garage Floor Primer to resist hot tyre pick up.

What is the difference between Ultra Pave Heavy Duty and Ultra Pave Quick Dry?

Ultra Pave Heavy Duty is a tough oil based formula. Ultra Pave Quick Dry is a fast drying water based formula. Heavy Duty is the harder wearing of the two. Quick Dry gets you finished sooner.

How long before I can park my car on a painted driveway?

Wait 7 days. Light foot traffic is fine after 4 days, but the coating needs the full week to cure and reach maximum resistance to hot tyre pick up.

Can I paint my concrete driveway a dark colour?

Yes. Ultra Pave topcoats come in a range of bases including Medium Grey, which tints to popular dark colours such as Monument and Woodland Grey.

Can I use Ultra Pave over a previously painted driveway?

Yes, provided the existing coating is sound. Remove all loose and flaking paint, sand back glossy areas, rinse and dry. Test a small inconspicuous patch first and check after 24 hours for lifting or poor adhesion. If you see problems, the old coating needs to come off completely.

Do I need a clear sealer over the top?

No. Ultra Pave Heavy Duty is formulated with DuraTough Technology and does not need additional protection. Ultra Pave Clear Sealer is designed for stamped or stencilled concrete and pebblecrete, not as a topcoat over Heavy Duty.

Can I paint a driveway that slopes?

Yes. Add White Knight Ultra Pave Topcoat Grip Additive to your second coat. It is a colourless non slip additive that builds slip resistance into the finish, which is exactly what a sloping driveway needs.

How do I clean up?

Clean brushes, rollers and equipment with mineral turps immediately after use. Ultra Pave Heavy Duty is oil based and will not wash out in water.

Ready to start?

Find White Knight Ultra Pave Heavy Duty Garage Floor Paint and Ultra Pave Concrete Etcher at Bunnings. For colour ideas and more how to guides, visit whiteknightpaints.com.au.

Always read the instructions and safety information on the pack before starting your project.