How to paint concrete
So you want to paint concrete. Second to water, concrete is the most used material in the world. Concrete is an extremely versatile material, hence why we love it so much! And just because you laid concrete in a shade of grey doesn’t mean it has to stay that way! With a lick of fresh paint, it may as well feel like you have renovated the whole room! Here is our guide on How To Paint Concrete.
How To Paint Concrete
Prepare the concrete
How do I prepare concrete for painting? The first step is to clean the concrete surface thoroughly. Sweep away any dirt or debris. Then with a soap and warm water mix, scrub away any old paint flakes or grime with a wire brush. Make sure there are absolutely no foreign objects stuck to the concrete like vines, moss, gunk or paint. Concrete stains are ok and will be concealed by the paint.
After a good wash, you then need to remove any residual oil or grease. To do this, create a tri-sodium phosphate (TSP) solution with water. TSP can be purchased from any home improvement store, and make sure you follow the packaging for the exact ratio. With a broom, brush the mix into the concrete surface, brushing away any stains, then rinsing with water.
After your cleaned concrete surface has dried, it’s time to repair any cracks. Apply a pre-mixed concrete patch mix in any gouges, cracks or uneven surfaces. Read our blog post here for an in-depth explanation of how to repair concrete cracks!
Seal your concrete
To ensure no moisture comes through the concrete, it’s essential to correctly seal the concrete (if it hasn’t been already). It will also make sure the paint job you worked so hard on isn’t completely ruined! You can purchase concrete sealant from any home improvement store or contact your concrete contractor to re-seal their work. If you’re taking the DIY approach, follow the manufacturer’s instructions.
Priming the concrete
Now you have washed, cleaned, repaired and sealed; your concrete should be ready to paint! Make sure you choose a sunny forecast ahead to paint your concrete to give the surface ample drying time between coats. When purchasing your concrete paint, don’t forget to add concrete primer into your shopping basket. Concrete primer ensures the paint adheres to the concrete correctly. Apply one to two even coats of primer with a paint roller.
Painting your concrete
When choosing paint for your concrete, outdoor paint for concrete and exteriors is your best bet. This kind of paint is formulated to expand and contract as it experiences substantial temperature changes. Apply a thin layer of paint with a paint roller, starting in the corners or top of the wall. Don’t overload your roller with paint! You add more paint in each layer rather than in one go for an even finish. Once your first coat is completed, leave to dry for one day before applying the second coat. You’ll require between two to three coats of paint depending on the specific type of paint and what kind of finish you are looking for.
Once your final layer of paint is on the concrete, leave for at least two days before walking or touching the surface. And there you have it, your comprehensive guide to painting concrete! Check out more advice and maintenance tips for concrete on our Advice page. Happy reading!
Cleaning Your Concrete
One thing we boast about concrete is how easy it is to care for and maintain. That might be why it is one of our favourite materials! And not just ours, but did you know concrete is still one of the most consumed materials in the world? In fact, twice as much concrete is used in construction as all other building materials combined.
What are the benefits of concrete?
- Stain and water-resistant
- Abrasion-resistant when sealed correctly
- Pet friendly
- Easy to clean by sweeping and mopping
- Easy to style and soften with rugs
- Minimal maintenance
- It only requires resealing every few years
Due to it’s low-maintenance, it makes sense concrete is so utilised. But just because it is so straightforward to care for doesn’t mean there is nothing you have to do to keep your concrete as good looking as possible.
We are going to break down the top tips for how to clean concrete we recommend to our clients, whether their concrete is indoor or outdoor. By following these simple and effective maintenance tips, your concrete can last you a lifetime.
Cleaning Concrete Outdoors
- Periodic scrubbing is the best way to ensure your concrete stays in perfect condition. A power washer is the easiest way to remove built-up grime and dirt from concrete.
- Commercial cleaners like bleach or ammonia (not combined) to remove persistent stains.
- Trisodium phosphate (TSP) can be mixed with water and scrubbed into the stained area with a nylon bristle brush.
- Muriatic acid is best reserved for the toughest outdoor stains, like rust or dried grout. Use with extreme caution and protective wear.
Tough stains can require tough chemicals to clean your concrete properly. Please carefully follow the manufacturer’s instructions whenever using these products for your health and safety.
Cleaning sealed concrete indoors is going to require a different approach to outdoor concrete. Sealed and polished concrete will require gentler cleaning work not to ruin the finish of your flooring
Cleaning Concrete Indoors
- Mop and bucket is your best friend when it comes to cleaning concrete indoors.
- Combine water with a mild cleaner, not bleach or ammonia-like substances you may use outdoors.
- We recommend something like Castile soap, dish detergent, generic floor cleaner or stone cleaners.
- Apply and scrub with a mop and rinse with the mop wet with clean water.
How to maintain your concrete
Depending on how much foot traffic your concrete receives will depend on how regularly it should be cleaned and maintained. To reduce the wear and tear on your concrete flooring, introduce rugs and mats into the area of increased use. Having a front door mat will also reduce the amount of dirt and grime coming inside and working its way into your concrete flooring.
When your concrete is being laid, ask the contractor how often it should be resealed and what maintenance schedule they recommend to keep their work in tip-top shape.
By following these simple steps and tips, you can ensure your concrete will keep looking its best.
If you’re unsure whether concrete flooring is right for you, check out another one of our blog posts on the pro’s and con’s to concrete flooring.
How to Repair Concrete Cracks
We love concrete, and we aren’t alone. It is the moved utilised building material in the world. Due to its incredible strength and durability, you don’t have to worry about scratching or denting on concrete.
However, concrete can eventually crack.
Why does concrete crack?
Even when expertly poured, concrete can develop cracks over a long period due to changes in temperature, moisture levels and settling.
When concrete is poured into place, it typically contains more water than is required for the hydration of the slab. As the concrete hardens, it relies on this excess water as it starts to lose hydration and shrinkage begins.
If the concrete is unrestrained, no cracks will develop. But it is virtually impossible to support a structure of any appreciable size without some restraint. How concrete cracks depends on a number of variables, like the rate and amount of drying, tensile strength, tensile strain, degree of restraint and elasticity.
Whilst cracks in concrete are normal and don’t compromise structural integrity, they aren’t pleasing to the eye. Wide concrete cracks typically develop that inverted “V” shape. The method to fixing these cracks is called to “key” in the crack, which forms a mechanical bond. We’ve compiled a list of our go-to concrete crack repair methods to get your slab looking good as new.
What you’ll need: concrete patch mix, trowel, hammer, wire brush, dustpan and broom, hose and rag.
How to repair concrete cracks:
- With a hammer, chisel the crack at the base to widen it
- Dislodge any loose material from the old concrete
- With a wire brush, remove any concrete debris
- Dust away any more debris with a broom or garden hose (or a high-pressure hose if you have one!)
- Dry up the remaining water with a rag and move all dust and grit
- Once the area is dry, prepare the concrete patching mix following it’s instructions
- Using a trowel, put the mix into the crack
- Poke the trowel into the mix to remove air bubbles and move it deeper
- Top up the crack and smooth it back
- Let the mix dry
How is concrete made?
So you’re looking for a concrete supplier in Perth for your next project, maybe you’re wondering what exactly is concrete?
At Midland Mini Crete, we combined years upon years of experience in the concreting business since our establishment in 1991! As a result, we know a thing or two about concrete, and we will break it down for you.
What is concrete?
Concrete is everywhere, from our roads to our floors and our buildings. In an urban environment, it’s virtually impossible to go a day without seeing concrete.
Concrete is made up of water, an aggregate, typically a rocky substance, and a binder, often a Portland cement or asphalt. Portland cement is the universal term used for the type of cement used to make nearly all types of concrete. Once combined, it is a tough substance. Once set and with proper mixing and pouring, it actually gets stronger over time.
It’s used in building thanks to its incredible strength, flexibility, durability and cost-efficiency. Concrete is also naturally water and fire-resistant, so it is one of the most trusted building materials in the world. did you know six billion cubic metres is used of concrete each year? See why concrete the most used man-made material in the world?
How is concrete made?
Concrete is a mix of typically portland cement, aggregate and water, at a mix of:
- 10-15% Portland Cement
- 65-75% Aggregates
- 15-20% Water
Portland cement and water is mixed together to form a paste, then the aggregate (gravel, sand or stone) is added. Once the correct proportions are added, the concrete mixes as the agitator barrel rotate. Now it is ready to be transported to the construction site! As this formula is mixing the aggregates, they bind together, forming a strong substance. This strong substance is concrete!
So what is in cement?
Cement is the binding material used to make concrete. It is called Portland cement as a generic term, much like steel is referred to as stainless steel.
The ingredients for cement are extracted from generally extracted from various natural elements, like limestone, chalk, sand or clay.
Cement is made through combining:
- Iron Oxide
- Calcium Sulfate
- Sulfur Trioxide
If you are still confused on the difference between concrete and cement, check out our blog post on the topic here!
Are you looking for a concrete supplier? No job is too small for us. We can supply batches of ready-mix concrete in loads as small as 0.2m³, and much larger of course! Please give a call on (08) 9250 2322 for a quote.
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How much concrete do I need?
Great question. Before engaging with a concrete supplier, it’s going to be helpful to know how much ready-mix concrete you need.
Whether you are undertaking a large scale commercial build, or doing some small home renovations, at Midland Mini Crete we have you covered as your trusted concrete supplier in Perth. No job is too small for us!
To know exactly how much ready-mix concrete you need, we have a Concrete Calculator to ensure you will get the right amount every time. As long as you have the dimensions of your required concrete area, you can figure out how much concrete you need.
Get out the tape measure.
First things first, to know how much concrete you are going to need, you must have an idea of the dimensions of the space you are working with.
If you are laying a concrete slab, measure the length, width and depth of the area you need filling in metres.
How much concrete do you need for a slab?
Length x width x height = how many m³ you need
This calculation can also be used for square footings and walls.
When it comes to holes, columns or round footings, you will need to calculate the diameter and depth of height required. However, calculating how much concrete is needed for a tube or curb can get a bit tricky, especially if math isn’t your forte.
That is why we have our Ready-Mix Concrete Calculator to help you know precisely how much concrete you need for your pour. We even have a calculation for stairs so that you can stress less about the math and we can get you your concrete sooner.
Through figuring out how much cement you need altogether, our team will know how many bags of ready-mix cement your project requires. We recommend purchasing a slightly higher amount of concrete than estimated to ensure you can get the job done even with a few mishaps.
Our Pre-Mix Concrete Calculator ensures no matter what you are creating; we can decipher how much concrete you need.
Once you have calculated how much concrete you need, contact us for a quote. We can get you your ready-mix concrete in Perth no matter how hard to reach the space is.