Do you have to seal concrete after pressure washing

Pressure washing is a great choice when it comes to cleaning a driveway. No matter what type of material your driveway is in, there’s always a right way to use the pressure washer to get the job done.

However, the type of material your driveway is made of can change the process quite a bit. For example, if your driveway is made of concrete pavers, there are a few steps you need to follow before using the pressure washer.

Sealing After Pressure Washing

Have you pressure washed your concrete or brick driveway recently in Fort Myers? Not sure whether to seal it after washing or not? Let’s find out.

Concrete is a porous material, which works like a sponge and absorbs everything. This means that if you spill liquid on it, it will easily absorb it. That in itself should answer your question: you need to seal your driveway or it will soak up whatever is nearby. For this purpose, you need an entry sealing service in Fort Myers. It will connect you with professionals who apply a sealer to your driveway, creating a protective barrier on the surface.

What you need to know about concrete

Concrete is a mixture of water, cement and gravel or sand. It must be mixed thoroughly using the correct amount of each material. The mixing processes help ensure that the concrete can be poured and smoothed easily. The mixing process also helps with the curing process, which is where the concrete gradually hardens so that it is strong and resilient.

Unsealed concrete is porous and can absorb various types of liquids such as water and oil. Depending on the type of liquid, it can discolor and stain concrete. Fluids will also cause unsealed concrete to gradually deteriorate and break down. This can lead to chips and cracks in the concrete driveway.

What is Power Wash?

Pressure washing consists of cleaning a surface with hot water using high pressure equipment. It features a water pump and heater that delivers pressurized hot water with a nozzle temperature of up to 200°F (approximately 93°C). The forced hot water jet easily removes the most stubborn dirt.

But isn’t 200°F too hot and close to boiling temperature? Yes, it is and therefore you should wear protective boots and gloves when using these cleaners. As you know, the boiling point of water is 212°F or 100°C. However, superheated water will not turn into steam at this temperature because the pressure is higher. Smaller pressure washer models for home use are usually powered by electricity, while larger units are gas-powered.

Check your nozzle

It may be tempting to use a small nozzle, but the wrong size can damage many surfaces. The higher the number, the less narrow and powerful the jet. For most concrete and masonry work, stick to a 25 degree nozzle to spray and rinse your surfaces. You can use a finer nozzle to remove grease stains. A 15 degree nozzle should only be used on materials like iron that can withstand the most intense pressure from your washer. Never use a 0 degree nozzle, as this presents a safety risk.

If you are unsure which nozzle to use, try the larger size first and work your way down. Even the 25 degree nozzle is a little too intense for more sensitive siding, furniture and decking. Use only a smaller nozzle on concrete when applying detergent for deep cleaning.

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