How to Remove Peeling Paint from Concrete Floor [Ask The Experts]

How to remove peeling paint from concrete floor

Concrete painting is an attractive way to improve the aesthetics of a driveway or garage floor, but it does have its limitations.

Eventually, the paint will begin to peel, requiring re-application.

Not only is this ugly to look at but peeling paint can also trap moisture between the paint and the concrete itself, which can wear away the concrete flooring over time. 

As a result, you'll need to remove peeling paintwork from concrete flooring as soon as it begins to appear.

This will expose the concrete surface so that it can be re-painted once more. 

It’s also a good idea to consider removing layers of paint that were applied many years ago, as lead-based paints have been used more heavily in the past, which can be hazardous to health.

The drawback is that you’ll need to be more careful not to inhale fumes given off by this type of paint when carrying out the removal.

There are a couple of different methods you can use to remove the existing paint from your concrete floor, though the most effective involves the use of a heavy chemical like paint stripper.

What you’re going to need

what are you going to need

Before you get started with removing the peeling paint, you should make sure that you have access to the following equipment:

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    Paint scraper
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    Plastic sheeting
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    Warm, soapy water
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    Protective hand equipment
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    Soft to medium-grit sandpaper
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    Paint brush or tooth brush for scrubbing
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    Pressure or power washer (optional)

Removing paint with a scraper

Using a paint scraper, scrape away all the loose and peeling areas of the paint, until it has all been removed.

Afterwards, you should wash the surface down with a weak dilution of soap and water, or with a mild cleaning product.

Not only will this remove any loose dirt and debris, but it will also remove mildew, making the surface easier to repaint.

If you discover that the old paint has left any kind of waxy or greasy moisture behind on the concrete, then you can remove this by selecting a soft to medium-grit sandpaper and gently sanding down the affected areas.

scraper

Using paint stripper

If you're aiming to completely repaint the concrete surface, as opposed to simply treating a specific area, or if your paint is peeling but not completely unstuck, then paint stripper is your friend.

This chemical can be used in a thick and even layer; you should ensure that the product has completely covered the painted surface to a point that the layer is double the thickness of the layer of paint.

This chemical should be left for up to several hours, until the paint has begun to wrinkle and peel.

In terms of the logistics of the application process, there are a few things to remember. Any plant life located near the surface being treated should be covered with plastic sheeting to protect them from the harsh chemicals in the stripper.

The same applies to any other painted goods you don't want damaged by the product; this powerful cleaner can damage stone, wood and even metal.

Cleansing the paint stripper

When the painted surface has wrinkled and you're ready to remove the paint stripper, your best bet is to employ the use of a pressure or power washer.

The pressurised water generated by one of these machines is powerful enough to slough away the loosened, wrinkled paint, leaving behind a surface free from paint and other debris.

You could also use a scraper, though this is going to take much longer. 

gas pressure washer

If you don't have a pressure washer and opt for this solution, then be sure to properly protect your hands, as paint stripper can be harmful to skin during extended periods of exposure.

Once the paint stripper has been completely cleansed from the concrete surface, then you’re ready to start painting again.

Summary

By following the above advice, you should find it straightforward to remove the old, peeling paint from your concrete garage or porch. In closing, we will leave you with the following quick tips:

DO

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    Avoid using paint stripper in humid or windy weather, as it could dry out
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    Wear personal protective equipment
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    Take your time and be patient when applying the chemicals

DON’T

  • Breathe in fumes from old, lead-based paint
  • Allow your paint stripper to drain into natural sources or storm drains
  • Get any paint stripper on other sensitive surfaces or belongings
How to Remove Peeling Paint from Concrete Floor [Ask The Experts]
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