3‌ ‌steps‌ ‌to‌ ‌cleaning‌ ‌unsealed‌ ‌or‌ ‌exterior‌ ‌concrete‌ ‌floors‌ ‌ ‌

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Concrete is commonly used in Tauranga and the rest of New Zealand. This material was once limited to patios, driveway, basement, and garage surfaces. However, today, it is used everywhere, from indoors to outdoors, due to its durability. Especially in an outdoor setting, concrete floors in Tauranga commercial or residential spaces are resilient. However, being unsealed and natural porous, exterior concrete surfaces are susceptible to stains, especially liquid ones. 

If you have encountered some, here are three easy steps to cleaning unsealed concrete floors with ease. 

Materials you need 

  • Pressure washer 
  • Rubber gloves
  • Water
  • Trisodium phosphate
  • Stain removers (varies depending on the type of stain)
  • Stiff-bristled broom or shop vac

Step 1: Remove debris

Using the broom or shop vac, clear out all the loose debris and dirt from the floor. This includes any litter, leaves, etc., that may be on the floor, hindering your way when cleaning. If this is a patio or balcony, make sure to remove any objects on the floor like a flower pot, table, chair, or mat. This step will help you clean the floor properly and effectively without much trouble.

Step 2: Pressure wash

Pressure washing the concrete floors is the best way to clean them. Fill the washer with a solution of water and Trisodium Phosphate, wear your gloves, and wash the floor. Make sure you follow the mixing directions for the product before you start cleaning. 

Step 3: Bye-bye stains

If pressure washing didn’t clean the concrete floors enough, and if you have tough stains, it’s time to get rid of them. Here’s how you can remove each type of mark or stain from concrete floors: 

  • Grease stains: Sprinkle a layer of cornstarch or dry kitty litter on the stained area and let it sit for three days, and vacuum away.
  • Food stains: Mix one quart of water and 2 tablespoons of dishwashing liquid. Apply it on the stain, scrub away, and rinse with water.
  • Tire marks: Wet the area and apply the cleaner to the mark. Let it sit for four hours or more and then scrub and rinse.
  • Rust stains: These stains can be removed by applying distilled white vinegar to the stained area. Let this sit for 30 minutes before brushing and rinsing. You can also use a commercial rust remover that contains oxalic acid.
  • Mildew stains: Mix water, Trisodium Phosphate, and laundry detergent and scrub the mildewed area with the solution and rinse.

Conclusion

Cleaning concrete floors can be tough if you don’t have the right tools or techniques. While pressure washing can clean most muck, stains are a whole different ball game. However, all you will need are some cleaning agents, water, and a good brush—with just these, you can get clean that concrete floor!

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