How To Remove Concrete Efflorescence


There is a right way and a wrong way to remove efflorescence. Most people forget that efflorescence is a deposit of salts and salt is water soluble. If you powerwash the surface where efflorescence is growing, the efflorescence will appear to have been removed. One week, to two months, down the road, you have new efflorescence. That is because you can’t remove efflorescence with water, even if the water is coming out of a high pressure sprayer.

Other ways to remove efflorescence include the use of bleack, detergents, acids, and a few other types of liquids. Depending on the stage of your efflorescence, cleaning methods may or may not work. Foundation Armor manufactures the Armor Efflorescence Remover which is guaranteed to remove efflorescence from the surface, and from deep within the pores of the concrete or brick. It will break down the efflorescence, even if in an advanced stage, and dissolve it down to nothing. Once the efflorescence has been removed, you can seal the concrete with the Armor S2000 or Armor L3000 sealer to stop any new efflorescence from forming.

APPLICATION INSTRUCTIONS

Always test the surface to be prepared for previous coatings. This product will not work properly over coated concrete surfaces and is not to be used as a chemical coating stripper. It is always recommended to test Armor Efflorescence Remover prior to application for proper dilution rates, application coverage rates, and simply to ensure this product is what is needed for your application.

  1. Protect all areas not to be cleaned and prepared.
  2. Dilute Armor Efflorescence Remover with water to desired dilution rate (mix with cold water, d not mix with warm or hot water).
  3. Pre-wet the surface to be cleaned. Using a polyethylene pump sprayer, apply at a rate of up to 200-400 sq. ft. per gallon. Always use an acid resistant plastic sprayer. Work in areas of approximately 200 square feet at one time, covering the entire working surface not leaving dry areas or spots. Overlap sections prior to moving on to remaining areas.
  4. Allow 5-10 minutes for proper reaction, then by use of an acid resistant brush, work cleaner into the surface. Rinse thoroughly with water. Repeat until floor is clean and free of all material. Note: high pressure 500-1000 psi rinsing is recommended for best results. Make sure the final rinse is done with a PH balancing solution (such as water and ammonia, or water and baking soda). Remove standing water with a wet vacuum.
  5. Clean all equipment and tools with a warm soap and water solution.
  6. Allow the area to dry 18-24 hours.

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