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concrete floor is "dusting"

Put on an addition 5-6 years ago. They pored a concrete floor for the basement. We didn't use it for about a year. When we started to use it we noticed it was giving off a white, dusty, sandy powder that would stay on our shoes. When we go upstairs it leaves small scratches and white foot prints on our hard wood floors. I have tried vacuuming the basement floors but the dusting starts right up again (imagine someone has spread about a 1/16th of an inch of a sandy baby powder on the floor).
No one seems to know of a product that would encapsulate the floor as they don't think anything can properly bond with this surface. I'm on a very tight budget so i can't have the floor jack hammered up and re-pored, so I'm hoping there is a product (maybe commercial grade?) that can encapsulate it. Then I would like to put a self leveling compound on it as it has become a bit uneven with the wear. Does anyone have an idea? Thank you so much for your thoughts.

Re: concrete floor is "dusting"

Check on the following products.
ProSoCo Inc
Consolideck H40
Make sure you check the FLASH POINT it contains Solvents.
Also check Applied Technologies they have a sealer for interior floors & walls & it is water based
Your problem is salts and moisture.
Did the contractor install a vapor barrier before placing the concrete ?
Also they could have used a mixture with a high content of lime to increase it's Plasticity.

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