These 2 buried walls at Kortenberg were made watertight again with our Waterproof cementation RC 221. First of all, all loose parts on the walls were loosened and removed with a concrete sander. Then a mixture of RC 221 with RC Acryplast (cement and concrete improver) was applied to improve the adhesion. As a penultimate step our RC 221 was applied manually to the wall using a trowel. The last step of the process is rubbing with a trowel.

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The waterproofing works were carried out by recognised contractor Iso-Immo.