PREN concrete sealant

Our PREN sealant is a sodium oleate specially developed for cementitious binders that reduces the capillary water absorption of concrete and mortar to a minimum. This allows waterproof concretes to be produced and plastered wall surfaces to be made permanently water-repellent. PREN is added directly to the fresh concrete during mixing and simply mixed in. The recommended dose is 0.1 to 0.5% of the cement quantity contained.

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