AREXAL® - Kristalline Dichtungsschlämme (Pulver)

AREXAL® Sealing Slurry is a cement-bound surface sealing agent for sealing against soil moisture and pressurized water with deep action. With appropriate application thickness, AREXAL® Sealing Slurry can also be used as a waterproofing against pressurized water. AREXAL® Sealing Slurry is dense and particularly resistant to aggressive waters.

AREXAL® -Sealing Slurry adheres excellently to almost all cleaned mineral substrates. Due to its high flexural tensile strength, the risk of cracking in AREXAL® Sealing Slurry is greatly reduced. In combination with the products, AREXAL® Pro-Concrete or AREXAL® Pro-Brick. a great depth of penetration is achieved with AREXAL® Sealing Slurry, encapsulating harmful salts through this process.

AREXAL® Sealing Slurry is a ready-to-use, hydraulically setting surface sealing agent. It is used for sealing against pressurized water and moisture for new and old buildings, indoors and outdoors, in damp rooms, swimming pools, water tanks, underground garages, tunnels, shafts, and similar. It is used for subsequent sealing of cellars, retaining walls, septic tanks, etc.

AREXAL® Sealing Slurry hardens into an impermeable surface seal. The sealing slurry is physiologically safe and can also be used in the potable water sector.

Investigation report No. 7931 from the Technical University of Munich. Expert opinion from the State Hygiene Institute of the Free Hanseatic City of Bremen on the bacteriological behavior of AREXAL® Sealing Slurry. Examination report of the Swiss Federal Laboratories for Materials Science and Technology (EMPA) on the potable water compatibility of AREXAL® Sealing Slurry.

Sealing of masonry and concrete against soil moisture, pressurized, backwater, and groundwater. The walls should be constructed fully jointed. Voids in the concrete or defects in the masonry should be filled with mortar of mortar group II with the addition of AREXAL®-liquid X. Existing spacers, including star spreaders and wire ties, should be chiseled out 1.5–2 cm and patched with the same mortar. Before forming a fillet, the adhesive surfaces should be primed with AREXAL® Sealing Slurry. Concrete surfaces to be sealed must be open-pored and free from all contaminants such as formwork oil residues and cement remnants. AREXAL® Sealing Slurry should be diluted with water to a spatula or slurry consistency and applied in 2–3 coats or trowelings to the substrate. A new slurry coat should only be applied once the previous one has set. The total thickness of the slurry layer of at least 2 mm should be achieved. Highly absorbent substrates should be pre-moistened, and freshly applied slurry layers should be protected from sunlight and drafts.

Loose plaster and paint coatings must be removed. AREXAL® Sealing Slurry is to be applied 1–2 times generously, with the impregnation being absorbed but not yet dried when the next impregnation is applied. In cases of strong moisture penetration, several more impregnations may be necessary at these locations. A bag of sealing slurry should be intensively mixed with about 5.5 l of water. The first coat with the ArexA Sealing Slurry should be applied on a pre-moistened surface. After that, the sealing slurry should be applied in a thinner consistency as a bonding coat.

After the first layer has begun to set, the second coat with the sealing slurries in normal consistency should be applied. After the second layer of sealing slurry has set, at most after 6 hours, but no later than 3 days, the second layer of sealing slurry must be painted or troweled on. It must be ensured that voids are completely filled (no air inclusions). Depending on the moisture or water load, it may be necessary to apply another layer of slurry to achieve an impermeable sealing layer (consumption see diagram). For all intermediate layers, pre-moistening is required before applying the next layer. If a plaster system (e.g., AREXAL® Sanierputz white system) is to be applied to the AREXAL® Sealing Slurry, it should be done in one work step, right after sealing, as the sealing slurry no longer absorbs moisture and the renovation plaster is otherwise more difficult to apply.

AREXAL® Sealing Slurry is corrosive due to its alkalinity! The protective measures ordered by the chemical professional association must be strictly observed. Work with gloves and safety goggles. Seek medical advice immediately after skin contact. For better protection of the hands, they should be creamed with a protective cream. Rinse material splashes on the skin and in the eye immediately with plenty of water.

AREXAL® Sealing Slurry is corrosive due to its alkalinity! The protective measures ordered by the chemical professional association must be strictly observed. Work with gloves and safety goggles. Seek medical advice immediately after skin contact. For better protection of the hands, they should be creamed with a protective cream. Rinse material splashes on the skin and in the eye immediately with plenty of water.

An outstanding top-class product for highest building sealing and lasting safety!
5 Star Class Product!