SIRIOBARRIERA is an oligomeric organosiloxane compound specifically formulated for the treatment of absorbent building materials, in which it develops a breathable, water-insoluble resin network that counteracts the capillary rise of water in masonry.
Fields of application: it is used for chemical barrier treatments against rising damp in masonry made of bricks, stone, and concrete, by means of low-pressure injection (max 2–5 bar).
Directions for use:
• WALL PREPARATION: remove external wall coverings at the level of the treatment area. If possible, remove paint or wallpaper on the internal side in order to promote evaporation of moisture contained in the masonry. Seal cracks wider than 0.3 mm.
• HOLE DIMENSIONS: holes must be drilled as close to the ground as possible, never exceeding 20 cm above the internal floor level, and must have a diameter of 12 or 18 mm depending on the material used for injection, with a depth reaching 10 cm from the opposite face of the masonry. The spacing between holes must be between 10 and 20 cm; when treating masonry thicker than 50 cm, or mixed or stone walls, two series of holes are required: one on the internal side and one on the external side of the wall.
• INJECTION:
– Equipment: MABI injectors, supplied by a pump capable of providing a maximum pressure of 5 bar.
– Procedure: inject SIRIOBARRIERA for approximately 5 minutes at a pressure between 0.5 and 2 bar. Injection intensity and duration must take into account the characteristics of the masonry (porosity and capillary diameter). Generally, it is preferable to use low pressure and longer times in order to promote better distribution of the product within the masonry.
• PLASTERING: to apply the finishing plaster, immediately after dehumidification we recommend using a highly breathable plaster such as our SIRIOBETON IDR.
Dosage: from 4 to 20 liters per linear meter, depending on the thickness and nature of the walls to be treated.
Packaging: 210 L drum; 25 L and 5 L canisters.
Equipment: for product injection, we supply special injectors and pneumatic pumps.
