AQUAMINERAL 2K Pro

Name: AQUAMINERAL 2K Pro
Brand: NEXLER
SKU: W-HY029-A0000-NX1C-1900

Chemically resistant two-component sealing micro-mortar

Application:

Waterproofing: open and closed storage tanks for water and other liquids for chemical resistance to environmental exposure in class XA3, wastewater treatment plant infrastructure facilities (settiling tanks, biological reactors, segmentation tanks, sand traps, sewers), biogas plants (biological reactors, fermentation tanks, post-fermentation tanks and methane storage tanks, silage silos), agricultural installations (liquid manure tanks, septic tanks, domestic water tanks excluding drinking water), hydrotechnical structures (retention reservoirs, pylons, abutments, quays), concrete structures such as floors, foundation walls and footings, retaining walls, etc.
Anti-corrosion protective coatings on a concrete substrate

Properties:

Has chemical resistance corresponding to class XA3
Low water vapour diffusion resistance (allows water to evaporate from a dampened structure)
Inhibits the carbonation of concrete
Watertight
Has a drying time indicator - a change in colour indicates readiness for the application of subsequent layers
Resistant to sulphate environment
Resistant to frost and de-icing salts
Resistant to seawater, liquid manure, water acidified to pH ~4
Higienic Certificate

Available packaging:

20 kg

Composition	liquid component (component A) - aqueous plastic dispersion powder component (component B) - modified cement compound
Density	liquid component (component A) - 1,01 g/cm³ powder component (component B) - 1,62 g/cm³
Mixing ratio	1 : 2,5 by weight (liquid component : powder component)
Processing time	45 mins
Maximum thickness of the applied layer	1 - 2 mm
Number of layers	min. 2
Time interval between applying following layers	4 - 6 h
Permeability to CO₂	S_D > 50 m
Water vapour permeability	class II (5 m ≤ S_D ≤ 50 m)
Capillary absorption and permeability to water	< 0,1 kg/m² × h^0,5
Thermal compatibility	≥ 0,8 (0,5)^a N/mm² ^aThe value in brackets is the lowest accepted value of any reading.
Chemical resistance	no visual defects (XA3)
Resistance to severe chemical attack	reduction in hardness of less than 50% (Shore method)
Crack-bridging ability	class A3 (-20°C)
Adhesion strength by pull off test	≥ 0,8 (0,5)^a N/mm² according to EN 1504 standard ^aThe value in brackets is the lowest accepted value of any reading.
Load permissible on the surface	with rain - after approx. 12 h with pedestrian traffic - after approx. 24 h pressurised water - after approx. 7 days
Backfilling the excavation	after approx. 3 days
Bonding of ceramic cladding	after approx. 12 h
Application temperature	from +5°C to +25°C
Reference document(s)	EN 1504-2:2004

The temperature of the substrate and air during the works should be from +5°C to +25°C.
Works should not be carried out during precipitation and strong sunlight.
The suitable substrate is concrete min. C20/25 class. Do not apply to concrete sealed with crystallising mortars.
The substrate intended for product application must be clean, loadbearing, even, porous (or with a rough surface finish) and seasoned. The substrate must not be frozen, frosty, stagnant water must not occur. The substrate should be cleaned mechanically; dust, any loose layers, sharp protruding edges and impurities that worsen adhesion should be removed. If there are cavities, honeycombing, gravel pockets and other unevenness in the substrate, it should be repaired, filled with suitable mortars from the NEXLER RENOBUD R series.
Special attention should be paid to the preparation of the substrate at the joints of elements (corners, joints of vertical and horizontal surfaces).
Embed a sealing tape in all corners, e.g. NEXLER Sealing Tape 120/120, or make a facet (rounding) with a radius of approx. 5 cm using NEXLER RENOBUD R 103 mineral mortar. Sealing of installation passages with AQUAMINERAL 2K Pro is only a supporting coating insulation of system seals (sleeves with flanges, sealing chains, bentonite cords), the use of which is necessary.
Immediately prior to application, the prepared mineral substrate should be slightly moistened, avoiding water stagnation. Substrates with a regular absorbency, dust-free do not require priming. Highly absorbent substrates and those containing gypsum require priming with NEXLER Gruntofol.
Check the production date on the packaging before use. The product should not be incorporated beyond its shelf life. The product should not be objectionable (e.g. contain lumps) after opening. The powder component should not be damp or clumped. After mixing, the compound should be homogeneous and free of lumps and clumps resulting from under-mixing. When properly mixed, the product forms a homogeneous coating when spread over the surface with a tool.
AQUAMINERAL 2K Pro is a two-component product supplied in a single container. Pour approximately 80% of the liquid component into a clean container. Then gradually pour in the powder component and mix both components with a low-speed stirrer until a homogeneous mass is obtained. Once homogenised, pour in the remaining liquid component, continue mixing. After the maturing time of 5 minutes, mix the material again.
If partial use is assumed, the product should be prepared maintaining the weight ratio of the components (1 part component A and 2,5 of component B).
For application of the first layer, it is recommended to add clean, cool water to the previously prepared mortar in an amount of up to 3% of weight of the mixture, and mix again.
The mixed, ready-to-use material should be used within 45 minutes. The matured material cannot be stirred and processed again.
Thickness of a layer should be checked by material consumption control on a dedicated surface. In addition, it is recommended to measure the thickness of the freshly applied sealing layer with special inspection plates, the measurement point should be filled with putty immediately.
After it has dried, a properly made coating should be a uniform, clean coating, without flakes and other defects. The coating should adhere closely to the substrate.
Particular attention should be paid to corners and areas where plumbing and other components pass through partitions - these need to be assessed for proper embedding of tapes, corners and cuffs.
The occurrence of colour variations or possible discolouration on the surface of the coating is related to the varying humidity of the air and substrate and to the varying thickness of the coating. This does not indicate a defect in the product and does not affect the quality of the applied layer.
AQUAMINERAL 2K Pro can be applied with a brush or trowel.
In order to close the pores in the substrate, it is necessary to rub in a first, thin layer with a brush. Before applying each successive layer (between applying following layers), maintain a technological break of at least 4 - 6 hours for the layer to dry. Then, apply the mortar in a minimum of two layers with the notched side of a steel trowel, then smooth with the smooth side of the trowel. Apply successive layers perpendicular to the previous layer. The recommended application thickness per layer is 1 mm (no thicker than 2 mm).
During setting, the coating should be protected from precipitation, frost, overly rapid evaporation of water and large temperature differences for approx. 12 hours.
Before use, please read the application details in the product's Technical Data Sheet.

approx. 1,5 kg/m² - per layer 1 mm
approx. 3,0 kg/m² - damp-proof insulation, thickness of a bound coating 2 mm
approx. 4,5 kg/m² - water tanks, thickness of a bound coating 3 mm
approx. 4,5 kg/m² - anti-corrosive protection of concrete, thickness of a bound coating 3 mm
approx. 4,5 kg/m² - XA3 environment, thickness of a bound coating 3 mm