• Waterproofing of swimming pools, ponds, tanks, basements, etc.
• Waterproof protection of surfaces with micro-cracks.
• Prefabricated or/and concrete blocks.
• Protection of external walls of buildings.
• Retaining walls with geotextile sheet protection.
• Tunnels, ditches and irrigation channels.
• Lift shafts. Waterproof even under hydrostatic pressures (e.g. low water table).
• Waterproofing of bathrooms, showers, balconies, etc. for the subsequent laying of ceramic tiles with FLEX Ceramic tile adhesive Aymar.

• Step 1: the substrates must be resistant, solid, clean of dust, paint, waxes, release agents, oils and grease and perfectly set.
• Step 2: prior to the application of Flex Waterproofing Mortar Aymar, we recommend applying a fibreglass mesh in all corners, corners and drains in order to achieve total waterproofing of these critical points.
• Step 3: wet the surface with water until it is saturated, eliminating excess water and avoiding puddling.
• Step 4: to prepare the mortar, mix the entire 25 kg bag with 6.0 litres of clean water. It is mandatory to mix mechanically at low speed to avoid the inclusion of air. The resulting mixture must be completely homogeneous.
• Step 5: apply a 1st coat of Flex Waterproofing Mortar Aymar with a brush or fine trowel or pneumatic spraying system. This layer must be more than 2 mm thick. We recommend applying a 5x5 mm light fibreglass mesh on top of this first coat while the first coat is still fresh. This mesh significantly improves the tensile strength of the waterproofing.
• Step 6: let the 1st layer dry for approx. 4 hours.
• Step 7: apply a 2nd coat of Flex Waterproofing Mortar Aymar perpendicular to the 1st coat

• ATTENTION: we recommend applying at least 2 coats of 1 mm. each in pools or tanks that must contain water at positive pressure up to a maximum of 3 bar and/or negative pressure up to 1.5 bar.

Remember: the more coats, the more protection (always apply coats with a maximum thickness of 1 mm.), therefore for more pressure, increase the number of coats.

LAYING CERAMICS ON Flex Waterproofing Aymar: After 24 to 36 hours (at +20ºC) from the application of Flex Waterproofing Mortar Aymar, the ceramic pieces should be glued with a cement glue that complies with the regulations for adhesion on waterproof sheets, such as Tile Adhesive FLEX Aymar.

WARNING: Flex Waterproofing Aymar should not be used:

• At temperatures below +5ºC.
• In thicknesses greater than 1 mm. per layer.
• On surfaces that have not been previously saturated with water (especially on hot days).
• By adulterating the formula or modifying the powder-water ratio.
• On concrete structures that are not stable or subject to possible ground settlement (see Technical Dept.).
• Without first having carried out the watertightness test and having ensured the structural stability of the assembly.

Flex Waterproofing Mortar Aymar is a flexible, single-component, cement-based mortar that protects and waterproofs all types of masonry surfaces, concrete or rendered mortar in the presence of water or damp. Its flexibility allows it to cover the micro-cracks that form in concrete subjected to deformations.

Its unique characteristics differentiate it by its:

• Great adherence to the substrate.
• Total impermeability.
• Ceramic finish possible.
• No shrinkage.
• Excellent workability by brush, fine trowel or roller.
• High mechanical resistance.
• Resistance to the effects of saline and somewhat acidic water, atmospheric pollution by CO2, SO2, ...