PC-Sealcoat® Elastic

Two-component, cement-based highly flexible, elastomeric waterproof coating

PACKAGING

PC-Sealcoat® Elastic 45 kg packaging (27 kg cement-based powder mortar + 18 kg Acrylic polymer).

PC-Sealcoat® Elastic is a two-component elastomeric waterproof coating that incorporates polymer-modified cement. This coating is intended for application prior to tiling in various wet environments such as bathrooms, swimming pools, water tanks, terraces, balconies, non-acidic drainage culverts, and similar areas. Suitable for use on concrete and masonry surfaces, this product is engineered with excellent crack-bridging capabilities, even in prolonged water exposure scenarios. Additionally, it serves to protect reinforcements and rebar from corrosion.

FEATURES

Provides continuous and permanent protection against water infiltration in construction.
Ensures comprehensive waterproofing, capable of withstanding positive hydrostatic pressure up to 5 atm as per EN 12390-8 standards, and is resistant
to negative pressure.
Exhibits excellent adhesion to concrete under varying hydrostatic pressure conditions.
Effectively seals hairline cracks up to 0.4 mm width, even if they develop later.
Maintains water tightness in constructions even if the concrete surface or waterproofing layer sustains damage.
Suitable for use in potable water tanks and surfaces in contact with food.
Guards concrete against carbonation.
Preserves the integrity of reinforcing steel in concrete by preventing corrosion.
Does not impede the concrete element’s ability to “breathe”.
Features a straightforward application process that is cost-effective.

USES

It is a waterproofing solution for surfaces like concrete, plaster, wood, and metal, offering flexibility and strong adhesion. Ideal for areas prone to cracks and expansion, such as flat roofs, balconies, and swimming pools. Also useful for waterproofing basements against moisture and water pressure.

SURFACE PREPARATION

Ensure the substrate is thoroughly cleaned, and devoid of any oil, grease, loose materials, or dust. Seal water leaks promptly using PC-Conrend® Plug, an ultra-rapidsetting, cementitious leak-plugging mortar. Address any voids on concrete surfaces by filling and leveling them with PC-Conrend®RM or a cement mortar enhanced with PCConbond® Aid after eliminating loose aggregates and moistening the surface adequately. Trim starter bars and spacers to a depth of approximately 3 cm into
the concrete, filling the resulting holes as detailed above. Extend existing construction joints in a V shape to a depth of around
3 cm, then fill them according to the same procedure. Smoothly fill and round corners, such as wall-floor junctions, using
PC-Conrend®RM or a cement mortar improved with PC-Conrend®RM to create a fillet with triangular cross-section sides measuring 5-6 cm. When dealing with masonry walls, meticulously fill the joints or, if necessary, apply a layer of cement mortar enhanced with PCConbond® Aid. To waterproof basements in older structures, remove existing plaster to a minimum height of 50 cm above the water level before following the aforementioned steps. For applications requiring flat surface formation, like smoothing or slope creation, consider using PC-Conrend®RM or a mortar enhanced with PC-Conbond® Aid.

APPLICATION

The process begins by combining a 18 kg bucket of liquid component A with 27 kg pack of component B while stirring continuously until a consistent, viscous mixture suitable for brush application is achieved. Before application, the substrate should be pre-wetted to a saturated surface dry state. It is essential that the surface intended for the application of PC-Sealcoat® Elastic is devoid of any standing water. The material should be applied using a brush in multiple layers based on the water load, with layers exceeding 1 mm thickness to be avoided to prevent potential cracking. Subsequent coatings should only be applied once the previous layer has dried. To safeguard the freshly coated surface, protection from high temperatures, rain, and frost is recommended. When reinforcement of PC-Sealcoat® Elastic is required in specific areas (such as inside corners where fillets are unnecessary, junctions, etc.), it is advisable to use a 10 cm wide Glass Fiber mash (45 g/m²).

REMARKS

In case of water under pressure, care should be taken so that pumping, which keeps the water level low, does not stop before PC-Sealcoat® Elastic has sufficiently hardened. About 7 days are needed.
In case of water under pressure, the structure bearing the waterproofing layer (wall, floor, etc.) should be properly designed in order to be sufficiently static to withstand hydrostatic pressure. In the case of operational walkable floors, the floor surface waterproofed with PC-Sealcoat® Elastic should be protected with a cement mortar layer. Temperature during application should be between +5°C and +35°C. Due to cement content,component A of PCSealcoat® Elastic reacts with water forming
alkaline solutions, thus is classified as an irritant. Consult the directions for safe use and precautions written on the packaging before use.