Concrete structures are continuously under attack by water, weathering, chemical attack, and abrasion. Over time, permeable surfaces absorb water, leading to reinforcement corrosion, spalling, freeze-thaw deterioration, staining, or structural deterioration. This is why there is a need for protective and restorative products in order to maintain durability and integrity.
AQUAREP is Aquafin Pakistan's advanced penetrating water repellent for waterproofing concrete, mortar, masonry, and other porous materials. Rather than existing on the surface, it seeps into the substrate and chemically reacts with it to form a long-lasting hydrophobic barrier, making it our ultimate choice for a long-term roof leakage solution.
Here follows a step-by-step guide to how and when to apply it.
Key Features & What Sets AQUAREP Apart
From the product data sheet on Aquafin Pakistan's website, the following are some key properties and benefits of AQUAREP being a strong roof leakage solution.
aquafinpakistan.com
Penetrating & Chemically Bonded
While surface sealers leave a film on top, AQUAREP penetrates deep into porous substances (concrete, mortar, aerated blocks, etc.) and binds its nano‑sized active ingredients into the pores.
This internal bonding forms a protective network below the surface instead of just a film on top.
Hydrophobic & Fast Beading
Immediately after curing, the treated surface has strong water beading (drops bead up) and repellency towards absorption by liquid water.
This repellency shields the substrate from rain, splashes, and capillary moisture penetration.
One‑Way Breathability
While it repels liquid water, AQUAREP also allows for vapor transmission (moisture from within the substrate to escape).
This is done so that retained moisture isn't trapped in, something which would otherwise cause damage or delamination.
Crack Repair Capability
AQUAREP can fill or seal microcracks in the substrate measuring around 0.2 mm to 0.4 mm.
Since bonding and crack filling occur at the nano level, it guarantees continuity of protection via tiny fissures.
Chemical, UV & Temperature Resistance
The treated substrate acquires improved resistance to aggressive agents such as acids, alkalis, chlorides, carbonation, weathering exposure, and UV radiation.
It is designed to work effectively over a wide range of temperatures (‑50 °C to 200 °C).
Aesthetics & Durability
Because the active ingredients are internal, the look or appearance of the concrete or surface isn't changed.
This enables you to preserve the natural appearance while adding protection.
Bonding is also long-term and stable, extending the life of the material.
Typical Applications & Use Cases
AQUAREP is a general-purpose and usable in many structural and architectural conditions. Some of its common uses include:
Walls in and out (plaster, concrete, masonry)
Parking decks, pavements, plazas, sidewalks
Roof surfaces, terraces, parapets
Bridge piers, overpasses, airport aprons, highway structures
Building elements exposed to weather, UV, salts, etc.
Industrial floors, garages, and warehouses
Structural columns, retaining walls, façades
Because it seeps in rather than forming a film, it's usually used where appearance must be preserved, or where overlay coatings are undesirable.
Best Practices & Tips on How to Apply AQUAREP
For best results with AQUAREP, follow good practice in applying and get a long-lasting roof leakage solution.
1. Surface Preparation
Clean the surface of dirt, oil, grease, paint, coatings, or loose debris.
Repair deep cracks or serious defects if present.
Ensure the surface is dry or lightly damp, but not waterlogged.
2. Application Methods
AQUAREP comes in a ready-to-use condition and may be applied by spraying, brushing, rolling, or immersion.
Low-pressure spray is typically used, with the nozzle 10–15 cm away from the surface.
For more dense substrates, after 5–10 minutes, any excess liquid can be removed by wiping with a soft cloth to avoid puddling.
3. Saturation & Absorption
Use until the substrate is thoroughly saturated, i.e., the material will take in until no further uptake is possible.
4. Curing & Protection
Do not allow treated surfaces to be exposed to rain or water until treatment has completely cured.
Allow air-dry in natural conditions of air.
After curing, the substrate will exhibit hydrophobic characteristics.
5. Temperature Range
Ideal application temperatures are between 2 °C and 45 °C.
FAQs
Q1: Can AQUAREP be applied to existing weathered concrete surfaces?
Yes. AQUAREP is ideal for existing or retrofit buildings. Because it penetrates the substrate, it can restore mature, porous, or surface-exposed concrete, provided the surface is cleaned and prepared first. It's not a topcoat — it integrates into the substrate.
Q2: Will AQUAREP work beneath tiling or in bathroom/shower applications (wet rooms)?
Even though AQUAREP imparts water repellency, it has optimum use on structural or exposed concrete surfaces. In applications such as wet rooms or tile installations, it can be applied as a protective layer but not as a replacement for a full waterproofing membrane. Under such conditions, use AQUAREP as an additional treatment along with proper waterproof membranes or coatings for complete wet-service conditions.
Conclusion
AQUAREP is an advanced, penetrating water-repellent coating that enhances porous building materials' resistance to water, weather, and chemicals. Because of its ability to bond internally, remain breathable, and retain appearance, it offers a smart middle-ground alternative between simple sealers and full membrane systems, which is an ideal roof leakage solution.
For the majority of buildings — new or historic — AQUAREP provides long-term protection and extends life without alteration of appearance. Engineers and contractors should always, however, examine loading, hydrostatic pressures, and substrate response to decide whether AQUAREP alone is sufficient or if it is to be utilized as a component of a composite waterproofing system.
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