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When the job demands permanent masonry protection that works from within, the EP Waterproofing System delivers. It transforms porous concrete, brick, and stone into a dense, waterproof mass without altering the surface appearance. This ensures lasting resistance to water, chemicals, and deterioration, securing the substrate's integrity from the core.
This product was engineered to fundamentally change masonry structures. Unlike surface films that degrade or peel, it employs an advanced inorganic formulation to chemically react with the masonry. This reaction solidifies the component parts into a dense, waterproof mass. It offers permanent protection against water ingress, chemical attack, and physical deterioration, preserving the structure from its core.
The EP Waterproofing System arrives ready to use, requiring no mixing. Low-pressure spray application (maximum 20 Psi) is the preferred method for optimal coverage and deep penetration. Before application, ensure the masonry surface is clean and dry, free from dirt, dust, oil, and loose material. The product penetrates quickly, and treated areas can typically withstand reasonable foot traffic shortly after application. It will not harm adjacent glass, tiles, or aluminium surfaces.
In concrete repair and surface treatment systems, the EP Waterproofing System consistently functions as the initial step. It prepares the substrate by solidifying and waterproofing the masonry from within, creating a stable, chemically resistant base for subsequent membranes, grouts, or other finishes. This foundational treatment ensures the long-term integrity of the entire system.
It is not a film-forming coating. The treatment penetrates the substrate and reacts within the gel pore system, densifying the matrix to waterproof from within, so it cannot peel or wear away like a surface film.
Once the substrate is dry after application you may paint; on plastered substrates allow 12–24 hours penetration and drying before finishing. Full cure progresses over several days.
Yes. Shotcrete’s higher cement content increases reaction potential. Expect slightly higher uptake (lower m²/L) due to absorption; spray to saturation and allow to dry.
Do not apply over substrates previously treated with silicone, siloxane or solvent-based repellents, or where the product won’t absorb. For porous concrete block walls, specify EP™ Concrete Block Sealer.
| Application / Use Case | Key Benefit | Primary Trades |
|---|---|---|
| Basements/retaining walls (negative-side) | Internal densification reduces water ingress; negative hydrostatic resistance | Waterproofers, Builders |
| New toppings over old slabs | Controls absorption for improved curing and bond | Builders, Concreters |
| Rendered/painted façades | Helps prevent saponification; longer coating life | Painters, Builders |
| Shotcrete linings | Enhanced reaction with high cement content | Waterproofers, Civil |
Clean substrates to remove dust, oils and contamination; rinse and allow to dry. Confirm no prior silicone/siloxane/solvent-based treatments.
Use EP™ Cleaning Products as needed, rinse thoroughly and ensure the surface is dry before treatment.
Apply when air/surface >10 °C; maintain >8 °C for 24 h. Keep materials ideally 18–35 °C.
Apply by low-pressure spray (back-pack or equivalent) at ~20 psi to saturate the surface uniformly.
Typical rate ~5–7 m²/L on dense substrates; shotcrete may require higher uptake due to absorption.
Allow to dry before foot traffic or finishing. On plaster, allow 12–24 h penetration before coating.
Wear safety glasses and suitable gloves during application. Avoid contact with eyes and prolonged skin exposure.
Use with adequate ventilation. For interiors, ensure air movement during and after spray until surfaces are dry.
Non-flammable. Keep containers closed when not in use. Prevent release into drains and waterways.
Seek medical attention immediately in all cases of serious exposure.
Remove dust, laitance, oil/grease and contaminants. Clean with EP™ Cleaning Products, rinse and allow to dry. Ensure surface/air >10 °C and remains >8 °C for 24 h.
Apply by low-pressure spray (~20 psi) to saturation at ~5–7 m²/L. Allow to dry before traffic/finishes.
EP™ Cleaning Products (prep only)Rinse to flush dust on new work; dry completely. Treat at ~1 L/4–5 m² from the top down; allow 12–24 h penetration.
Paint once dry; expect full cure in approximately 4–5 days for plastered areas.
—Ensure clean, dry and free of repellents. Assess pore size; some quick-stage block has oversized voids.
Use EP™ Concrete Block Sealer where pore/void structure is too large for standard penetration.
EP™ Concrete Block Sealer| Property | Value |
|---|---|
| Base Chemistry | Polyester polymer penetrating treatment |
| Appearance | Translucent liquid |
| Density | 1.34 g/cm³ @ 20°C |
| pH Value | ≈ 6.0 |
| Initial Cure | Initial reaction ~12–14 h, Full cure ~6–7 days |
| Trafficable Time | Allow to dry before foot traffic and painting; Plaster: 12–24 h before finishing |
| Application Temperature | 18°C to 35°C |
| Service Temperature | 100°C (water) |
| Storage Temperature | 0°C (water) |
| Water Ratio | Dilutable |
| Coverage Rate | 5–7 m²/L (typical), 4–5 m²/L on plaster, Higher uptake on shotcrete |
| Substrate Compatibility | Not for use over silicone/siloxane/solvent-based repellents; Does not plug holes/cracks |
| Standards | ASTM C31 (compressive strength), ASTM C672 (chloride penetration), ASTM 413 (water absorption), AASHTO T259-89 (chloride ion), ASTM C67 §10 (efflorescence), BS 1881 Part 122 (water absorption), AS 1012.21 (density & absorption) |
| Resistance Testing | Negative-side test to 4.137 MPa (no visible failure) |
| Packaging | 5 L, 20 L |
| Shelf Life | ≥12 months (sealed, Protected storage 5°C to 38°C, Avoid direct sunlight) |
| Storage Conditions | Keep in closed containers, Protected storage 5°C to 38°C |
Here are some common examples on where EP Waterproofing System used by our customers.
