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EP Waterproof Supreme™: A Technical Overview
EP Waterproof Supreme™ is a penetrating waterproofer that reacts within mineral substrates to densify and seal from the inside out. Applied by low-pressure spray at approximately 4–6 m² per litre, it cures without forming a film, so treated concrete, brick, render and most natural stone retain a natural appearance while gaining long-term resistance to moisture, staining and surface breakdown.
The treatment increases substrate integrity, helping prevent surface dusting and fretting in concrete floors, and supports better adhesion and longer life of subsequent paints and floor coverings by limiting alkaline leaching that can cause saponification. It also assists bond between old and new concrete in repair/screed situations by controlling premature moisture loss from fresh material into existing slabs.
The formulation is described as non-toxic, non-hazardous and non-flammable, and is compatible with conventional sealants, adhesives and paints once fully dry.
Core Features & Specifications
- Penetrates & protects from within — not a surface coating.
- One-coat application: typical rate 4–6 m²/L by low-pressure spray (≤20 psi).
- Non-toxic, non-hazardous, non-flammable; water-dilutable.
- Helps prevent concrete dusting/fretting; increases wearing quality.
- Assists old-to-new concrete bonding by controlling rapid moisture absorption.
- Reduces paint saponification on masonry to extend coating life.
- Compatible with conventional sealants, adhesives and paints once dry.
- Packaging: 5 L, 20 L, 200 L drums; shelf life ~12 months (5–38 °C protected storage).
The EP Waterproof Supreme™ Advantage
- Fast to apply: backpack/hand sprayer coverage keeps labour tight and consistent.
- No film to wear or peel — performance is within the substrate.
- Supports longer-lasting paint and floor coverings by controlling alkali/moisture issues.
- Works on new or existing mineral substrates — interior or exterior.
Proactive Troubleshooting
Scenario: Applied over non-absorbent or previously silicone-treated surfaces
Potential Outcome: Low/no penetration leads to patchy performance and no durable waterproofing.
Adheseal Best Practice: Do not apply if the surface does not absorb. Avoid substrates previously treated with silicone/siloxane/solvent-based repellents.
Scenario: Application in cold conditions (<8 °C) or before substrate is dry
Potential Outcome: Delayed cure and inconsistent penetration.
Adheseal Best Practice: Apply only when air/surface is ≥8 °C and substrate is clean, dry and absorbent; maintain ≥8 °C for 24 h post-application.
Applications in Practice: Trade Scenarios
For Waterproofers (On-site Applicator): Basement walls & slabs
The Professional's Challenge
Moisture drive through concrete walls/floors causes damp, efflorescence and call-backs if a film coating fails or peels.
The Adheseal Solution
Spray EP Waterproof Supreme™ at ~4–6 m²/L onto clean, dry, absorbent concrete. Allow to penetrate and dry; full internal densification develops over days. Because it’s not a film, there’s no peeling.
Best Practice Note
Confirm absorption with a small test area. If beading occurs, the surface is contaminated or previously treated — do not proceed.
For Builders/Remedial (Business Owner): Slab repairs & screeds
The Professional's Challenge
Fresh repair mixes can lose moisture to the old substrate, risking weak bonds and uneven curing.
The Adheseal Solution
Treat the existing slab with EP Waterproof Supreme™ to reduce rapid moisture uptake, helping the new material cure properly and improving the old-to-new bond.
Best Practice Note
Allow initial cure/penetration, then follow your repair mix manufacturer’s guidance for placement and curing.
For Painters (Specifier/Applicator): Rendered façades
The Professional's Challenge
Alkalinity and moisture can drive saponification, undermining paint systems and shortening service life.
The Adheseal Solution
Apply EP Waterproof Supreme™ to clean, dry, absorbent render, allow to dry, then paint. The treatment helps neutralise lime/alkali effects and supports longer-lasting coatings.
Best Practice Note
Allow complete drying before painting; follow paint manufacturer’s recoat intervals and system specification.
Frequently Asked Questions
Is EP Waterproof Supreme™ a film-forming sealer?
No — it is a penetrating treatment that reacts within the substrate. There’s no surface film to peel or wear; the protection is from within the concrete or masonry once cured.
What coverage and application method should I plan for?
Plan approximately 4–6 m² per litre by low-pressure spray (≤20 psi) onto clean, dry, absorbent mineral substrates. One coat is typical; ensure visible absorption and allow to dry.
Can I apply it over previously silicone-treated masonry?
No. Do not apply over surfaces previously coated with silicone, siloxane or solvent-based materials, or where the substrate does not absorb — penetration will be inadequate.
Applications & Benefits
| Application / Use Case | Key Benefit | Primary Trades |
|---|---|---|
| Concrete floors (warehouses, plant rooms) | Reduces dusting/fretting; increases wearing quality | Waterproofers, Builders, Remedial |
| Old-to-new concrete interfaces (repairs, screeds) | Assists proper cure and bond by controlling moisture loss | Builders, Remedial |
| Rendered façades prior to painting | Helps prevent paint saponification; improves coating longevity | Painters, Builders |
| Basements, reservoirs, masonry walls | Internal waterproofing via substrate densification | Waterproofers, Builders |
Applying EP Waterproof Supreme™: Enhanced Protocols & Best Practices
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Surface Preparation
Ensure clean, dry, absorbent mineral substrate. New concrete: allow 2–3 days post-set before treatment.
Cleaning
Remove dust, oils, laitance and contaminants; rinse and allow to dry thoroughly.
Absorbency Check
Test a small patch; visible uptake indicates suitability. If beading occurs, do not apply.
Timing: Substrate dry; ambient and surface ≥8 °C and remain so for 24 h.Pro Tip: Condition material between ~21–28 °C for consistent spray pattern and penetration. -
Application
Apply by low-pressure spray (hand/backpack) at ≤20 psi.
Coverage
Target approx. 4–6 m² per litre in a uniform pass; work from top to bottom on verticals.
Foot Traffic
Area may be opened to reasonable foot traffic once surface is dry to touch/hardened.
Timing: Initial dry in 12–24 h (conditions dependent). Deeper penetration and densification develop over several days.Pro Tip: Allow complete drying before painting or laying floor coverings for a strong, problem-free bond.
Limitations & Safety
Product Limitations
Do not apply to surfaces previously coated with silicone, siloxane or solvent-based materials.
Apply only when air and surface temperatures are ≥8 °C, and maintain ≥8 °C for 24 h after application.
Substrate must be absorbent; if the surface does not take up the liquid, do not apply.
Safety & Handling Requirements
Personal Protective Equipment
Use standard PPE for liquid handling: safety glasses and gloves; avoid contact with eyes and prolonged skin exposure.
Ventilation Requirements
Apply in well-ventilated areas. Although non-flammable and water-dilutable, avoid inhaling spray mist.
Fire & Handling Precautions
Non-flammable. Store in closed containers, protected from direct sunlight, at 5–38 °C. Do not freeze.
Emergency First Aid
Eyes:
Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do.
Skin:
Wash with soap and water. Seek advice if irritation persists.
Inhaled:
Move to fresh air. Seek attention if symptoms occur.
Swallowed:
Rinse mouth. Do not induce vomiting. Seek medical advice.
Seek medical attention immediately in all cases of serious exposure.
EP Waterproof Supreme™ Application Guide
Concrete (new & existing)
Surface Preparation
New: allow concrete to set/cure 2–3 days. Clean, dry, and ensure absorbency. Existing: clean to remove dust, oils, laitance and contaminants; allow to dry.
Primer Requirements
No primer typically required on clean, dry, absorbent concrete.
Do not apply if water beads or surface appears sealed; confirm penetration on a test patch.
Render / Plaster / Mortar
Surface Preparation
Rinse/clean to remove dust and dirt; allow to dry completely before application.
Primer Requirements
No primer typically required on absorbent render/plaster.
Apply from top down by low-pressure spray; allow 12–24 h dry time.
Brick & Masonry / Natural Stone
Surface Preparation
Remove dust, salts and contaminants. Substrate must be dry and absorbent to ensure penetration.
Primer Requirements
No primer typically required if substrate takes up the treatment.
Do not use over silicone/siloxane/solvent-sealed surfaces. Not for non-absorbent finishes (e.g., glazed tile, glass).
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