EnduRE30C WaterLock
EnduRE30C WaterLock is a rare-earth enhanced Passive Daytime Radiative Cooling (PDRC) 2-in-1 coating system that combines seamless waterproofing and radiative cooling in a single application. Engineered for flat concrete roofs, waterproof membranes, and refurbishment projects, WaterLock eliminates the need for separate waterproofing and cool roof coating systems — delivering both functions in one integrated solution.
Based on water-based elastic acrylic waterproofing technology, WaterLock adheres firmly to concrete, metal roofs, and waterproof membranes, withstanding extreme temperature changes from -30°C to 90°C while providing long-lasting energy conservation, waterproofing, and weather resistance.
EnduRE30C WaterLock works through two complementary mechanisms:
1. High Solar Reflectance — Reflects 83.1% of total solar energy, blocking UV and infrared radiation before it heats the roof surface.
2. Infrared Atmospheric Window Emission — Rare earth compounds actively re-radiate absorbed heat through the 8–13 µm atmospheric window directly to the cold sky, even during peak daytime hours.
With a thick elastic film (380–420 µm dry film thickness) and outstanding elongation at break, WaterLock bridges existing cracks, seals joints, and provides a seamless impermeable membrane — while simultaneously delivering CSIRO-verified PDRC performance.
CSIRO-Verified Performance
Solar reflectance, thermal emittance, and Solar Reflectance Index (SRI) independently tested by CSIRO Infrastructure Technologies (Clayton VIC) in accordance with ASTM E903, ASTM E408, and ASTM E1980-11. Applied to PVC membrane substrate at 380–460 µm dry film thickness.
Solar Reflectance: 83.1%
Thermal Emittance: 0.904 (CSIRO measured)
Solar Reflectance Index (SRI): 104.9 (ASTM E1980-11, CSIRO)
Hemispherical Emissivity: 0.89 (China National Inspection)
Report No. XC4126 — issued by CSIRO Infrastructure Technologies, April 2026.
Best For
- Flat concrete roofs requiring combined waterproofing and heat reduction
- Existing waterproof membranes requiring refurbishment and thermal upgrade
- Walkable rooftop decks and terraces
- Concrete roofs with existing cracks or joints requiring sealing
- Buildings where separate waterproofing and cool roof systems would require two separate trades and applications
- Roofs exposed to extreme temperature cycling from -30°C to 90°C
Key Benefits
- 2-in-1 system — waterproofing and PDRC radiative cooling in a single application
- Up to 30°C cooler surface temperatures (site dependent)
- Typically 25–40% reduction in cooling load (project dependent)
- CSIRO-verified SRI 104.9 — exceeds standard white benchmark
- Tensile strength 2.0 MPa | Elongation at break 223% — bridges cracks and joints
- Impermeable at 0.3 MPa for 30 minutes — JG/T 375 certified
- Heat resistant to 90°C | Cold flexible to -30°C
- 75% solid content — high build, thick elastic film (380–420 µm DFT)
- Peel adhesion 0.34 N/mm to concrete and membrane substrates
- Water-based, non-toxic — safe for occupied buildings during application
- Coverage: approximately 50 m² per set | Applied by airless spray or roller
- Available in white and custom colours
Why WaterLock?
Most flat concrete roofs in Australia face two separate problems: waterproofing failure and summer heat buildup. Traditionally these require two separate systems — a waterproof membrane trade and a cool roof coating application — adding cost, programme time, and coordination complexity. EnduRE30C WaterLock solves both in a single system, with independently verified performance for both functions.
Its high elongation at break (223%) means it accommodates structural movement and bridges existing hairline cracks without splitting — a critical requirement for aged concrete rooftops undergoing refurbishment.
Recommended Application System
Prime Coat (A): Special Primer for 2-in-1 Waterproof & Heat-Insulating — 30–60 µm DFT
Functional Coating (B): Special Radiative Cooling Coating for 2-in-1 — 350–400 µm DFT
Topcoat (C): Special Topcoat for 2-in-1 — 15–25 µm DFT
Application method: Airless spray or roller
Recoat window: minimum 4 hours, maximum 72 hours
Sustainability
By combining two building envelope functions into one system, WaterLock reduces material use, application time, and associated carbon footprint compared to separate waterproofing and cool roof systems. Water-based and non-toxic, it supports green building outcomes, NCC energy efficiency compliance, and sustainable building refurbishment.
Two problems. One system. EnduRE30C WaterLock delivers verified waterproofing and passive daytime radiative cooling in a single application.
✨ Performance Highlights
| Property | Result |
|---|---|
| Solar Reflectance | 83.1% |
| Total Hemispherical Thermal Emittance | ~0.904 (CSIRO measured) |
| Solar Reflectance Index (SRI) | Up to 104.9 (ASTM E1980, CSIRO) |
| Radiant Cooling Power | 152 W/m² |
| Atmospheric Window Emissivity | 98% (8–13µm) |
⚙️ Technical Specifications
| Specification | Detail |
|---|---|
| System | Functional Layer (B) + Topcoat (C) |
| Dry Film Thickness | 380–420 μm (system total) |
| Coverage Area | Approx. 50 m² per full 3-coat system |
| Shelf Life | 18 months (sealed, stored at 5–40°C) |
EnduRE30C WaterLock
This page provides practical guidance for applying EnduRE30C WaterLock Radiative Cooling Coating, a rare earth–based system designed to deliver integrated waterproofing and radiative cooling for building roofs and waterproof substrates. For detailed procedures and project-specific requirements, always refer to the official Construction Manual.
1) Application Methods
- Airless spray (recommended for uniform waterproof membrane thickness)
- Roller application (commonly used for waterproof membranes)
- Brush (edges, joints, details and repairs)
2) Drying & Recoat Time
- Surface dry: approximately ≤ 1 hour
- Hard dry: approximately ≤ 24 hours
- Minimum recoat time: 4 hours
- Maximum recoat window: up to 72 hours
3) Application Conditions
- Substrates must be structurally sound, clean and dry
- Cracks, joints and penetrations must be repaired before coating
- Application temperature: 5–35°C
- Relative humidity: ≤ 75% RH
- Do not apply during rain or when rain is expected before curing
4) Waterproof System Guidance
- WaterLock forms a continuous, elastic waterproof membrane
- Uniform film thickness is essential for waterproof integrity
- Extra attention is required at seams, corners and penetrations
5) Professional Use Notice
- Designed for professional application
- Surface preparation directly affects waterproof performance
- Always conduct a small-area test before full application
Radiative Cooling Principle for Coatings
Stay Cooler, Naturally with Rare Earth Technology
Easyto’s EnduRE30C™ Rare Earth Coatings use advanced radiative cooling to keep building surfaces dramatically cooler under the sun. Unlike traditional paints that only reflect visible light, our coatings combine thermal barrier, solar reflection, and natural radiative emission for all-round heat control. This results in lower indoor temperatures, reduced HVAC loads, and improved energy efficiency.
How Radiative Cooling Works
The coating structure consists of multiple functional layers: a protective surface, a rare earth radiative cooling layer, and a heat-insulating substrate. Together, these layers reflect, block, and re-radiate solar energy — ensuring surfaces stay cooler without compromising durability or aesthetics.
Three Key Mechanisms
1. Thermal Barrier
Heat conduction is reduced by using rare earth materials with low thermal conductivity, preventing excess heat from transferring indoors.
2. Thermal Reflection
The coating reflects solar radiation energy across a wide wavelength range (200–2500nm), reducing the amount of heat absorbed by the building surface.
3. Thermal Radiation
Any absorbed solar energy is re-emitted as harmless far-infrared radiation (8–13μm) back into the sky through the atmospheric window — a natural, maintenance-free cooling process.
Why Rare Earth Makes the Difference
Unlike conventional titanium-based paints, Easyto’s rare earth coatings maintain high stability, strong solar rejection, and long-term weather resistance. This ensures performance does not fade with time and continues to deliver measurable energy savings year after year.
Real-World Benefits
- ✔ Surface temperature reduction up to 30°C
- ✔ Indoor cooling by 5–11°C
- ✔ 25–40% reduction in air conditioning energy load
- ✔ Longer service life with no yellowing or chalking
- ✔ Passive, maintenance-free cooling
Applications
Radiative cooling coatings are ideal for metal roofs, warehouses, demountable, telecom cabinets, tanks, animal barns, and more. By staying cooler naturally, these coatings extend material lifespan, improve occupant comfort, and lower operating costs.
EnduRE30C R-E Coating Warranty
Easyto Thermal Solution Australia Pty Ltd (“Easyto”) provides this Limited Warranty for EnduRE30C™ R-E Coating Gen 5 and Gen 7, when applied by an Authorised Applicator on approved substrates in Australia.
Warranty Period
The EnduRE30C™ R-E Coating is warranted for 8 years from the installation date when applied on qualified substrates (e.g., concrete, metal, compliant roofing) by an Authorised Applicator.
What’s Covered
- No cracking, fissuring, or peeling not caused by external force or substrate failure
- No significant insulation performance drop (>30% vs initial data, verified by testing)
- No large-area delamination or blistering (not caused by pollution or corrosion)
- No abnormal fading or discolouration (beyond “slight fading” as per standards)
Exclusions
- Normal wear and tear (minor scratches, gloss reduction)
- Improper maintenance (harsh cleaners, lack of upkeep)
- External forces (impacts, fire, flooding, accidents, unauthorised contractors)
- Substrate issues (pre-existing cracks, leaks, deformation)
- Use in unsuitable environments (strong acid/alkaline, high industrial pollution)
How to Make a Claim
- Contact your Authorised Applicator with proof of purchase.
- If unavailable, email info@easyto.com.au with subject “Warranty”.
- Include proof of purchase, installation date, defect photos, and applicator details.
- Provide access for inspection. Unauthorised repairs void coverage.
Australian Consumer Law
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law (ACL). You are entitled to a replacement or refund for a major failure and compensation for reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if they fail to be of acceptable quality and the failure does not amount to a major failure. The benefits of this warranty are in addition to your ACL rights.
Contact
Easyto Thermal Solution Australia Pty Ltd
ABN: 41 688 512 138
Email: info@easyto.com.au
Phone: 1800 2800 41