EnduRE30C ValueShield for Steel Roofing
This page provides practical guidance for applying EnduRE30C ValueShield Radiative Cooling Coating for Steel Roofing, a cost-effective rare earth–based reflective cooling system designed for corrugated steel roofing sheets and steel roofing tiles, including steel and Colorbond®-type profiles. For detailed procedures and project-specific requirements, always refer to the official Construction Manual.
1) Application Methods
- Airless spray (recommended for uniform film build and coverage)
- Air spray
- Roller or brush (limited to small areas, edges, touch-ups and repairs)
2) Drying & Recoat Time
Drying and recoat times depend on temperature, humidity, airflow and substrate condition. Under standard conditions, typical guidance is as follows:
- Surface dry: approximately ≤ 1 hour
- Hard dry: approximately ≤ 24 hours
- Minimum recoat time: 4 hours
- Maximum recoat window: up to 24 hours
Reference conditions: ambient temperature 5–35°C, relative humidity ≤ 75% RH.
3) Application Conditions
- Steel roofing substrates must be sound, clean and dry, free from oil, grease, salt, dust and loose coatings.
- Remove rust, scale and oxidation by mechanical cleaning or abrasion prior to coating.
- Substrate moisture content: ≤ 10%
- Substrate pH: neutral range (pH 7–9)
- Application temperature: 5–35°C
- Relative humidity: ≤ 75% RH
- Ensure adequate ventilation in enclosed or confined spaces during application and curing.
4) System & Dilution Guidance
EnduRE30C ValueShield is a two-layer coating system consisting of a primer and a functional reflective layer. No protective topcoat is included in this system.
Dilution may be required depending on application method and environmental conditions. Where dilution is used, it should be carried out with deionised water.
Important: Exact dilution ratios and layer-specific guidance vary by component and application method. Always follow the Construction Manual and project specifications to achieve the intended performance.
5) Professional Use Notice
- EnduRE30C ValueShield is designed for professional application.
- Surface preparation quality is critical to adhesion and performance.
- This product provides reflective cooling performance only and does not include waterproof or hydrophobic protection.
- Actual coverage, drying time and thermal performance may vary depending on substrate condition, environment and application technique.
- Always conduct a small-area test and comply with site safety requirements, including appropriate PPE and ventilation.
EnduRE30C ValueShield is a practical solution for steel roofing applications where heat reduction is required and water repellency is not a critical requirement.