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Industrial AHU Casing & Panel Restoration: Marine-Grade Protective Coatings

In the 2026 Malaysian industrial sector, Marine-Grade Protective Coatings are the primary defense against "Aggressive Environment Degradation." Under the Energy Efficiency and Conservation Act (EECA) 2024, rooftop AHUs in coastal areas like Port Klang, Bayan Lepas, and Pasir Gudang are subject to extreme salinity and 90%+ humidity. Corrosion is no longer just a structural risk—it is a statutory energy liability. A corroded casing leads to air leaks and thermal bridging, which directly spikes your Building Energy Intensity (BEI) and can result in the loss of your building's energy label.

At EKG (Malaysia) SDN BHD, we specialize in applying C5-M (Marine High Corrosivity) rated coating systems that satisfy ISO 12944:2026 and MS 1525:2024 standards for high-performance facilities.

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1. The Statutory Mandate: EECA 2024 & C5-M Compliance

In 2026, rooftop assets are scrutinized during mandatory energy audits by Registered Energy Auditors (REA).

 

• SFP Preservation: C5-M coatings prevent "Exfoliation Corrosion" at panel seams. By maintaining a hermetic seal (ATC 6 compliance), your VFD-driven AHU avoids ramping up power to compensate for leaks, keeping your Specific Fan Power (SFP) within the statutory 1.6 kW/m³/s limit.

• Life-Cycle Sustainability: Coating is a recognized "Energy Retrofit" under the Green Investment Tax Allowance (GITA). Extending the life of an existing AHU by 15+ years avoids the massive carbon footprint of a full replacement.

• BOMBA Structural Safety: A marine-grade barrier ensures the AHU Base Frame remains structurally sound, preventing the "Base Rot" that can lead to unit instability during emergency high-velocity smoke management cycles.

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2. The EKG C5-M Multi-Stage Coating System

We treat rooftop AHUs as "Offshore Assets," utilizing a multi-layered approach to block salt-ion penetration.

Coating Layer	Technical Material	Function
Primer	Inorganic Ethyl Zinc Silicate (75µm)	Provides "Sacrificial Cathodic Protection" directly to the steel.
Intermediate	High-Build Polyamide Epoxy MIO (150µm)	Micaceous Iron Oxide (MIO) flakes create a "Shield" against moisture.
Finish Coat	Aliphatic Acrylic Polyurethane (100µm)	Provides UV resistance and prevents "Chalking" under the KL sun.
Total DFT	325 - 350 Microns	The industrial benchmark for Extreme Corrosivity (C5).

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3. Engineering for "Coastal Reliability"

The EKG approach focuses on the specific failure points caused by salt-spray and thermal cycling.

1. Stripe Coating Technique: We perform manual "Stripe Coating" on all sharp edges, bolt heads, and weld seams before the main spray application. These are the first areas to fail on standard units; we ensure they receive double the protection.

2. Flexible Joint Encapsulation: We utilize high-movement, UV-stable MS Polymers for AHU Panel Joint & Gasket Resealing. This ensures the coating doesn't crack when the unit expands and contracts during the intense KL heat-rain cycles.

3. Low-Emissivity Finishes: Our topcoats are formulated with high-reflectivity pigments to reduce solar heat gain on the casing, further lowering the cooling load and improving your building's BEI score.

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4. The "Fire Mode" Statutory Protocol

Marine coatings must satisfy the stringent life-safety requirements of BOMBA (JBPM) 2026.

• Class 0 Flame Spread: All systems used by EKG are certified Class 0 (BS 476 Part 6 & 7). This ensures that the exterior coating does not act as a fuel source or release toxic smoke during a rooftop fire event.

• Adhesion Resilience: The coating bond is tested for high-velocity wind and pressure surges that occur during an Automatic Fire Signal AHU Shut-off.

• BOMBA Audit Readiness: We provide the DFT Validation Report and ASTM B117 Salt Spray Test certificates required for your annual Fire Certificate (FC) renewal.

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5. Why Partner with EKG (Malaysia) SDN BHD?

• NACE/AMPP Certified Inspection: Our coating applications are overseen by certified inspectors to ensure surface preparation (SSPC-SP10) and film thickness meet international standards.

• Audit-Ready Reporting: We provide a comprehensive Anti-Corrosion Performance Report, essential for your Registered Energy Manager (REM) to prove proactive asset management.

• Targeted HVAC Expertise: We are mechanical specialists, not just general painters. We ensure that coatings do not interfere with sensor ports, access door operation, or Vibration Isolators.

Is your rooftop AHU "rotting" away, leaking energy, and failing statutory audits?

Contact EKG (Malaysia) SDN BHD today for a professional Marine-Grade Coating Audit & Statutory Compliance Restoration.