Chemcote HVAC Heating and Ventilation Coating Solutions
Advanced Anti-Corrosion, Chiller Refurbishment and Fluid Efficiency Coatings for HVAC Infrastructure
Protecting critical HVAC, cooling and refrigeration infrastructure requires specialized engineering coatings capable of withstanding constant condensation, chemical treat water, marine environments and thermal cycling. Industrial chillers, heat exchangers, cooling towers and pumping systems suffer from rapid pitting corrosion, galvanic degradation and micro-fouling. Without proper protective linings, these issues compromise thermal efficiency, increase energy consumption and lead to premature capital asset replacement.
Chemcote provides Australian-owned HVAC coating applications, NACE and ACA certified coating inspections, design specifications and asset refurbishment services across Australia. Utilising high-performance vinyl ester glassflake series and surface-tolerant epoxies, Chemcote extends the operational lifespan of critical HVAC assets while optimizing fluid dynamics and thermal performance.
The HVAC Corrosion Challenge
Operating industrial and commercial cooling systems presents unique degradation mechanisms:
Galvanic Corrosion in Heat Exchangers: Dissimilar metals (such as mild steel water boxes mated with copper or bronze tube sheets) create intense localized galvanic corrosion.
Chemical and Sea Water Attack: Recirculated cooling water, aggressive water treatment chemicals and marine intake cooling cause severe pitting on volutes, strainers and pipework.
Scale Accumulation and Drag: Internal surface roughness in pumps and water boxes causes micro-turbulences and mineral scale build-up, reducing fluid flow efficiency and driving up power costs.
Severe Downtime Restrictions: Industrial plants and co-generation facilities operate under tight maintenance windows, making traditional multi-coat drying times and extensive grit blasting impractical.
Why Chemcote? The Technology Advantage
Chemcote shifts the maintenance paradigm by deploying solvent-free, wet, rust and oil-tolerant coating technology. Unlike conventional marine paints, our systems do not require clinically dry or perfectly blast-cleaned steel.
CONVENTIONAL HVAC PAINTS
- Requires Dry Abrasive Blasting
- Strict Moisture & Dew Point Limits
- Susceptible to Micro-Fouling & Scale
- Accelerates Galvanic Degradation
- Multi-Coat Delays (Overcoating)
CHEMCOTE ADVANCED SYSTEMS
- Surface Tolerant (Sa 2, WJ-2, St3)
- Wet & Damp Substrate Tolerant
- Impermeable Glassflake & Ceramic Barrier
- Galvanic Isolation & Dimensional Repair
- Rapid Turnaround & Workshop Application
Key Technical Benefits
1. Tough, Impermeable Barrier Protection
Our Chem-tect vinyl ester glassflake series (RB 300) provides an ultra-tough, impermeable barrier against aggressive immersed environments, sea water and chemical cooling loops
2. Fluid Efficiency and Scale Reduction
Specialised smooth topcoats (such as Ceram-chem RP 500) reduce hydraulic drag, prevent scale build-up inside pumps and water boxes, and significantly improve fluid flow efficiency.
3. Dimensional Repair and Galvanic Isolation
We rebuild lost metal on critical sealing faces, tube sheets and wear ring lands using glass-reinforced composite techniques, completely isolating dissimilar metals to stop galvanic attack.
4. Surface-Tolerant Application
Using the Epo-chem series, internal and external coatings can be applied over damp or water-jetted substrates without requiring dry abrasive blasting, drastically reducing project turnaround times.
Specialised HVAC and Cooling Solutions
1. Chiller Water Boxes and Tube Sheet Refurbishment
Rebuilding severely pitted tube-sheet faces and water box interiors. We utilise custom protective capping techniques and post-machining of critical sealing faces to ensure division plates mate perfectly without fluid bypassing.
2. Pump Volute and Impeller Fluid Dynamics
Rebuilding sea water volutes and treating impeller eyes using Kevlar-reinforced and ceramic coating systems. This restores structural integrity, eliminates cavitation damage and boosts pump hydraulic efficiency.
3. Strainer, Conduit and Valve Protective Linings
Heavy-duty internal linings for basket strainers, intake screens, seawater conduits and butterfly valves. Incorporating composite rebuilding and anti-foul technology to prevent marine growth and chemical pitting.
4. Concrete Bunds and Floor Containment
Chemical-resistant epoxy and vinyl ester linings designed to protect secondary concrete bunds, cooling tower bases and equipment rooms from chemical treatment spills and continuous washdowns.
Why Chemcote? The Technology Advantage
Chemcote shifts the maintenance paradigm by deploying solvent-free, wet, rust and oil-tolerant coating technology. Unlike conventional paints, our systems do not require clinically dry or perfectly blast-cleaned steel.
SURFACE PREPARATION
- Ultra High Pressure Water Jetting (UHP)
- Abrasive & Glass Bead Blasting
- Mechanical Prep & Hot Washing
SPECIFICATION & INSPECTION
- NACE & ACA Certified Coating Inspectors
- Condition Reports & Failure Analysis
- Full Workshop & On-site QA Specifications
COATINGS APPLICATION
- Chiller Water Box & Tube Sheet Refurbishment
- Pump Volute Composite Rebuilding
- Fibre Glass Parts Construction & Repairs
HVAC Assets Protected
Asset Category
Specific Applications
Coating System
Chillers and Heat Exchangers
Water Boxes, End Covers, Tube Sheets, Division Plates
Chem-tect RB 300 Series Glassflake & Nylon Tube Inserts
Pumps and Fluid Handling
Sea Water Volutes, Impellers, Wear Ring Lands, CW Systems
Chem-tect RB 300 with Ceram-chem RP 500 Ceramic Topcoat
Piping and Filtration
Basket Strainers, Intake Screens, Conduit, Butterfly Valves
Composite Metal Rebuilding & Non-Toxic Anti-Foul Coating
Containment and Floors
Concrete Cooling Tower Bunds, Equipment Room Floors
Heavy-Duty Epoxy & Vinyl Ester Concrete Lining
CASE STUDIES
Check out some of the projects we’ve worked on.
Download Our HVAC Brochure
Gain complete technical specifications, application guides and performance data for our marine and offshore protective systems.
Frequently Asked Questions
How do Chemcote coatings prevent galvanic corrosion inside heat exchangers and chillers?
Galvanic corrosion occurs when dissimilar metals (like mild steel water boxes and bronze tube sheets) meet in recirculated water loops. Chemcote applies high-dielectric glassflake vinyl ester coatings (RB 300 series) across the entire mating surface, physically and electrically isolating the metals to completely halt galvanic degradation.
Can Chemcote rebuild severely pitted sealing faces without requiring expensive replacement parts?
Yes. We utilise ceramic and glass-reinforced composite rebuilding techniques to restore lost metal on sealing faces, division plates and wear ring lands. Once applied, we precision-machine the surfaces to exact tolerances, saving the client significant capital cost and lead time compared to replacing the component.
How do protective coatings improve the energy efficiency of HVAC pumps and chillers?
Corroded, rough metal surfaces inside pump volutes and pipes create micro-turbulences and encourage mineral scale build-up. By applying ultra-smooth ceramic topcoats like Ceram-chem RP 500, we create a ultra-low-friction surface that improves fluid flow dynamics, minimises scale accumulation and reduces pump energy consumption.
What testing and quality assurance is conducted during an HVAC refurbishment project?
Our NACE and ACA certified coating inspectors conduct full quality assurance throughout the process. This includes pre-blast surface cleanliness checks, profile depth measurements, salt contamination testing (hot washing if required), high-voltage spark testing (up to 8kV) to ensure zero pinholes, dry film thickness (DFT) verification and dynamic impeller balancing prior to re-assembly.