HVAC

Belzona materials rebuild and protect surfaces damaged by corrosion and erosion in HVAC system
Where to Buy

Corrosion is typically the major issue for building owners and facilities maintenance crews to maintain the integrity of HVAC systems. If left untreated, there is a high probability of environmental and safety hazards, incidents and high replacement costs.

Belzona paste-grade composites can rebuild the surfaces damaged by corrosion, erosion, chemical attack or wear. Belzona fluid-grade materials provide a protective layer against future erosion-corrosion induced degradation.

TYPICAL PROBLEMS

Heat exchangers are susceptible to erosion damage and galvanic corrosion due to contact between two dissimilar metals, commonly used in the construction of heat exchangers. If this damage is left untreated, the operational efficiency of the system will be seriously undermined, allowing for deterioration of its components.

POTENTIAL SOLUTIONS

Belzona 1000 Series of fluid and paste-grade materials for stemming live leaks, and wrapping pipes for additional protection. Belzona 1100 Series of paste-grade repair composites for in-situ repair and rebuilding of damaged tube sheets; Belzona 1300 Series fluid-grade coatings for the protection against erosion-corrosion and resistance to chemicals. Belzona 4300 Series coatings for maximum chemical protection.

TYPICAL PROBLEMS

Typical problems on end covers include leakage between passes due to erosion-corrosion of division bars resulting in reduced efficiency.

POTENTIAL SOLUTIONS

Belzona 1100 Series of paste-grade repair composites for in-situ repair and rebuilding for damaged division bars, water boxes and end covers. Belzona 1300 Series fluid-grade coatings for protection against erosion-corrosion and resistance to chemicals. Belzona 4300 Series coatings for maximum chemical resistance.

TYPICAL PROBLEMS

Typical problems on cooling tower systems include: corrosion and chemical attack, causing perforations and metals loss, mechanical damage to shafts and keyways. For couplings and pulleys, problems include aging of the units and failure of original coatings that may potentially lead to corrosion and sludge build up – a potential risk of legionella bacteria.

POTENTIAL SOLUTIONS

Belzona 1000 Series of paste- and fluid-grade materials for stemming leaks, protecting seams and joints, plate bonding and corrosion resistance. Belzona 2000 and 3000 Series flexible materials for sealing and waterproofing seams and joints. Belzona 5000 Series fluid-grade coatings for corrosion and chemical protection of internal surfaces.

TYPICAL PROBLEMS

Typical problems on fan blades include erosion of the leading edge, cracks and flaking of the trailing edge; reduction of overall efficiency.

POTENTIAL SOLUTIONS

Belzona 1000 Series 100% solids paste-grade repair composites for the restoration of damaged areas subject to erosion; and Belzona 1300 Series fluid-grade coatings for erosion-corrosion protection.

TYPICAL PROBLEMS

Typical problems on ductwork include: corrosion of internal surfaces, metal loss leading to thin walls and through-wall defects, internal microbiological growth, deterioration of joints and seams, air leaks and water ingress, corrosion under insulation.

POTENTIAL SOLUTIONS

Belzona 2000 and 3000 Series of flexible and weatherproofing membranes for the restoration of deteriorated joints and seals; Belzona 5000 Series solvent-free coatings for the internal protection of the ductwork.

TYPICAL PROBLEMS

Typical problems on the holding pan include: general corrosion leading to metal loss and holes in holding pans, failure of joints and seams in the sidewalls leading to water ingress and failure.

POTENTIAL SOLUTIONS

Belzona 1000 Series of paste-grade composite materials for the repair and rebuilding of damaged surfaces. Belzona 3000 Series of water- and weatherproofing membranes for sealing seams and joints of the sidewalls. Belzona 5000 Series of fluid-grade environmental coatings for overall seamless corrosion protection.

Belzona materials rebuild and protect surfaces damaged by corrosion and erosion in HVAC system

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