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7 things to look for in your HVAC system coating!

Posted by Peter Haugen on Thu, Apr 28, 2016 @ 04:35 PM

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Coating HVAC systems is becoming more and more popular. Why? It’s a great business opportunity for air duct cleaning contractors. Why? Because it is a way to extend the life of that HVAC system which saves the building owner the cost of replacing all or part of the HVAC system. Coating is typically done because the internal fiberglass insulation has deteriorated due to age and air erosion and if the HVAC system has been exposed to fire or mold contamination. Coating is done only after the HVAC system has been properly cleaned.   

There are many choices when it comes to HVAC system coatings. It can be confusing when you try to compare. We have boiled things down to these 7 “things to look for” in a coating to help you, deliver a quality job while maximizing productivity and minimizing cost.   

  1. Suitability for your project – look for a all purposeHVAC system coating that can be used on allHVAC system surfaces:
    • Use on sheet metal
    • Use on duct board
    • Use on internally lined (fiberglass) ductwork
    • Leaves a flexible, durable and water resistant surface
  2. Low odor (voc) – look for the grams/liter voc number. Some “low voc” classifications can have up to 150 g/l voc’s yet there are coatings that have just 2 g/l voc’s.   Lower is better.
  3. EPA registered preservative – prevents the growth of mold, mildew, and fungus on the surface of the coating.
  4. Leeds certified – meets Leeds criteria and is a more attractive product for building owners.
  5. Non flammable – meets certain safety standards
  6. Cost – lower cost maximizes your profits
    • First cost – coatings range from $200 to $275 per five gallon pail. Lower first cost can give you higher profits on the project and the ability to be more competitive on your bidding.
    • Coverage rate on hard and porous surfaces – determines how many gallons you need. Better coverage rates means you need less product which lowers your cost/expense.
  7. Easy of application – easier application maximizes your productivity and profits
    • No stirring or straining required – less prep time, less clogging.
    • Viscosity of coating - high viscosity coatings require larger/more powerful air less sprayers. Mid and low viscosity co atings are easier to apply.
    • Compatible with airless sprayers and cart/robotic spraying systems
    • Dry time – faster the better

These 7 criteria can help you compare HVAC system coatings and determine the best coating for your project. 

For more information, look at these resources:

  • Contact Peter Haugen at Vac Systems International at 855-Vac-Systems, 952-808-1619 or info@vacsysint.com.    

Tags: coating HVAC systems, coating