Caliwel HVAC AntiMicrobial Coating


Caliwel HVAC AntiMicrobial Coating is a revolutionary coating, durable, long-lasting, precision engineered for inside HVAC ducts and other areas of the HVAC system. For the first time, this product offers long term antimicrobial protection against odor causing bacteria, mold, fungi, algae on a coating’s surface of HVAC. Caliwel HVAC AntiMicrobial coating contains no pigments, no VOCs and is virtually odorless. 

Caliwel with BNA (Bi-Neutralizing Agent) solves problems safely and effectively caused by odor-causing bacteria, mold, mildew, algae and fungi, which can cause deterioration and discoloration on surface coating films. Caliwel HVAC AntiMicrobial coating utilizes lime (Calcium hydroxide, Ca(OH)2), as its active ingredient. Calcium hydroxide is an important component in pharmaceutical and dental products, supplements, as well as in the dairy, sugar and baking industries.


  • Superior long lasting architectural paint guards against deterioration and discoloration on surface coating films caused by microorganisms.
  • Inhibits odor-causing bacteria, mold, mildew, algae and fungi that can stain and discolor the surface coating by raising the PH so high, organisms cannot thrive
  • Caliwel utilizes calcium hydroxide (also called lime), a naturally occurring mineral.
  • Caliwel is water-based and free of Volatile Organic Compounds (VOC).

  • Apply directly over mold or bacteria contaminated drywall, woods studs, concrete or crawl spaces
  • No sanding required
  • No toxicity, emits zero myco-toxics and is ZVOC
  • Highly effective against odor causing bacterial, mold, fungi and algae
  • Eco-friendly, easily applied. No special equipment required
  • Ideal for inner sides of drywall, studs, crawl spaces, hidden areas, basements
  • Opaque-white in color.

Available in 5 gallon pails.
Covers approximately 250SF per gallon.

→Read the blog! 

This site uses cookies to offer you a better browsing experience. By browsing this website, you agree to our use of cookies.