HVAC standards and installation practices vary by region across the country to meet the many needs of different regional temperatures & humidity, project types and local building practices.  This variety in system design and specification is one reason why standards have been designed and adopted to ensure HVAC systems are built to specific criteria to provide consistent performance based on their needs.   

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We are excited to introduce Foster® FDS-181 Air-Tight™ Duct Sealant.  FDS-181 Air-Tight™ is a versatile use water-based HVAC duct sealant. It can be used on all types of metal ducts, glass fiber duct board, flex ducting and meets all SMACNA seal classes.  FDS-181 is fiber reinforced for superior toughness, available in gray, white and black colors and can be used both indoors and outdoors without additional protection.  It is UL 181A-M & UL 181B-M listed and ZERO VOC.  The formula is MAS Certified Green® and meets the requirements of California Department of Health (CDPH) Standard Method v1.2 for low VOC emissions.

Foster® has a comprehensive accessory product line to serve the needs of the HVAC industry.  From Duct Sealants to adhesives to mastics, we make the products that contractors, engineers, and owners depend on to ensure a long-lasting, high-quality installation.  Learn more at fosterproducts.com.