EnviroSeal™

EnviroSeal is a smooth, high-viscosity water-based duct sealant designed for sealing joints, seams, and duct wall penetrations. Built for all HVAC ductwork applications, this indoor and outdoor grade sealant remains flexible, is paintable, and provides excellent mold and water resistance for dependable long-term performance.

With EnviroSeal, you can protect duct systems against air leaks while ensuring project compliance. It is GREENGUARD Gold certified, UL 181B-M and UL 181A-M Listed, UL 723 Classified, LEED compliant, meets applicable SCAQMD and CDPH standards, and conforms to NFPA 90A & 90B requirements.

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Special Characteristics:

• Indoor and outdoor grade
• For applications up to 15" w.g.
• For all HVAC ductwork applications
• Remains flexible
• Excellent mold and water resistance
• Paintable
• UL Listed 181 B-M & UL 181A-M Listed/UL 723 Classified
• GREENGUARD Gold certified
• LEED compliant, meets all applicable SCAQMD and CDPH standards
• Conforms to NDPA 90A & 90B requirements
• Union-made in the U.S.A.

Technical Information:

Chemical Type:	Synthetic Latex: EnviroSeal - Smooth EnviroSeal Plus - Fiber Reinforced
Color:	Gray
Odor:	Mild (wet) None (dry)
VOC Content:	0 g/L (EPA Method 24)
TVOC Emissions:	Private office - pass School classroom - pass (CDPH Standard Method v1.1)
Density:	11.4 +/- 0.3 lbs per gallon
Solid Contents:	64% +/- 3%
Viscosity:	475,000 +/- 50,000 cP
SHORE A HARDNESS:	>50
Application Temperature:	35°F to 110°F
Service Temperature:	0°F to 220°F
Storage Temperature:	35°F to 110°F
Dry to Touch:	1.5 hour (approximate)
Cure Time:	24 to 72 hours Depending on humidity, application, and temperature
Flexibility:	Pass (ASTM D522 1/8" Mandrel Bend)
Mold Resistance:	Pass (UL 181B Mold & Humidity Test)
Freeze Thaw Stability:	Pass
Adhesion Strength:	Pass - exceeds standards (UL 181B Peel Adhesion)
Coverage:	25 sq ft/gal at 1/16" 50 sq ft/gal at 1/32"
Shelf Life:	1 year (unopened container)