Glenkote 5g Pail 2016-04-08 [3D MOCKUP]

Miracle® Glenkote Seal-Flex is a water-based mastic/sealing compound for air conditioning and heating duct seams. Glenkote is easily applied and forms a permanent, flexible seal. When completely cured, it is impervious to gasoline, oil, grease, mold, fungi, weak acids and alkalis. Glenkote is also highly resistant to the effects of temperature change.


  • Easily applied
  • Forms permanent, flexible seal
  • Highly resistant to effects of temperature changes
  • When cured, impervious to gasoline, oil, grease, weak acids and alkalis


  • SCAQMD, Rule 1168
  • California Air District Regulations
  • Ozone Transport Commission (OTC) Rule for Adhesives and Sealants


  • Contributes to LEED and other green building credits
  • GREENGUARD Indoor Air Quality Certified
  • GREENGUARD for Children & Schools Certified
  • UL Classified: Adhesives R-6891
  • UL Listed 181B-M
  • NAHB National Green Building Program
  • Meets SMACNA Seal Classes A, B, C
  • City of Los Angeles Approved: RR7988


  • 1 Gal. Pail


  • Ivory