Huntsman Building Solutions Heatlok HFO High Lift closed-cell spray polyurethane foam insulation offers an R value of 7.5 and can be applied in a single maximum pass thickness of 3.5″. It utilizes Honeywell’s Solstice® HFO Liquid Blowing Agent technology, which boasts a GWP of 1 (99.9% lower than traditional blowing agents). And with great yield and sprayability, excellent adhesion and reduced gun-clogging, you can enjoy superior quality too.


Aged Thermal Resistance: R value of 7.5.

NFPA 285 Compliant: NFPA 285 Tested and approved behind multiple claddings

Water Resistant: Tested Water-Resistant Barrier (WRB)

Vapor Retarder: Class II vapor retarder at 2” thickness

Low VOC: Greenguard Gold Certified- Low VOC

Flood Resistant: Meets Class 5 FEMA (Flood Damage Resistance Requirements)