InsulStar Self-Adhering Seamless Closed Cell Spray
Product Description
InsulStar® is a two component, self-adhering, seamless, closed cell, spray applied polyurethane foam system. This NCFI system has been formulated with highly insulating HFC-245fa as the blowing agent and contains an anti-microbial ingredient to inhibit the growth of molds. The InsulStar® insulation system is suitable for application on the exterior or interior side of Class I, II, III, IV, & V buildings as well as other insulation applications. It complies with AC 377 and is certified for application in ABAA projects.
Distinguishing Characteristics:
- High R-Value
- Zero ODP
- Moisture Vapor Retarder – Class II @ 1.3”
- High Yields
- High Closed Cell Content
- Air Barrier, ABAA Certified
- Good Dimensional Stability
- Meets ASTM E-84, FS <25, SD FEMA Flood Resistance – Class 5
- Water Resistive Barrier (AC71)
- Passed NFPA 285
- Approved in multiple UL
- Fire Resistive Assemblies
Approvals and Credentials
- Meets ASTM E-84, FS <25, SD <450 @ 4”
- FEMA Flood Resistance – Class 5
- Water Resistive Barrier (AC71)
- Passed NFPA 285
- Approved in multiple UL Fire Resistive Assemblies

TYPICAL PHYSICAL PROPERTIES
ASTM D 1622
Compressive Strength: 27 psi
ASTM D 1621
Moisture Vapor Transmission: 1.3 perm·in
ASTM E 96
ASTM D 6226
R-value @ 1” – ASTM C 518: 6.8
Air Permeance – Infiltration: 0.000 cfm/[email protected] 1.57 psf
ASTM E 283 & 2178 Exfiltration: 0.000 cfm/[email protected] 1.57 psf
STC – ASTM E 90: 31
OITC – ASTM E 90: 24
Flame Spread: <25
Smoke Dev: <450
Potential Heat—NFPA 259: 1989 Btu/ft2/in
Max Service Temperature: 180ºF
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