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6 G Gaco
SINCE 1955
Product Data Sheet: GacoOnePass F1850
June 2017
Supersedes 3/17
GacoOnePass F1850
CLOSED CELL SPRAY FOAM INSULATION
DESCRIPTION
GacoOnePass F1850 is a two component HFC-blown (zero ozone-depleting) liquid spray system that cures to a medium-
density rigid cellular polyurethane insulation material. GacoOnePass F1850 contains polyols derived from naturally
renewable oils, post-consumer recycled plastics, and pre-consumer recycled materials.
GacoOnePass F1850 is a Class A (Class 1) fire rated foam that meets or exceeds the requirements of ICC-ES AC377
Acceptance Criteria for Foam Plastic Insulation. See lntertek Code Compliance Research Report CCRR-1043 for code
compliant application information. GacoOnePass F1850 is a Type II foam in accordance with ASTM C1029.
GacoOnePass F1850 is designed to be installed in up to five and one half inch (51/2") passes when installation instructions
are followed.
This closed cell foam is designed to provide: excellent thermal performance; air impermeable insulation; and, an integral
part of an air barrier assembly.
RECOMMENDED USES
GacoOnePass F1850 will provide excellent performance in a wide range of residential, commercial and industrial
applications where in service temperatures are between -40°F and 200°F including:
Wails Attics Concrete Slabs Cold Storage Storage Tanks
Ceilings Crawlspaces Residential Ducts Freezers Flotation
Floors Foundations Plenums Piping Industrial Applications
GacoOnePass is FEMA Class 5, the highest rating for flood-resistant materials.
PHYSICAL PROPERTIES
The following physical property tests were conducted by independent certified laboratories with traceable samples in
accordance ICC-ES AC377 and ASTM C1029 for Type II foam and ABAA D-115-010 for Air Barrier Materials and
Assemblies.
PROPERTY* ASTM TEST VALUE UNIT
Core Density D1622 2.1 ± 10% lbs/ft3
C518 R 6.5 at 1" *** h•ft2.°F/Btu
Aged R-Value **
C518 R 25 at 3.5" *** h•ft2.°F/Btu
Compressive Strength (Parallel to D1621 28.5 psi
Rise):
Tensile Strength D1623 39.7 psi
Water Vapor Permeance E96 — Method A 0.44 perm-in
Dimensional Stability
At 158°F(70°C) and 97% RH D2126 L=5.2%, W=1.1%, T=8.5% % linear change
At 176°F(80°C) and ambient RH L=-0.3%, W=-0.2%, T=-0.5% % linear change
At -4°F(-20°C) and ambient RH L=0.2%, W=0.2%, T=1 .7% % linear change
Open Cell Content D6226 4.4 %
Air Permeance @ 75Pa E2178 0.00 at 1" L/s•M2
(Infiltration/Exfiltration)
Air Barrier Assembly @ 75Pa E2357 0.007 at 1" L/s•M2
(Infiltration/Exfiltration)
Crack Bridging @ -15°F (-26°C) C1305 Pass No-cracking
Water Absorption (96 hours, 2" D2842 2.76 % byvolume
head, 70-74°F (21-23°C)
Made in the USA • gaco.com • 877.699.4226