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Gaco WallFoam™ 183

Gaco Wallfoam™ spray insulation makes complete sense from the moment it bonds to the frame of your home. You can actually see the seal created as liquid foam thoroughly fills every crevice and solidifies into a seamless high performace barrier, specially formulated to protect you, your family, and your home investment. Yes, foam insulation of this quality costs more, but consider the benefits: higher R-values, increased energy savings over the life of your home, low long-term maintenace costs, effective sound insulation, added structural strength, resistance to mold, pests and pollutants, and even reduced installation and construction waste. With Gaco WallFoam™, you start smart and stay strong with energy savings of up to 40% over other insulation techniques, allowing you to recoup your initial investment in as little as five years.

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Test Temp.




Nominal Density: Sprayed-in-Place 77° F (25° C) D-1622-03 lbs/ft³ 1.8 – 2.0
R Value (initial / aged)
(See Note Below)
75° F (23.9° C)
(See Note Below)
C-518 R at 1” 6.6 / 6.1
Compressive Strength: Parallel to Rise 77° F (25° C) D-1621-04a psi 42.25
Tensile Strength 77° F (25° C) D-1623 psi 65.0
Water Absorption 77° F (25° C) % 0.62
Water Vapor Transmission 77° F (25° C) E-96-05 perm-in 1.44
Dimensional Stability
(28 days)
158° F (70° C)
95% RH176° F (80° C)
Ambient RH-4° F (-20° C)
Ambient RH
D-2126-99 % Vol change 3.0-4.0-2.5
Recommended Service Temperature Range ° F/° C -40° – 200° F
(-40° – 93° C)
Closed Cell Content 77° F (25° C) D-2856C-94 % 97

NOTE: Prior to specifying and installing a polyurethane foam interior insulation system, code officials should be consulted for recommendations and approvals. Although federal, local and state building codes vary, all require that polyurethane foam insulation be covered with an approved 15-minute fire barrier. One typically approved material, for example, is 1/2″ (1 cm) gypsum wallboard. However, always check with local officials for recommendations and approvals. It is recommended that the approved thermal barrier be installed the same day the foam is applied.