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Spray Polyurethane Foam

Spray Polyurethane Foam

PRODUCT HYDROXYL NO. (mgKOH/g) VISCOSITY @ 25°C ACID NO. (mgKOH/g) FUNCTIONALITY
TERATE® HT 5100 295 6,000 1 2.25
TERATE® HT 5170 355 10,250 1 2.5
TERATE® HT 5232 265 12,000 1.3 2.3
TERATE® HT 5349 305 10,000 1.3 2.45
TERATE® HT 5350 350 2,200 1.3 2.2

Typical 2-Pound Density Spray Formulation For Wall Insulation

The following starting formulations provide a guide for 2-pound density spray insulation foams. Terate® HT 5349 polyol is suitable of using either HFC-245fa or HCFO-1233zd as blowing agents. With a carefully selected catalyst package, Terate® HT 5349 polyol showed an acceptable reactivity profile in accelerated aging test with 1233zd blowing agent. ASTM E-84 Class A rating can also be achieved in Steiner tunnel test.

Formulation ID 245fa Formulation 1233zd Formulation
Terate® HT 5349 45 45
Polyether polyols 25 25
Flame retardants 12 12
Silicon surfactant 1 1
Catalysts 4 5
Additive 2 1
Water 2 2
HFC-245fa 9
HCFO-1233zd 9
B-side properties
Viscosity (cps, 25oC) 860 840
Cup Test (10 oC, 90 grams)
Cream time (s) 8 9
Gel time (s) 16 17
Tack-free time (s) 20 20
End of rise time (s) 24 21
Foam properties1
Core density (pcf) 2.28 2.27
R-value (ft2·oF·hr/(Btu.in)) TBD TBD
Compressive strength (psi)
Parallel 30 26
Perpendicular 7 18
Steiner Tunnel Test (ASTM E-84)2

Flame Spread Index < 15 < 15
Smoke Developed Index < 350 < 350

1) These physical property values are typical for this material as applied at our development facility under controlled conditions. SPF performance and actual physical properties will vary with differences in application (i.e. ambient conditions, process equipment and settings, material throughput, etc). As a result, these published properties should be used as guidelines solely for the purpose of evaluation.
2) The numerical flame spread index and smoke developed index may not reflect hazards presented by this or any other material under actual fire conditions.