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Technical Data For HiTHERM HT-450
HT-450 is a rigid, closed cell polyisocyanurate foam that provides exceptional insulating value at continuous operating temperatures of +400° F (202° C), with intermittent service to +450° F (230° C).
HT-450 offers operators improved energy conservation due to increased insulating efficiency, better process controls and yields, while providing upgrades in strength, durability, stability, moisture resistance and a low installed cost. It is also available as a liquid system for use in pre-insulated pipes and "in situ" applications. HT-450 can also be made available as bun stock in limited sizes. The physical and chemical properties of HT-450 are shown below.
PHYSICAL PROPERTIES *
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| Property |
ASTM Test Method
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Result
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Density, pcf (kg/m3 )
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D-1622
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2.45 (38.5)
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Compressive Strength, psi (KPa)
@ 10% Deflection
Parallel to Rise
Perpendicular to Rise
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D-1621
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30 (207)
27 (186)
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Compressive Strength after 28 day exposure to 400° F (202° C), psi (kPa)
Parallel to Rise
Perpendicular to Rise
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17.5 (120)
16.0 (110)
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Closed Cell Content, %
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D-2856
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87
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k-Factor, BTU-in/hr-ft2-° F (W/mK)
Initial
Aged 90 days @ 77° F (25° C)
Aged 90 days @ 140° F (60° C)
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C-518
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0.13 (0.018)
0.155 (0.022)
0.18 (0.026)
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Water Absorption, psf (g/cm2 )
% by Volume
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D-2842
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0.035 (0.017)
< 2
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DIMENSIONAL STABILITY, % Change
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D-2126
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.
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Dry Heat, 400 ° F (202° C)
1 Day
7 Days
28 Days
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Length
+1.3
+2.3
+1.6
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Volume
+0.1
-2.3
-4.4
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Dry Heat, 450° F (230° C)
1 Day
7 Days
28 Days
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+10.3
+7.1
+1.9
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+14.6
+1.5
-11.9
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Dry Cold, -30° F (-34° C)
1 Day
7 Days
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0
0
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0
0
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Humid Age, 158° F (70° C), 95% Relative Humidity
1 Day
7 Days
28 Days
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+1.0
+1.52
+2.02
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+0.84
+1.85
+1.85
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Service Temperature
Continuous
Intermittent
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-100° F (-73° C) to + 400° F (+202° C)
To + 450° F (+230° C)
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| * • The physical properties shown above were obtained by processing the chemicals through a conventional low pressure high shear mixing machine. Chemical temperatures were maintained at 90° F (32° C) for the isocyanate component and 80° F (27° C) for the polyol. Box pours measuring 24" x 24" x 24" (61cm x 61 cm x 61 cm) were made and the resulting foam was cured for 30 days at room temperature, approximately 77° F (25° C). Testing was done on core samples cut from the box pour. |
CHEMICAL PROPERTIES HT-450
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Property
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Component A
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Component B
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Component C
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Viscosity, cps @ 77° (25° C)
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600-800
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750-1000
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275-450
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Specific Gravity, @ 77° F (25° C)
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1.24
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1.24
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1.24
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Ratio, Parts by weight
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67
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16.5
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16.5
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Reaction Profile
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200 gram Lab. Hand mix, 3000 rpm mixer
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Start of Rise:
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15-45 secs.
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String Gel:
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60-150secs.
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Rise Time:
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90-240secs.
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Free Rise Density:
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2.1-2.3 pcf (33.7-37 kg/m3)
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HiTHERM, LLC.
14056 Artesia Blvd.
Cerritos, CA 90703
TEL/FAX (562) 483-1555/ (562) 483-1554
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Specs by Mfg.
