Röchling GLASTHERM HT220 Insulation Sheet

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Röchling GLASTHERM HT220 Insulation Sheet
Categories:	Polymer; Thermoset; Composite SMC; Filled/Reinforced Thermoset; Polyester, TS
Material Notes:	Glastherm Grade HT220 is a thermal insulation sheet that is a highly heat-resistant material that combines low thermal conductivity with very high compressive strength at molding temperature. It is ideal for many of the more difficult molding applications. Information provided by Glastic Corporation
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Physical Properties	Original Value	Comments

Specific Gravity	1.85 g/cc	ASTM D-792
Water Absorption	0.20 %	% by wt.; ASTM D-570

Mechanical Properties	Original Value	Comments
Flexural Strength	52200 psi	ASTM D-790
Compressive Strength	35000 psi @Temperature 288 °C	ASTM D-695
	40600 psi @Temperature 200 °C	ASTM D-695
	55100 psi @Temperature 150 °C	ASTM D-695
	72500 psi @Temperature 20.0 °C	ASTM D-695
Compressive Modulus	2.61e+6 psi	ASTM D-695

Thermal Properties	Original Value	Comments
CTE, linear	13.0 µm/m-°C @Temperature 20.0 °C	Across Surface; ASTM D-696
	57.0 µm/m-°C @Temperature 20.0 °C	Across Thickness; ASTM D-696
Thermal Conductivity	0.250 W/m-K	ASTM C-177
Maximum Service Temperature, Air	450 °F
	608 °F

Descriptive Properties
Standard Color	Light Beige
Thickness Tolerance in	± 0.004

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