General Plastics LAST-A-FOAM® FR-6725 Polyurethane Foam

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General Plastics LAST-A-FOAM® FR-6725 Polyurethane Foam
Categories:	Other Engineering Material; Composite Core Material; Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane Foam, Unreinforced
Material Notes:	Product Description: LAST-A-FOAM® FR-6700 is a CFC-free, rigid, closed-cell, flame-retardant polyurethane foam for aircraft composite core that withstands process temperatures up to 250°F. It is available in densities ranging from 10 to 25 pounds per cubic foot and exhibits a high strength-to-weight ratio due to its cellular structure and cross-linked resin. Because of its closed-cell structure, LAST-A-FOAM® FR-6700 has great resistance to water absorption and will not swell, crack, or split on exposure to water. Product Feature: Stable Inert Will not support fungal growth Resistant to most chemicals and solvents Easily shaped with common woodworking tools Performs well as wood replacement Applications: Models and design prototypes Composite Core Honeycomb edge close-out for aircraft interior sandwich panels used in overhead storage bins, passenger cabin class dividers, galleys and lavatories Vacuum form dies and mold patterns Information provided by General Plastics Manufacturing Company
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Physical Properties	Metric	English	Comments

Density	0.400 g/cc	0.0145 lb/in³	ASTM D1622

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	45	45	cut foam surface; ASTM D2240
Tensile Strength	7.688 MPa	1115 psi	Parallel to Rise; ASTM D1623
	7.777 MPa	1128 psi	Perpendicular to Rise; ASTM D1623
Flexural Strength	11.40 MPa	1653 psi	Rise Parallel to Beam Thick.; ASTM D790
	11.71 MPa	1699 psi	Rise Parallel to Test Span; ASTM D790
Flexural Modulus	0.39521 GPa	57.321 ksi	Rise Parallel to Test Span; ASTM D790
	0.40485 GPa	58.718 ksi	Rise Parallel to Beam Thick.; ASTM D790
Compressive Strength	4.77 MPa @Temperature 121 °C	692 psi @Temperature 250 °F	Parallel to Rise; ASTM D1621
	5.23 MPa @Temperature 121 °C	759 psi @Temperature 250 °F	Perpendicular to Rise; ASTM D1621
	7.798 MPa @Temperature 93.3 °C	1131 psi @Temperature 200 °F	Perpendicular to Rise; ASTM D1621
	7.819 MPa @Temperature 93.3 °C	1134 psi @Temperature 200 °F	Parallel to Rise; ASTM D1621
	13.96 MPa @Temperature 23.9 °C	2025 psi @Temperature 75.0 °F	Perpendicular to Rise; ASTM D1621
	14.03 MPa @Temperature 23.9 °C	2035 psi @Temperature 75.0 °F	Parallel to Rise; ASTM D1621
	21.38 MPa @Temperature -53.9 °C	3101 psi @Temperature -65.0 °F	Parallel to Rise; ASTM D1621
	21.42 MPa @Temperature -53.9 °C	3107 psi @Temperature -65.0 °F	Perpendicular to Rise; ASTM D1621
Compressive Modulus	0.16431 GPa @Temperature 121 °C	23.831 ksi @Temperature 250 °F	Parallel to Rise; ASTM D1621
	0.16632 GPa @Temperature 121 °C	24.122 ksi @Temperature 250 °F	Perpendicular to Rise; ASTM D1621
	0.24667 GPa @Temperature 93.3 °C	35.777 ksi @Temperature 200 °F	Perpendicular to Rise; ASTM D1621
	0.2477 GPa @Temperature 93.3 °C	35.93 ksi @Temperature 200 °F	Parallel to Rise; ASTM D1621
	0.34421 GPa @Temperature 23.9 °C	49.924 ksi @Temperature 75.0 °F	Perpendicular to Rise; ASTM D1621
	0.35367 GPa @Temperature 23.9 °C	51.296 ksi @Temperature 75.0 °F	Parallel to Rise; ASTM D1621
	0.39992 GPa @Temperature -53.9 °C	58.004 ksi @Temperature -65.0 °F	Perpendicular to Rise; ASTM D1621
	0.40058 GPa @Temperature -53.9 °C	58.099 ksi @Temperature -65.0 °F	Parallel to Rise; ASTM D1621
Poissons Ratio	0.30	0.30

Thermal Properties	Metric	English	Comments
CTE, linear	63.0 µm/m-°C @Temperature -45.6 - 93.3 °C	35.0 µin/in-°F @Temperature -50.0 - 200 °F	GP Method
	72.0 µm/m-°C @Temperature 23.9 - 121 °C	40.0 µin/in-°F @Temperature 75.0 - 250 °F
Specific Heat Capacity	1.57 J/g-°C	0.376 BTU/lb-°F	ASTM E1269
Thermal Conductivity	0.0597 W/m-K	0.414 BTU-in/hr-ft²-°F	ASTM C518
Maximum Service Temperature, Air	121 °C	250 °F
Minimum Service Temperature, Air	-196 °C	-320 °F
Glass Transition Temp, Tg	135 °C	275 °F	ASTM E1824

Descriptive Properties
Closed Cell Content	68%		25 lbs/ft³
	96%		10 lbs/ft³
Heat of Combustion	10939 BTU/lb		ASTM D240
Tumbling Friability (%)	1		25 lbs/ft³
	10.89		10 lbs/ft³
Water Absorption	0.01 lbs/ft²		18 lbs/ft³
	0.049 lbs/ft²		10 lbs/ft³

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PGENR041 / 186827

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