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Rulon Bearings

General Plastics LAST-A-FOAM® FR-3703 Polyurethane Foam
Categories: Other Engineering Material; Composite Core Material; Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane Foam, Unreinforced

Material Notes: LAST-A-FOAM® FR-3700 is a CFC-free, rigid, closed-cell, flame-retardant polyurethane foam available in densities ranging from 3 to 40 pounds per cubic foot. Tougher and less friable than our FR-6700 series, this aerospace-grade, BMS 8-133-qualified foam enables cutting of crisper edges, making it well-suited to machining complex shapes for composite cores. It 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-3700 has excellent resistance to water absorption and will not swell, crack, or split on exposure to water. LAST-A-FOAM® FR-3700 provides exceptional protection for hazardous cargo and payloads as an impact- and fire-insulation liner in transport or packaging containers. It also serves as human bone test media.

Features:

  • Stable
  • Inert
  • Resistant to most chemicals and solvents
  • Easily shaped with common woodworking tools
  • Performs well as wood replacement
  • Will not support fungal growth
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

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 0.0480 g/cc0.00173 lb/in³ASTM D1622
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 5.75.73 lbs/ft3, cut foam surface; ASTM D2240
 71.671.640 lbs/ft3, cut foam surface
Tensile Strength 0.490 MPa71.0 psiPerpendicular to Rise; ASTM D1623
 0.510 MPa74.0 psiParallel to Rise; ASTM D1623
Flexural Strength 0.421 MPa61.0 psiRise Parallel to Beam Thick.; ASTM D790 Method 1-A
 0.455 MPa66.0 psiRise Parallel to Test Span; ASTM D790 Method 1-A
Flexural Modulus 0.01480 GPa2.147 ksiRise Parallel to Test Span; ASTM D790 Method 1-A
 0.01704 GPa2.471 ksiRise Parallel to Beam Thick.; ASTM D790 Method 1-A
Compressive Strength  0.159 MPa
@Temperature 121 °C
23.0 psi
@Temperature 250 °F
Perpendicular to Rise; ASTM D1621
 0.172 MPa
@Temperature 121 °C
25.0 psi
@Temperature 250 °F
Parallel to Rise; ASTM D1621
 0.207 MPa
@Temperature 93.3 °C
30.0 psi
@Temperature 200 °F
Perpendicular to Rise; ASTM D1621
 0.255 MPa
@Temperature 93.3 °C
37.0 psi
@Temperature 200 °F
Parallel to Rise; ASTM D1621
 0.290 MPa
@Temperature 23.9 °C
42.0 psi
@Temperature 75.0 °F
Perpendicular to Rise; ASTM D1621
 0.317 MPa
@Temperature 23.9 °C
46.0 psi
@Temperature 75.0 °F
Parallel to Rise; ASTM D1621
 0.462 MPa
@Temperature -53.9 °C
67.0 psi
@Temperature -65.0 °F
Perpendicular to Rise; ASTM D1621
 0.496 MPa
@Temperature -53.9 °C
72.0 psi
@Temperature -65.0 °F
Parallel to Rise; ASTM D1621
Compressive Modulus  0.00445 GPa
@Temperature 121 °C
0.646 ksi
@Temperature 250 °F
Perpendicular to Rise; ASTM D1621
 0.00490 GPa
@Temperature 121 °C
0.711 ksi
@Temperature 250 °F
Parallel to Rise; ASTM D1621
 0.00570 GPa
@Temperature 93.3 °C
0.827 ksi
@Temperature 200 °F
Perpendicular to Rise; ASTM D1621
 0.00680 GPa
@Temperature 93.3 °C
0.986 ksi
@Temperature 200 °F
Parallel to Rise; ASTM D1621
 0.007481 GPa
@Temperature 23.9 °C
1.085 ksi
@Temperature 75.0 °F
Perpendicular to Rise; ASTM D1621
 0.008460 GPa
@Temperature 23.9 °C
1.227 ksi
@Temperature 75.0 °F
Parallel to Rise; ASTM D1621
 0.01086 GPa
@Temperature -53.9 °C
1.575 ksi
@Temperature -65.0 °F
Perpendicular to Rise; ASTM D1621
 0.01190 GPa
@Temperature -53.9 °C
1.726 ksi
@Temperature -65.0 °F
Parallel to Rise; ASTM D1621
Poissons Ratio 0.300.30
 
Electrical PropertiesMetricEnglishComments
Dielectric Constant 1.05 - 1.4
@Frequency 1e+6 Hz
1.05 - 1.4
@Frequency 1e+6 Hz
3-20 lbs/ft3
 
Thermal PropertiesMetricEnglishComments
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
Specific Heat Capacity 1.48 J/g-°C0.353 BTU/lb-°FASTM E1269
Thermal Conductivity 0.0300 W/m-K0.208 BTU-in/hr-ft²-°FASTM C518
Maximum Service Temperature, Air 121 °C250 °F
Minimum Service Temperature, Air -196 °C-320 °F
Glass Transition Temp, Tg 132 °C270 °FASTM E1824
 
Descriptive Properties
Closed Cell Content95%3 lbs/ft3, ASTM D2856, Procedure B
 98%25 lbs/ft3, ASTM D2856, Procedure B
Heat of Combustion11706 BTU/lbASTM D240
Tumbling Friability (%)040 lbs/ft3, 20 mins at 60 rpm, ASTM C421
 23.63 lbs/ft3, 20 mins at 60 rpm, ASTM C421
Water Absorption0.01 lbs/ft²at 18 lbs/ft³, ASTM D2842
 0.02 lbs/ft²at 3 lbs/ft³, ASTM D2842

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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