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STANDARD BACKER ROD
CLOSED CELL POLYETHYLENE FOAM


TECHNICAL INFO

TABLE II
*PHYSICAL PROPERTY ANALYSIS
Property
Value
Test Method
Density (nominal)
2.0 lbs/cu ft.
 ASTM-D-1622
Tensile Strength
50 psi
ASTM-D-1623
Compression Deflection
5 psi @ 25%
 ASTM-D-1621
Water Absorption (1)
0.03 gm/cc
ASTM-C-1016
Water Absorption (2)
0.02% by volume
 ASTM-C-509
Temperature Range
-90° - 210°F
 --
R Value
3.4
 ASTM-E96
*As determined by independent laboratory testing. Complete test reports available on request.
Water Absorption (1) "Determination of water absorption by sealant (joint filler) materials."
Water Absorption (2) Standard specification for cellular elastomeric preformed gasket and sealing material. Historic standard no longer applicable to backer rod.

STANDARD BACKER ROD INSULATION is chemically inert and will resist oil, gasoline and most other solvents. This material will not stain nor adhere to sealant materials and is non-exuding. (Refer to Table II for Typical Physical Properties)



 
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