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SOFT
TYPE BACKER ROD
JOINT
FORMING, PLIABLE, SOFT, NON-GASSING,
POLYETHYLENE FOAM BACKER ROD
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TECHNICAL
INFO
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TABLE
II
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*PHYSICAL
PROPERTY ANALYSIS
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Property
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Nominal
Value
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Test
Method
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Density
(nominal)
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2
lbs/cu.ft.
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Tensile
Strength
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50
psi minimum
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Compression
Deflection @ 50%
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5
psi maximum
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Water
Absorption
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0.05
gm/cc
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Compression
Recovery @ 50%
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95%
minimum
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---
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Out-Gassing
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None
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¬
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Temperature
Range
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-45°
- 225° F
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---
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R
Value
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3.4
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Classification
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Type
3
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*As
determined by independent laboratory testing. Complete test
reports available upon request.
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**"Determination
of water absorption by sealant (joint filler) materials."
Prior to ASTM-C-509 standard applicable to gasket and sealing
material no longer appropriate in evaluating "sealant
(joint filler) materials."
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¬Pending
ASTM specification for sealant (joint filler) materials.
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SOFT TYPE BACKER ROD INSULATION is chemically inert and will
resist oil, gasoline and most other solvents. This material will
not stain or adhere to sealant materials and is non-exuding. (Refer
to TABLE II for Typical Physical Properties).
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