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Technical specifications
CHEMICAL/SOLVENT/OIL/GREASE RESISTANCE
Good
CORROSION RISK
pH neutral: 6.6 +/-0.04
DENSITY
3-6 lb/ft3
DIMENSIONAL STABILITY
<7% Linear Shrinkage
FLAME SPREAD / SMOKE DEVELOPMENT
<25/50 (up to 2” wall)
FLAMMABILITY
Self-Extinguishing
HOT SURFACE PERFORMANCE (250°F FOR 96 HOURS)
No Cracking or Delamination
LEACHABLE CHLORIDES
<0.05% water-soluble chloride ions
MAIN COMPOSITION
Flame-retarded NBR/PVC-based elastomeric foam
ODOR
No Objectionable Odor
OPERATING TEMPERATURE RANGE
-297°F* (-183°C) to +220°F (104°C)
*For applications below -40 F (-40 C), contact K-FLEX  technical support.
OZONE RESISTANCE
Pass
THERMAL CONDUCTIVITY (K) BTU-IN/HR-FT2-°F (W/MK)
90°F (32°C) Mean Temp = 0.258 (0.0372)
75°F (24°C) Mean Temp = 0.245 (0.0353)
32°F (0°C) Mean Temp = 0.235 (0.0339)
UV / WEATHER RESISTANCE
Pass*
*Outdoor applications should be protected with an approved K-FLEX coating or cladding.
WATER ABSORPTION
0%
WATER VAPOR PERMEABILITY
<0.01 perm-in
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