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Technical specifications
FLAME SPREAD / SMOKE DEVELOPMENT
<25/50* (ASTM E84)
*(up to 1” thickness)
HOT SURFACE PERFORMANCE
Pass (ASTM C411)
OPERATING TEMPERATURE RANGE 
-297°F* (-183°C) to +300°F (+149°C) (ASTM C534)
*For applications below -40°F (-40°C), contact K-FLEX technical support.
THERMAL CONDUCTIVITY 75°F (24°C) MEAN TEMP
0.263 (ASTM C177)
UV / WEATHER RESISTANCE
Pass: No change after 2000 exposure hours** (EN 13859-1 UV Radiation Artificial Aging)
**Outdoor applications should be protected with an approved K-FLEX coating or cladding.
WATER VAPOR PERMEABILITY (DRY CUP: ELASTOMERIC INSULATION)
0.1 perm-in (ASTM E96)
DENSITY
3-6 lb/ft3 (ASTM D1667)
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THERMAL
HVAC/R
PLUMBING
SOLAR
INDUSTRIAL
KÄLTEANLAGEN
LÜFTUNG
O.E.M.
OIL & GAS
RAIL & SHIPBUILDING
SPECIAL PRODUCTS
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