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Physical properties/Indroduction


Characteristics And Advantages

High Insulation Efficiency

  CENTURYLON Insulation has a low density and Closed Cell structure and that give it a low K value.

Moisture Resistance

  It’s Closed Cell structure retards the transmission of water vapor and air. It has also low water absorption.

Wide Temperature Range

  CENTURYLON Insulation insulates and prevents condensations on cold lines down to -40°F (-40°C), and retards heat loss on hot lines up to 220°F (105°C).

Easy to Install

  The flexibility of CENTURYLON Insulation permits quick, easy application on tubing, fittings and ducts.

Flame Proof

  CENTURYLON Insulation is an organic material specially compounded to be a fire retardant material.
According to UL 94 HBF test method. It has tested and is self-extinguishing.
This burning test does not define the hazards presented by this insulation material under actual fire conditions.

CENTURYLON Insulation-Average Physical Properties




Pipe Insulation
Sheet Insulation
Test Method
Density, Ib/f t3,(g/cm3 ) 4.0 Ib/f t3
(0.064g/cm3 ±10%)
4.0 Ib/f t3
(0.064g/cm3 ±10%)
Standard Measurement
Thermal Conductivity
BTU/hr. Ft2 (°F/in.)
75°F mean temp.
120°F mean temp.
C 518

Temperature Limits, °F
Upper temp., °F
Lower temp., °F

C 534
Thermal Stability
% Linear change
7 days, 220°F
4.6 4.6 ASTM
C 356
Water Absorption
% by volume
0.07 0.07 ASTM
C 209
Ozone Resistance good good ASTM D 1149 (mod.)
Flame Retardant Self-extinguish Self-extinguish UL 94 HBF (mod.)
ASTM Method, in some cases, may be modified slightly to make results more meaningful for end-use application.

*The physical properties of CENTURYLON Insulation represent typical average values obtained in accordance with accepted test methods and are not to be used for writing material specifications.