ISO-C1® Polyisocyanurate Pipe and Panel Insulation

Kingspan Insulation's ISO-C1 2.0 lb/ft3 density polyisocyanurate rigid foam insulation is listed under FM Approval Standard 4880, independently audited by FM. We manufacture ISO-C1 polyisocyanurate as large buns, and subsequently fabricate into insulation panels, pipe insulation, or equipment insulation. Polyisocyanurate insulation is used in a wide range of applications from chilled water pipe insulation to refrigeration insulation to cryogenic insulation. Applications include:

ISO-C1 Assembly Rendering

Insulated panels, including unfaced or structural insulated panels

  • commercial refrigeration insulation
  • warehouse insulation
  • walk-in cooler insulation and freezer insulation
  • refrigerated transportation containers
  • duct insulation

Fabricated foam shape for low to mid-temperature mechanical insulation

  • chilled water pipe insulation and equipment insulation
  • ammonia refrigerant pipe insulation
  • cryogenic insulation / LNG insulation
  • commercial HVAC insulation
  • tank insulation

Kingspan polyisocyanurate insulation is available in 2.01, 2.5, 3.0, 4.0 , and 6.0 lb/ft3 densities, and with variable sized buns which can result in reduced waste when cutting to particular dimensions - thus resulting in cost savings.

[ISO-HT pipe insulation is available for higher temperature applications such as hot water pipe insulation and low temperature steam pipe insulation.]

1FM 4880 approval only applies to the 2.0 lb/ft3 density


 

Product Specifications

Typical Physical Properties 1,2,3

ISO-C1® /2.0

ASTM C591 Max or Min

Service Temperature °F (°C)

Maximum4

300 (149)

300 (149)

Minimum

-297 (-183)

-297 (-183)

12.15 Nominal Density, D1622, lb/ft3 (kg/m3)

2.02 (33)

≥2.0 (32)

12.2 Compressive Resistance (Strength), D1621 psi (kPa)

Parallel

29.2 (201)

≥22 (150)

Perpendicular (Length)

26.8 (185)

Not specified

Perpendicular (Width)

18 (124)

Not specified

12.3 Apparent Thermal Conductivity, C1776 (aged 6 months @ 73 +/- 4˚F) Btu.in/hr.ft2.˚F
(W/m.˚K)

Mean temp of measure -265°F (-165°C)

0.07 (0.010)

Not specified

Mean temp of measure -200°F (-129°C)

0.11 (0.016)

≤0.13 (0.019)

Mean temp of measure -150°F (-101°C)

0.13 (0.019)

≤0.15 (0.022)

Mean temp of measure -100°F (-73°C)

0.16 (0.023)

≤0.17 (0.025)

Mean temp of measure -50°F (-45°C)

0.18 (0.026)

≤0.19 (0.027)

Mean temp of measure -0°F (-17°C)

0.19 (0.028)

≤0.19 (0.027)

Mean temp of measure +50°F (+10°C)

0.18 (0.026)

≤0.18 (0.026)

Mean temp of measure +75°F (+24°C)

0.19 (0.027)

≤0.19 (0.027)

Mean temp of measure +150°F (+66°C)

0.23 (0.033)

≤0.23 (0.033)

Mean temp of measure +200°F (+93°C)

0.26 (0.037)

≤0.26 (0.037)

Apparent Thermal Conductivity C518, aged, +75°F (+24°C)

0.19 (0.027)

≤0.19 (0.027)

12.4 Hot-Surface Performance, C411 at 300°F (149°C) Deflection inches (mm)

Pass @ 0.15 (3.8)

≤0.25 (6)

12.5 Water Absorption, C272, % by volume

0.47

≤2.0

12.6 Water Vapor Permeability (Transmission), E96, Perm-in (ng/Pa.s.m)

2.49(3.6)

≤4.0 (5.8)

12.7 Dimensional Stability7, D2126, % linear change

-40°F, 14 days

-0.8

≤1

158°F, 97% RH, 14 days

1.1

≤4

212°F, 14 days

0.4

≤2

12.8 Closed Cell Content, D6226, %

97

≥90

1 All properties were measured at temperatures at or near 75° unless otherwise indicated, and all test values were obtained from independent certified testing laboratories.
2 These are nominal values obtained from representative product samples, and are subject to normal manufacturing variances.
3 Average value through the foam cross section of tested sample.
4 Above 300°F, discoloration and charring will occur, potentially resulting in an increased k-factor in the discolored area.
5 Table 1 includes the paragraph numbering system utilized within Section 12 of ASTM C591.
6 Thermal Conductivities (k-factors) at Low Temperatures: ASTM C591 is the Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal, and is arguably the key Standard used by insulation system end-users and engineer/specifiers to guide decision-making. Compliance with ASTM C591 is often a prerequisite within an insulation Request for Proposal.
7 Frequent and severe thermal cycling can produce dimensional changes significantly greater than those listed here. Special design considerations must be made in systems subject to severe cycling.

Additional Product Specifications

The following properties are not specified by ASTM C591, yet are often reported

Surface Burning Characteristics8, E84

Flame Spread (@ 4 inch thickness)

≤25

Smoke Density (@ 4 inch thickness)

≤250

Leachable Chloride, C871, ppm

84

Shear Strength, C273, Average of 3 directions in psi (kPa)

22.9 (157.9)

Shear Modulus, C273, psi (kPa)

284 (1960)

Tensile Strength, D1623, psi (kPa)

Parallel

44.9 (309.6)

Perpendicular

28.3 (195.1)

Tensile Modulus, D1623, psi (kPa)

Parallel

1601 (11040)

Perpendicular (average)

928 (6400)

Flexural Strength, C203, psi (kPa)

Parallel

52 (360)

Perpendicular

37 (255)

Flexural Modulus, C203, psi (kPa)

Parallel

972 (6702)

Perpendicular

545 (3760)

Coefficient of Linear Expansion, E228, Average Value in/in.°F (m/m.°C)

35 x 10-6 (63 x 10-6)

Color

Tan

8 This numerical flame spread data is not intended to reflect hazards presented by this or any other material under actual fire conditions.

 


 

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