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ISO-25 Physical Properties (Nominal 2.0 lb/ft3 density)
Note: For Physical Properties for our ISO-C1 product line, select 2.0, 2.5, 3.0. or 4.0 density.
POLYISO RIGID FOAM PIPE AND EQUIPMENT INSULATION
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ISO-25 POLYISOCYANURATE RIGID FOAM INSULATION (nominal 2 lb. density)
| Physical Properties 1 | ASTM Method | English Units 2 | Metric Units 2 | |||
| Density | D 1622 | 2.1 | lb/ft 3 | 33.64 | kg/m 3 | |
| Compressive Strength | D 1621 | |||||
| Parallel to Rise (Thickness) | 24 | lb/in 2 | 165.5 | kPa | ||
| Perpendicular to Rise (Width) | 25 | lb/in 2 | 172 | kPa | ||
| Shear Strength: Parallel and Perpendicular | C 273 | 18 | lb/in 2 | 124 | kPa | |
| Shear Modulus | C 273 | 200 | lb/in 2 | 1379 | kPa | |
| Tensile Strength: Parallel and Perpendicular | D 1623 | 29 | lb/in 2 | 199.9 | kPa | |
| Flexural Strength: Parallel and Perpendicular | C 203 | 28 | lb/in 2 | 193 | kPa | |
| Flexural Modulus | C 203 | 866 | lb/in 2 | 5971 | kPa | |
| K-Factor (10-day initial) | C 518 | 0.15 | BTU · in/hr · ft 2 · °F | 0.022 | W /m · °C | |
| K-Factor (aged) | C 518 | 0.18 | BTU · in/hr · ft 2 · °F | 0.026 | W /m · °C | |
| R-Value @ 1" (projected aged 6 mo.) | C 518 | 5.6 | hr · ft 2 · °F/BTU | 0.99 | m 2 · °C/W | |
| Closed Cell Content | D 2856 | >95 | % | >95 | % | |
| Buoyancy | TBD | lb/ft 3 | TBD | kg/m 3 | ||
| Water Absorption | C 272 | 0.013 | % by volume | 0.013 | % by volume | |
| Water Vapor Permeance | E 96 | 3.28 | perm-inch | 4.79 | ng/Pa · s · m | |
| Service Temperature 3 | -297 to +300 | °F | -183 to +149 | °C | ||
| Dimensional Stability 4,5 | D 2126 | |||||
| @ -40°F (-40°C), 7 days: Volume | < +0.1 | % Change | < +0.1 | % Change | ||
| Length | < - 0.1 | % Change | < -0.1 | % Change | ||
| @ 158°F (70°C)/97% RH, 7 days: Volume | <+1.5 | % Change | <+1.5 | % Change | ||
| Length | <-0.5 | % Change | <-0.5 | % Change | ||
| @ 212°F (100°C), 7 days: Volume | <+3.1 | % Change | <+3.1 | % Change | ||
| Length | <-0.5 | % Change | <-0.5 | % Change | ||
| Surface Burning Characteristics 6 | ||||||
| Flame Spread @ 1.5" (3.8 cm) | E 84 | 25 | 25 | |||
| Flame Spread @ 4" (10 cm) | E 84 | 25 | 25 | |||
| Smoke Density @ 1.5" (3.8cm) | E 84 | 50 | 130 | |||
| Smoke Density @ 4" (10cm) | E 84 | 170 | 130 | |||
| Hot Surface | C 411 | Pass | Pass | |||
| MAIN TABLE Footnotes: | ||||||
| 1. All properties are measured at 70°F – 75°+ unless otherwise indicated and all test values 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. | ||||||
| 4. Above 300°F, discoloration and charring will occur, resulting in an increased K-Factor in the discolored area. | ||||||
| 5. 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. | ||||||
| 6. This numerical flame spread data is not intended to reflect hazards presented by this or any other material under actual fire conditions. | ||||||