Lightweight DuPont™ Isocast™ R Polyisocyanurate Insulation boards are designed to fit between two layers of concrete and are ideal for insulating precast, tilt-up or poured-in-place concrete panel walls. A patented foam core provides high R-value and moisture resistance for continuous insulation that won’t break a sweat.
Isocast™ R
DuPont™ Isocast™ R Polyisocyanurate Insulation is designed for use in concrete panel walls (precast, tilt-up or poured-in-place), where it is sandwiched between two layers of concrete with connectors holding together the finished panel. The polyisocyanurate core provides superior insulation, while the facer makes the board virtually moisture-resistant. Because it has no exposed metal facings, DuPont™ Isocast™ R will not corrode or react chemically with the concrete in sandwich panel applications.
Exceptional buildings begin with superior wall performance. DuPont’s proven, compatible products for exterior, precast and tilt-up walls help you design with confidence and work smarter, not harder.
Trilaminate (aluminum/poly/kraft) facers |
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Lightweight |
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Economical thermal performance |
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  | Method | Unit | Value |
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Thermal Resistance<sup>1</sup> | ASTM C518 @ 75°F mean temp | ft2/Btu | 6.5 |
Compressive Strength<sup>2</sup> | ASTM D1621 | psi | 25 |
Flexural Strength<sup></sup> | ASTM C203 | psi | 40 |
Water Absorption<sup></sup> | ASTM C209 | % by volume | 0.1 |
Water Vapor Permeance<sup></sup> | ASTM E96 | perms | <0.03 |
Maximum Use Temperature<sup></sup> | - | 75°F |
RSI | Thickness (mm) | Board Size (metre) |
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2.29 | 50 | 1.22 x 2.44 |