JM Corbond® IV
- Product Name
- JM Corbond® IV
- Product Descriptive Name
- Closed-Cell Spray Polyurethane Foam
- Product Short Description
- High-yield, closed-cell spray foam with HFO technology.
Energy Efficient - Improves energy efficiency and provides and effective air barrier.
Performance Advantages - Corbond IV has exceptional adhesion and increases racking strength.
Installer Advantages - Superior sprayability, wide processing window and high yield when properly applied.
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Fungi ResistanceNo Growth | ASTM C1338 | No Growth |
Dimensional Stability (-20°C) | ASTM D2126 | -0.2% |
Dimensional Stability (80°C) | ASTM D2126 | -1.7% |
Dimensional Stability (70°C at 97% RH) | ASTM D2126 | +1.3% |
Core Density, Nominal | ASTM D1622 | 29.5 kg/m3 (1.84 pcf) |
Open Cell Content | ASTM D6226 | 5% |
Compressive Strength (50 mm) | ASTM D1621 | 198 kPa (29 psi) |
Water Absorption | ASTM D2842 | 1.86% |
Water Vapor Transmission (50 mm specimen) | ASTM E96 | 41 ng/Pa•s•m2 |
Air Permeance at 75 Pa | ASTM E2178 | 0.0061 (L/s•m2) |
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JM Corbond Closed-Cell and Open-Cell SPF
Johns Manville's complete line of spray polyurethane foam (SPF) insulation solutions provides superior thermal energy efficiency, as well as advanced air and sound control.
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Exploring the Efficacy Of High Lift Spray Foam Insulation
Free white paper comparing the performance of JM Corbond III and high lift spray foams
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