Truefoam 300 combines an R-value of 4.26 per inch (RSI of 0.75 per 25 mm) with high moisture resistance, and Type 4 compressive strength. These characteristics allow Truefoam 300 to serve a wide range of insulation applications, such as cavity walls, frame walls, and masonry wall interiors and exteriors.
Physical Properties Analyses show that Truefoam 300 Type 3 expanded polystyrene is comparable to other competitive materials, such as Styrospan extruded polystyrene, for the same use.
Truefoam 300 is the most cost effective product for applications requiring high R-value and moisture resistance.
This table provides a comparison of the Physical Properties of Dow SM and Truefoam 300 under the requirements of CAN / ULC –S701 - 2005.
|
Thermal Resistance (1), per inch (25mm), ASTM C518, C177 @ 75°F (24 °C) mean temp., ft² •h• °F/Btu (m2 •°C/W), R-value (RSI), min
| 0.74
M2 C/W | 5.0 (.88) | 4.26 (.75) |
| Comprehensive Strength (2), ASTM D1621, Kpa (psi), min. | 140 (20) | 30 (205) | 29.6 (204) |
| Water Absorption, ASTM D2842, % by volume, max. | 2.0% | 0.7 | 0.33 |
| Water Vapour Permeance (3) , ASTM E96, perm (ng/Pa•s• m2), max. | 130 max | 0.9 (50) | 1.89 (113.5) |
| Maximum Use Temperature, °F (°C) | 165 (74) | 165 (74) | 167 (75) |
| Coefficient of linear Thermal Expansion. ASTM D696, in/in•°F• (mm/m• °C) | 3.5x10-5 (6.3x10-2) | 3.5x10-5 (6.3x10-2) | 3.5x10-5 (6.3x10-2) |
Truefoam 300
- Test results provided by Intertek ETL SEMKO
- Manufactured in compliance with CAN/ULC-S701-2005
- CCMC Evaluation #13317-L
- CAN/ULC tested for fire resistance as per: CAN/ULC-S101-M
CAN/ULC-S107-M
CAN/ULC-S126-M
NOTE: All Truefoam EPS is manufactured with BASF Styropor and is certified by Warnock Hersey
Under certification #L22439 CCMC# 13317-L
Download: Intertek ETL (PDF)
Truefoam 300 Technical Data Sheet (pdf)