DuPont™ Styrofoam™ Brand Panel Core 40 XPS Insulation

High-Performance Insulation for Composite Panel Applications<br>U.S. HFC Regulation Compliant Formulation

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DuPont™ Styrofoam™ Brand Panel Core 40 XPS Insulation

High-Performance Insulation for Composite Panel Applications<br>U.S. HFC Regulation Compliant Formulation

<br><b>DuPont™ Styrofoam™ Brand Panel Core 40 Extruded Polystyrene (XPS) Insulation</b> is a closed-cell, high performance core material featuring a proprietary extrusion process facilitating precise control of parameters like density, cell size and cell orientation. This process yields foam boards that can stand up to the most demanding and extensive array of composite panel applications. <p> <b>Styrofoam™ Brand Panel Core 40 XPS Insulation</b> is supplied in sheets that have been carefully engineered and planed to precise tolerances for an exceptional bonding surface. Its closed-cell structure resists absorption of water, which helps maintain panel integrity and insulating properties in low temperature applications and other environments with high humidity and moisture conditions. The foam also resists absorption of adhesives, so less glue is required for effective, long-lasting adhesion of facer materials.

Resources

Product Information Sheets Technical Documents Brochure Codes & Certifications Fire Performance Warranty

Features & Benefits

High Performance Durability
Closed Cell Structure
Bonds Dry, Treated, Damp, and Frozen Surfaces

Specifications

Testing

<b>Styrofoam™ Brand Panel Core 40 XPS Insulation</b> exhibits the properties and characteristics indicated in the table below when tested as represented. Review all instructions and (Material) Safety Data Sheet ((M)SDS) before use. Please contact DuPont at 1-833-338-7668 when additional guidance is required for writing specifications that include this product.

FIRE
UL 723
Test Method for Surface Burning Characteristics of Building Materials
Surface Burning Characteristics
Flame Spread ≤ 25
Smoke Developed ≤ 450
THERMAL
ASTM C518
Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
Thermal Resistance per inch: fresh @ 55 °F (13° C) min. fresh @ 20 °F (-7 °C) min.1
5.0 ft2•h•°F/Btu, R-value, min.
8.0 ft2•h•°F/Btu, R-value, min.
ASTM D696
Standard Test Method for Coefficient of Linear Thermal Expansion of Plastics Between −30°C and + 30°C with a Vitreous Silica Dilatometer
Coefficient of Linear Thermal Expansion
3.5 x 10-5
in/in•°F
ASTM D2126
Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging
Change in Dimensions
2.0% change, max.
STRENGTH
ASTM D1621
Standard Test Method for Compressive Properties of Rigid Cellular Plastics
Compressive Strength2
40 psi, min.
ASTM C203
Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation
Flexural Strength
60 psi, min., extruded
ASTM C203
Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation
Flexural Modulus
1,700 psi, min., extruded
ASTM D1623
Standard Test Method for Tensile and Tensile Adhesion Properties of Rigid Cellular Plastics
Tensile Strength
75 psi, min., vertical
ASTM C273
Standard Test Method for Shear Properties of Sandwich Core Materials
Shear Strength
40 psi, min.
ASTM C273
Standard Test Method for Shear Properties of Sandwich Core Materials
Shear Modulus
500 psi, min.
WATER
ASTM C272
Standard Test Method for Water Absorption of Core Materials for Sandwich Construction
Water Absorption
0.1% by volume, max.
ASTM E96
Standard Test Methods for Gravimetric Determination of Water Vapor Transmission Rate of Materials
Water Vapor Permeance3
1.1 perm, max.

1R means resistance to heat flow. The higher the R-value, the greater the insulating power.

2Vertical compressive strength is measured at 10 percent deformation or at yield, whichever occurs first. Since Styrofoam™ Brand Extruded Polystyrene Foam Insulations are visco-elastic materials, adequate design safety factors should be used to prevent long-term creep and fatigue deformation.

3Based on 1” thickness.

Code Compliance

<b>Styrofoam™ Brand Panel Core 40 XPS Insulation</b> complies with the following codes:

US Product Listings & Verifications
International Residential Code (IRC) and International Building Code (IBC); see ICC-ES ESR-4755<br>Underwriters Laboratories, Inc. (UL) Classified, see Classification Certificate D-369
Regional Code Listings & Reports
California Std. Reg. #CA T1535

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