EPS - Expanded Polystyrene Insulation

Kingspan manufactures EPS blocks using a molding process at densities of 1.0, 1.25, 1.5, 2.0, and 3.0 lb/ft3. Kingspan’s production capacities allow us to meet market demands for large or small volume projects. In addition, Kingspan has extensive fabrication capacity and considerable staff expertise to fabricate the blocks into sheets or virtually any shape utilizing computer-aided-design (CAD).

EPS Versatile Applications include:

  • Engineered roof deck systems:
    • Lightweight Insulating Concrete Systems: (LWIC) using Kingspan’s EPS Holey Board (thicknesses from ½” to 24”) and tapered EPS pieces embedded within the concrete are proven, high performance roof enclosure products for new steel and concrete construction as well as reroofing applications. 
    • Tapered EPS Roofing System: Predesigned pieces of EPS with a slope of 1/8, 3/16, or ¼ inch per foot as required. Each piece is labeled to match the actual CAD/CAM (computer aided design and manufacturing) requirement.                                                                                
  • Laminated panels and Cavity walls: (on-site or manufactured building systems)                          
  • Exterior and Interior Commercial and Residential Architectural Shapes
  • Fabricated Forms: Concrete, OEM, Specialty designs and applications                          
  • Geofoam: Roads, bridge approaches, plaza pool decks, parking ramps, stadium seating

Building and Construction Applications

EPS Holey Board

Other EPS Applications

  • Refrigeration panels
  • Composite Foam Cores:including spa covers
  • Marine:buoyance, flotation, docks
  • Sheet applications: exhibit and office cavity, signs, flat sheet EPS garage door cores
  • Shape Molded Packaging: corner protectors, 5L and 10L boxes
  • Flat Packaging: custom fabricated panels
  • Miscellaneous Applications: planters and nurseries
EPS Block Molding Process

Foam Core Applications

  • Composite panels with substrates (e.g. metal, fiber/resin, poly/plastic, or composites laid-over EPS cores)
  • Cores for Structural Insulated Panels (SIPS)
  • Laminated panels / Sandwich panels
  • Transportation/vehicle walls and floors
  • Customized form molds for concrete arches and other shapes in building applications
  • Special Cuts for customized applications
  • EPS/Polyiso sandwich cores
  • Cores for spa covers and similar applications

 

ASTM C578 Product Specifications

C578 Data Table

Physical Properties1

ASTM
Method

Units

Type I

Type VIII

Type II

Type IX

Type XIV2

Density (min)

D1622

lb/ft3

0.90

1.15

1.35

1.80

2.40

Compressive Strength at 10% Deformation (min)

D1621

lb/in2

10.0

13.0

15.0

25.0

40

Flexural Strength (min)

C203

lb/in2

25.0

30.0

35.0

50.0

60

Thermal Conductivity

C518

Btu.in/hr.
ft2.˚F

75°F

0.278

0.263

0.250

0.238

0.222

Thermal Resistance (1" thick)
(min)

C518

hr.ft2.˚F/BTU

75°F

3.60

3.80

4.00

4.20

4.50

Water Absorption (max)

C272

% by Volume

4.0

3.0

3.0

2.0

2.0

Water Vapor Permeability -
Transmission (max)

E96

perm-inch

5.0

3.5

3.5

2.5

2.5

Dimensional Stability (max)

D2126

%

158°F / 97%RH

2.0

2.0

2.0

2.0

2.0

-40°F / Ambient RH

2.0

2.0

2.0

2.0

2.0

Oxygen Index (min)

D2863

Volume %

24.0

24.0

24.0

24.0

24.0

1 These are nominal values obtained from representative samples internally or third party tested to meet the requirements of ASTM C578, subject to normal manufacturing variances.
2 Not available from Kingspan Miami facility

Geofoam Product Specifications

ASTM D6817

Physical Properties1

ASTM
Method

Units

EPS 152

EPS 19

EPS 22

EPS 29

EPS 392

EPS 463

Density (min)

D1622

lb/ft3

0.90

1.15

1.35

1.80

2.40

2.85

Compressive Strength (min)

C165

lb/in2

1% deformation

3.6

5.8

7.3

10.9

15.0

18.6

5% deformation

8.0

13.1

16.7

24.7

35.0

43.5

10% deformation

10.2

16.0

19.6

29.0

40.0

50.0

Flexural Strength (min)

C203

lb/in2

25.0

30.0

35.0

50.0

60.0

75.0

Oxygen Index (min)

D2863

Volume %

24

24

24

24

24

24

1 These are nominal values obtained from representative samples internally or third party tested to meet the requirements of ASTM D6817, subject to normal manufacturing variances. For additional ranges and specifications, contact Kingspan.
2 Not available from Kingspan Miami facility.
3 Only available from Kingspan Miami Facility.

 

 

Product Documents

kingspan-eps-insulation-product-data-sheet-en-us-v1-0923

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