EPS Blocks

Features & Benefits

Versatile solution

EPS blocks are available in various sizes and densities and can be cut, shaped or moulded to fit specific needs, making them ideal for insulation, void fill, architectural features and more.

Cost-Effective

EPS blocks are made from inexpensive raw materials and offer exceptional durability, making them a cost-effective choice for long-term projects.

Thermal Insulation

The closed-cell structure of the foam traps air, reducing heat transfer and helping to maintain temperature control.

Fire Resistance

Our EPS sheets contain fire resistance additives that meet Australian standards.

Specifications

EPS Block Sizes
Physical Properties - Specified
Physical Properties - Not Specified
EPS R Values
Length Width Height
5030 1040-1220 625
EPS Physical Properties in accordance with AS 1366.3 - 1992 Unit SL S M H VH Test Method
Density - nominal Kg/m3 13 16 19 24 28 N/A
Compressive stress at 10% deformation kPa 70 85 105 135 165 AS 2498.3
Cross break strength kPa 135 165 200 260 320 AS2498.4
Rate of water vapor transmission (max.)measured parallel to rise at 25'c ug/m2.s 630 580 620 460 400 AS 2498.5
Dimensional stability of length, width, thickness(max.) at 70', dry condition 7 days % 1 1 1 1 1 AS2498.6
Thermal resistance (min.) at a mean temperature of 23' (50mm sample) m2,Kw 1.13 1.17 1.2 1.25 1.28 ASTM C518
Flame Propagation Characteristics
- median flame duration (max.) SD 2 2 2 2 2 AS 2498.1
- eight value (max.) SD 3 3 3 3 3
- median volume retained % 18 22 30 40 50
- eight value (min.) % 15 19 27 37 47
EPS Physical Properties not specified in AS 1366.3 -1992 Unit SL S M H VH Test Method
Compressive strength at 1% deformation(max.) kPa 23 31 42 48 72 ASTMD1621
Compressive strength at 5% deformation(max.) kPa 59 68 95 134 164 ASTMD1621
Flexural strength (min.) kPa 150 178 218 304 337 ASTM C203
Elastic modulus (min.) kPa 2200 3100 4250 5850 7250
Water absorption by total immersion (max.) Volume % 4 4 3 3 2 ASTMC272
Buoyancy force Kg/m3 9886.5 984 981 976 972 N/A
Coefficient of thermal expansion m/m deg K 6.3 x 10*5 6.3 x 10*5 6.3 x 10*5 6.3 x 10*5 6.3 x 10*5 ASTM D696
EPS Thickness (mm)
EPS Density 150 125 100 75 60 50
SL 3.42 2.85 2.28 1.71 1.37 1.14
S 3.75 3.125 2.49 1.78 1.5 1.19
M 3.96 3.3 2.64 1.98 1.58 1.32
H 4.1 3.42 2.73 2.05 1.64 1.37
VH 4.29 3.57 2.86 2.14 1.71 1.43

Density and R Values

EPS is a versatile material with a wide range of uses, and selecting the right density is crucial for achieving desired performance characteristics. Considerations include:

  • Insulation Properties – Lower density EPS typically provides better insulation due to its higher air content, while higher density EPS offers greater strength and durability.
  • Impact Resistance – Higher density EPS is more resistant to impact and compression, which makes it suitable for packaging delicate or heavy items.
  • Ease of Cutting and Shaping – Lower density EPS is easier to cut and shape, making it suitable for applications where intricate designs or custom shapes are required.

FAQs

Is expanded polystyrene recyclable?

While Expanded Polystyrene (EPS) is not biodegradable, it can be recovered and recycled. During production, EPS waste is collected and used to manufacture new EPS products. Further, Ausdeck provides a service to all customers whereby any EPS used in packaging is collected from the job site and reused in the production mix.

Is our expanded polystyrene manufactured here in Australia?

Yes. We manufacture Expanded Polystyrene (EPS) in Carole Park, Brisbane and distribute it across Southeast Queensland and Northern New South Wales.

Discover the potential of EPS for your projects.

Contact us or request a quote today!