Expanded Polystyrene

Thermal insulation

Expanded Polystyrene (EPS) is a lightweight, rigid, plastic foam insulation material produced from solid beads of polystyrene. EPS contains no CFC’s and is considered ozone friendly by the Wildlife Society of South Africa.

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Descriptions
Application
Documentation

Descriptions

Polystyrene is made by polymerising styrene, which is produced by combining benzene and ethylene. The polystyrene thus produced is one of the thermoplastic materials sometimes called linear polymers. These are materials that soften on the application of heat and harden as they cool. The expanded foam (known EPS) is used in various built environment applications.

Sagex has more than 50 years experience in the manufacture of EPS and introduced the product into the South African market.

Key Facts

Resistant to vibration
Low mass
Thermally efficient
Recyclable
CFC and HCFC free, physiologically and chemically harmless
Resistant to aging, mildew, bacteria and rot
Easily cut and worked (fine toothed saw and conventional hand tools)
Easily bonded – ensure adhesive is compatible with EPS
Easily painted using high quality acrylic PVA applied by brush or spray.

Product variations

Articles information
Name	SKU	Length (mm)	Width (mm)	Thickness (mm)	R-Value (m2.K/W)
NameExpanded Polystyrene 15	SKU10923	Length (mm)2440	Width (mm)1220	Thickness (mm)25	R-Value (m2.K/W)0.66
NameExpanded Polystyrene 20	SKU10930	Length (mm)2440	Width (mm)1220	Thickness (mm)25	R-Value (m2.K/W)0.71
NameExpanded Polystyrene 30	SKU10937	Length (mm)2440	Width (mm)1220	Thickness (mm)25	R-Value (m2.K/W)0.76