EPS

Expanded Polystyrene

EPS: Insulation for buildings, coldrooms, pipes and vessels

DESCRIPTION

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 as EPS) is produced as small beads containing a pentane blowing agent which is expanded by treatment with steam to form pre-foam of the required density. The pre-foam is then fed into moulds and more heat (steam) is applied.

This heat fuses the beads together to produce items in a variety of shapes and sizes or to make blocks for cutting into sheets and other products.

ENVIRONMENTAL SUSTAINABILITY

  • Zero ozone depleting potential (ODP)
  • Zero global warming potential (GWP)

THERMAL PROPERTIES

Refer to physical properties table.

FEATURES & BENEFITS

  • 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

FIRE PROPERTIES

  • Flame retardant EPS distinctly reduces the flammability and the spread of flame on the surface of foamed articles. This product is self­ extinguishing as soon as the ignition source is removed
  • FR grade (Styfrene unfaced has obtained  a  8/81/2/H&V  with and  without sprinklers when tested in accordance with SANS 428

DURABILITY

  • Odourless, inert and fully compatible with all standard building materials and components
  • Resistant to fresh water, salt water, alcohol, weak and certain strong acids, weak and strong alkalis, resistant to most vegetable and animal oils
  • EPS is vulnerable to ketones, esters, hydrocarbon chlorides, benzol, petrol, fuel and turpentine ether.
  • Will not promote corrosion of steel, copper or aluminium
  • Will not sustain vermin
  • Will not breed or promote fungi, mould or bacteria
  • Rot proof

    ACOUSTIC PROPERTIES

    EPS is not known as a good sound absorbing product due to its closed cell structure and low density.

    PHYSICAL PROPERTIES

      Properties 15D 20D 30D
      Density (kg/m3) – tolerance +/- 10% 15 20 30
      Thermal conductivity at l0° C CW/m.K) (mean temperature) 0.038 0.035 0.033
      Compressive strength (kPa)
      – @ 10% deformation
      70 110 200
      Tensile strength (kPa) 200 280 440
      Water absorption  % volume 0.5 – 1.5 0.5 – 1.5 0.5 – 1.5
      Temperature limits -110 ° C to 70 ° C

      Typical values
      * For design purpose only.

      TOOLS NEEDED FOR INSTALLATION

      Basic carpentry tools needed.

      INSTALLATION INSTRUCTIONS

      Note Adhesives/paint must be compatible with EPS. Refer to our technical solution centre.

      HANDLING & STORAGE

      As per al l items in storage, fire safety regulations should always be considered. Al l health and safety regulations should be adhered to and complied with. Product should always be stored under cover and protected from the elements.

        ENVIRONMENTAL

        • CFC and HCFC free
        • Recyclable
        • Does not decompose into harmful substances.

        Hydroboard

        is a moulded insulation board for applications where resistance to moisture and compression is required.

        DESCRIPTION

        Hydroboard is a moulded insulation board for applications where resistance to moisture and compression is required such as:

        * Insulation of surface beds.

        * Flat roof insulation above waterproofing (protected membrane).

        * Cavity insulation in masonry walls.

        Hydroboard is produced from a raw material

        specifically formulated for water resistance. Combined with a moulded finish without cut surfaces, hydroboard exhibits very  low water  absorption characteristics.

        ENVIRONMENTAL SUSTAINABILITY

        * Zero ozone depleting potential (ODP). * Zero global warming potential (GWP). * CFC and HCFC free.

        * Recyclable

        * Does not decompose into harmful substances.

        * Not suitable for food contact.

          FEATURES & BENEFITS

          * High compressive strength (compared to standard EPS)

          * Low water absorption and vapour permeability values.

          * Cost effective thermal insulation.

          * Resistant to ageing etc.

          * High impact resistance.

          FIRE PROPERTIES

          * Flame retardant EPS distinctly reduces the flammability and the spread of flame on the surface of foamed articles. This product is self-extinguishing as soon as the ignition source is removed.

          THERMAL PROPERTIES

          Refer to physical properties table.

          DURABILITY

          * Odourless, inert and fully compatible with all standard building materials and components.

          * Resistant to fresh water, salt water, alcohol, weak and certain strong acids, weak and strong alkalis, resistant to most vegetable and animal oils.

          * EPS is vulnerable to ketones, esters, hydrocarbon chlorides, benzol, petrol, fuel and turpentine ether.

          * W ill not promote corrosion of steel, copper or aluminium.

          * Will not sustain vermin.

          * Will not breed or promote fungi, mould or bacteria.

          * Rot proof.

          ACOUSTIC PROPERTIES

          EPS is not known as a good sound absorbing product due to its closed cell structure and low density. 

            APPLICATIONS

            * Brick cavity walls

            * Under surface beds

            * Perimeter insulation

            * Flat roof insulation (protected membrane)

            PHYSICAL PROPERTIES

              Properties 32D
              Density (kg/m3) – tolerance +/- 10% 32
              Thermal conductivity at lO C (W/m.K) (mean temperature) 0.032
              Compressive strength (kPa) – @ 10% deformation 22S
              Tensile strength (kPa) 440
              Water absorption  % volume < 0.9
              Temperature limits -1so ·c to 7o ·c

              DIMENSIONS

                1500 x 600 x 25 20 per pack
                1500 x 600 x 50 10 per pack
                1500 x 600 x 75 6 per pack
                1500 x 600 x 100 5 per pack
                1500 x 1200 x 25 20 per pack
                1500 x 1200 x 50 10 per pack
                1500 x 1200 x 75 6 per pack
                1500 x 1200 x 100 5 per pack

                TOOLS NEEDED FOR INSTALLATION

                * Basic carpentry tools

                * Sharp blade/fine toothed saw

                INSTALLATION   INSTRUCTIONS

                Note: Adhesives/paint must be compatible with EPS. Refer to our technical solution center.

                  HANDLING & STORAGE

                  As per all items in storage, fire safety regulations should always be considered. All health and safety regulations should be adhered to and complied with. Product should always be stored under cover and protected from the elements.

                  Polystyrene Insulation FAQ

                  Polystyrene is commonly used as an insulation material for various applications, including ceilings, walls, and pipes due to its economical cost.

                  There are two main types of polystyrene insulation: expanded polystyrene (EPS) and extruded polystyrene (XPS).

                  Both types have are made from the same raw material but are expanded differently, one is moulded in a block mould and cut to size and the other is extruded, but they are both effective insulating materials.

                  Expanded Polystyrene (EPS) is a lightweight and cost-effective insulation material. It is commonly used in the construction industry for insulating walls, Floors (also under concrete), ceilings, and roofs. EPS insulation is made by expanding tiny polystyrene beads using steam and then molding them into a large block and then cut to size.

                  These panels can be easily installed between wall studs, in ceiling joists, or on the exterior of buildings. EPS is also used for insulating pipes to prevent heat loss or condensation.

                  EPS is effective at reducing heat transfer, which makes it suitable for insulation purposes. EPS is valued for its thermal insulation properties, lightweight nature, ease of installation, and resistance to moisture.

                  1. What is polystyrene insulation?

                  Polystyrene insulation is a type of insulating material made from polystyrene foam, commonly used to reduce heat transfer in buildings and various applications.

                  2. What are the main types of polystyrene insulation?

                  The main types are expanded polystyrene (EPS) and extruded polystyrene (XPS).

                  3. How is EPS insulation made?

                  EPS insulation is made by expanding small polystyrene beads using steam and then molding them into large blocks.

                  4. What is XPS insulation?

                  XPS insulation is produced by extruding melted polystyrene through a process that creates a closed-cell structure, resulting in denser insulation boards.

                  5. Where is polystyrene insulation commonly used?

                  Polystyrene insulation is used for ceilings, walls, roofs, floors, and pipes in residential, commercial, and industrial buildings.

                  6. What are the benefits of polystyrene insulation?

                  Benefits include effective thermal insulation, lightweight construction, moisture resistance, ease of installation, and cost-effectiveness.

                  7. Can polystyrene insulation be recycled?

                  Yes, both EPS and XPS insulation can be 100% recycled. Some recycling facilities accept polystyrene foam for processing.

                  8. Is polystyrene insulation fire-resistant?

                  Polystyrene insulation is B1 fire retardant. I.e., it will melt but it will not burn on its own, it will self-extinguish the flame.

                  9. How is polystyrene insulation installed?

                  Polystyrene insulation panels are typically installed by attaching them to walls, ceilings, or floors using adhesive, mechanical fasteners, or both.

                  10. What are the differences between EPS and XPS insulation?

                  EPS is lighter and more cost-effective, while XPS is denser and has better moisture resistance.

                  11. Can polystyrene insulation reduce energy costs?

                  Yes, by minimizing heat transfer, polystyrene insulation can help reduce heating and cooling energy consumption in buildings.

                  12. Is polystyrene insulation water-resistant?

                  XPS insulation is more water-resistant than EPS, making it suitable for applications where moisture exposure is a concern.

                  13. Can polystyrene insulation be used for soundproofing?

                  Polystyrene insulation can help reduce sound transmission to some extent, especially when used as part of a multi-layered insulation system.

                  14. What are the potential health concerns associated with polystyrene insulation?

                  Polystyrene is inert, it poses no threat to your health but if cutting polystyrene with a device that produces dust then a mask is recommended.

                  15. Can polystyrene insulation be used in cold climates?

                  Yes, polystyrene insulation is effective in cold climates by preventing heat loss and improving indoor comfort.

                  16. How long does polystyrene insulation last?

                  With proper installation and maintenance, polystyrene insulation can last for many years, providing consistent thermal performance.

                  17. Can polystyrene insulation be used in combination with other insulation materials?

                  Yes, it’s common to use polystyrene insulation in conjunction with other materials to create hybrid insulation systems with improved performance.