Extruded Polystyrene (XPS)
Extruded polystyrene boards are used as an insulation for roof, cavity wall, floor, and perimeter insulation. XPS boards can also be used as wall cladding insulation & void filling. Extruded polystyrene rigid foam with special skin is manufactured by a continuous extrusion process which imparts a characteristic of closed cell structure giving the product its unique physical properties. Extruded polystyrene rigid boards have high resistance to water absorption, good physical and thermal properties. It is available with shiplap joints, tongue & groove edges depending on the application. XPS can be supplied from 35-45 Kg/m3.
Extruded Polystyrene insulation boards (in short form XPS boards) are Manufactured from General purpose polystyrene (GPPS RAW MATERIAL) which comes in the form of pallets typically @ 3- 5mm in diameter.
FR additive can be added to achieve Fire retardant grade product (FR grade), however Non fire retardant grade can be produced by omitting FR additive. Generally Fire retardant grade material is used for building an insulation other than cold store insulation. Non fire retardant grade is used for filling, floor leveling applications.
XPS foam has an innate combination of properties that make it one of the most efficient insulating materials available at lower cost. The closed-cell structure, responsible for the foam’s excellent moisture resistance, also contributes to its high compressive strength, and superior thermal performance.
Standard Dimensions of XPS Insulation Boards as below:
| Length of the Board | 2500 / 1250 mm |
| Width of the Board | 600 mm |
| Thickness of the Board | From 20 to 100 mm |
| Density range | From 30 to 48 Kg/m3 |
| Color | Sky blue / Pink / Apple Green |
| Edges | Ship lap / Square / Tongue &Groove |
APPLICATIONS of XPS BOARDS (PANELS)
There are many applications in Civil Engineering where XPS boards are currently used in order to assure:- Better protection for different climatic conditions
- Reduction of energy consumption
- Greater living comfort
- Increase of life time and value of buildings
- Interior wall insulation
- Roofing insulation
- Ceiling insulation
- Foundation insulation
- Precast concrete systems
- Support for tiles installation
- Highways insulation
- Road insulation
- Insulation under railways
- Airport runways insulation
- Waterproof protection
- Swimming pools
- Home and industrial applications
- Agricultural buildings
- Refrigerated trucks for roads and rails
- Earth shelters
- Ice rinks
- Tanks insulation
- Industrial freezers and cold rooms
| STYRO NEOPOR (EPS) | XPS (Extruded Polystyrene) |
| STYRO NEOPOR can be supplied up to from 5-1350mm | XPS can be made from 25-100 mm |
| Any length up to 6 meters or width up to 1.35 meters is possible | ONLY fix length and width is possible i.e 1250 x 600 mm |
| STYRO NEOPOR can be made from 14 to 35 kg/M3density | 30 kg/M3 is the lowest density in case of XPS |
| Thermal conductivity (K value) @ 20.9 Kg/M3 : 0.0322 WmK | Thermal conductivity K value @30 Kg/M3 : 0.032 Wmk |
| STYRO NEOPOR is Compatable with Concrete & Brick works | Smooth skin does allow concrete mortar to stick in |
| R value drift : No change in R value till the life of the Insulation | R value drift : R-value deteriorate with the age of insulation |
| Since natural air is as insulating media | Since injected gas is as insulating media |
| STYRO NEOPOR is flexible board therefore NO crack formation | Since XPS is rigid board there will crack formation |
| Due to expansion or contraction of building Especially with EIFS / ETICS | Due to expansion or contraction of building Especially with EIFS / ETICS |
| Compressive property 150 kpa ( at 30 Kg/m3) | Compressive property 210 kpa ( at 30 Kg/m3) |
| Environment IMPACT | Environment IMPACT |
| STYRO NEOPOR is CFC , HCFC free | ONLY CFC free NOT HCFC free |
| Ozone Depletion Potential ODP <0 | ODP <0 |
| Global Warming Potential GWP is : 0 | Global Warming Potential GWP is : 1300 |
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