SLABX200
High Strength EPS Slab Insulation for Concrete Foundations
High Density Polystyrene Sheet
for Concrete Slabs
Building Product Information SheetSLABX200 is a premium high compressive strength EPS slab insulation system specifically engineered for demanding concrete slab insulation applications across New Zealand. Manufactured by Expol, SLABX200 delivers superior thermal resistance, structural stability and long-term durability for residential, commercial and infrastructure projects.
This product provides reliable foundation insulation performance while supporting compliance with the H1 Calculation Method and New Zealand Building Code requirements.
Suitable Applications
- Residential concrete slabs
- Commercial slab foundations
- Industrial flooring platforms
- Engineered structural applications
Installation & Compliance
SLABX200 supports compliance with NZ Building Code requirements and the H1 Calculation Method. Installation guidance ensures correct placement and performance integration into slab systems.
Key Features & Benefits
Why Choose SLABX200?
Heavy-Duty Performance
Engineered for maximum compressive strength with 200kPa rating for the most demanding applications.
Exceptional thermal rating
R 3.0 @100mm thick
Long-Term Reliability
Superior moisture resistance and thermal stability ensure decades of consistent performance.
Learn more about specific applications
Click a solution below to view installation guides and full system details
SLABX200 Product Options & Sizes
Standard sheets are 2400 x 1200 mm, available in thicknesses from 40 mm to 600 mm. Other thicknesses are made to order on request.
| Thickness | Product R-value (m²K/W) | Sheet size (mm) |
|---|---|---|
| 40 mm | R 1.22 | 2400 x 1200 |
| 50 mm | R 1.50 | 2400 x 1200 |
| 60 mm | R 1.80 | 2400 x 1200 |
| 75 mm | R 2.20 | 2400 x 1200 |
| 85 mm | R 2.50 | 2400 x 1200 |
| 90 mm | R 2.70 | 2400 x 1200 |
| 100 mm | R 3.00 | 2400 x 1200 |
| 110 mm | R 3.25 | 2400 x 1200 |
| 120 mm | R 3.60 | 2400 x 1200 |
| 150 mm | R 4.50 | 2400 x 1200 |
| 200 mm | R 6.00 | 2400 x 1200 |
Performance, Standards & Compliance
| Specification | Detail |
|---|---|
| Compressive strength | 200 kPa at 10% deformation (AS 2498.3) |
| Thermal conductivity | K-value 0.034 W/mK |
| Thickness range | 40 mm to 200 mm — other thicknesses available on request |
| Standard sheet size | 2400 x 1200 mm |
| BRANZ testing | BRANZ Tested, Test No. TV17029-02 |
| Manufacturing standard | AS 1366 Part 3 1992 (Expanded Polystyrene) |
| R-value test method | ASTM C518-04 |
| NZ Building Code | Contributes to B2 Durability (B2.3.1 a, b), E3 Internal moisture (E3.3.1), F2 Hazardous building materials (F2.3.1 a) and H1 Energy efficiency (H1.3.1 a, H1.3.2 e) |
| Warranty | 20-year EXPOL EPS product warranty |
| Recyclability | Clean SLABX200 offcuts are actively recycled into other EXPOL products |
| Origin | New Zealand owned and manufactured |
Figures sourced from the SLABX200 product brochure and technical data sheet. For project-specific design, contact the EXPOL Tech Team.
Technical Data
| Properties | Test Results |
|---|---|
| Material | Expanded Polystyrene |
| Density | - |
| Sheet Size | 2400 mm x 1200 mm |
| Thickness / R Value | |
| 40mm | R 1.22 |
| 50mm | R 1.50 |
| 60mm | R 1.81 |
| 75mm | R 2.20 |
| 100mm | R 3.00 |
| 150 mm | R 4.50 |
| 200 mm | R 6.00 |
| Thermal Conductivity (ATSM 168) | K – Value 0.034 |
| Rate of water vapour transmission (max) measured parallel to rise at 23 deg C (AS 2498.5) | - mg/m2s |
| Permeability (m/s) | - |
| Compressive Resistance KPA at 1% (AS 2498.3) | 85 KPA |
| Compressive Resistance KPA at 2% (AS 2498.3) | 144 KPA |
| Compressive Resistance KPA at 5% (AS 2498.3) | 183 KPA |
| Compressive Resistance KPA at 10% (AS 2498.3) | 200 KPA |
| Youngs Modulus | - MPA |
| Cross breaking strength KPA (AS 2498.4) | - KPA |
| Dimensional stability of length, width & thickness (max) at 70 deg C for 7 days (AS2498.6) | - % |
| Long term water absorption by immersion (ASTM C72) | - %v / v |
| Determination of flame propagation surface ignition (AS2122.1-1993) | Medium flame duration (max): 2 sec |
| Eighth vale: 3 sec | |
| Fire behavior (AS/NZS 1530.3:1999) | Spread of flame index (0 – 10): 0 |
| Smoke developed index (0 – 10): 5 | |
| Recycled Content | 0% |
| Recyclability | EPS is 100% recyclable |
| Environmental Statement | EPS is inert and non-toxic. There are no chemicals or gases harmful to the environment emitted from EPS either during manufacture or within use. |
| Ozone Depleting Potential | EPS does not contain ozone-depleting CFC or HCFC gases, nor use them in its manufacture. As a result, EPS has zero ozone depletion potential. |
| Vermin Resistance | EPS does not offer any nutritive value. |