VKEPS
Expanded Polystyrene
50 / 75 / 100 / 150 / 200 mm
960 / 1000 / 1150 mm
From 6.5 kg/m²
Class B1 / B2
Expanded polystyrene foam delivers solid insulation performance at the lowest cost per square metre. Closed-cell structure resists moisture and won’t sag, settle or compress under self-weight.
At 6.5 kg/m² (50 mm), EPS panels are the lightest option in our range — ideal where structural payload, transport cost or remote-site handling is a concern.
All Vikkins EPS panels use B1-grade FR-modified core. The foam is self-extinguishing on flame removal and will not sustain combustion — meets GB 8624 B1 and EN 13501 E classifications.
Recommended for non-public-occupancy buildings: warehouses, prefab housing, livestock and agricultural applications. For higher fire requirements, see our PU/PIR or Rockwool panels.
| Parameter | Value |
|---|---|
| Surface Appearance | Ribbon Pressing · Pure Flat |
| Steel Thickness | 0.4–0.6 mm (outer + inner) |
| Core Density | 14 / 16 / 18 kg/m³ |
| Crest Height | 40 mm |
| Total Thickness | 50 / 75 / 100 / 150 / 200 mm |
| Effective Width | 960 / 1000 / 1150 mm |
| Fire Treatment | B1 / B2 |
| Thickness mm | Coefficient of Heat Transfer | Sound Insulation | |
|---|---|---|---|
| W/m²·K | Kcal/m²·h·°C | R (dB) | |
| 50 | 0.663 | 0.570 | 20.0 |
| 75 | 0.442 | 0.380 | 21.5 |
| 100 | 0.330 | 0.280 | 23.0 |
| 150 | 0.220 | 0.190 | — |
| 200 | 0.166 | 0.143 | — |
| Load kN/m² | Allowed Biggest Span (m) — Roofing | ||||
|---|---|---|---|---|---|
| 50 mm | 75 mm | 100 mm | 150 mm | 200 mm | |
| 0.5 | 3.5 | 4.2 | 4.8 | 6.0 | 7.0 |
| 1.0 | 2.6 | 3.2 | 3.6 | 4.5 | 5.3 |
| 1.5 | 1.8 | 2.6 | 2.8 | 3.6 | 4.2 |
| 2.0 | 1.3 | 2.0 | 2.5 | 3.0 | 3.5 |
Allowed deformation ≤ 1/250.
| Load kN/m² | Allowed Vertical Load (kN) — Wall Panel | ||||
|---|---|---|---|---|---|
| 50 mm | 75 mm | 100 mm | 150 mm | 200 mm | |
| 2.5 | 14 | 25 | 34 | 50 | 70 |
| 3.5 | 11 | 20 | 27 | 47 | 68 |
| 4.0 | 8 | 16 | 24 | 42 | 62 |
| 5.0 | 7 | 14 | 21 | 38 | 58 |
| 5.5 | 6 | 12 | 18 | 35 | 54 |
| 6.0 | 5 | 10 | 16 | 33 | 50 |
Allowed deformation ≤ 1/200.
| Item | Unit | Actual Data | Industry Standard | Certification |
|---|---|---|---|---|
| Density | kg/m³ | 14 – 18 | > 12 | GB/T 6343 |
| Thermal Conductivity | W/m·K | < 0.033 | < 0.041 | GB/T 10294 |
| Combustion Performance | Class | B1 (self-extinguishing) | B1 | GB 8624 |
| Compressive Strength | kPa | > 100 | > 60 | GB/T 8813 |
| Bending Strength | kPa | > 150 | > 120 | GB/T 8812 |
| Water Absorption | % | < 4 | < 6 | GB/T 8810 |
| Dimensional Stability | % | < 0.3 | < 1 | GB/T 8811 |
The EPS wall sandwich panel pairs an expanded polystyrene core with Galvalume or PPGI steel facings to give a light, rigid, insulated wall in a single board. It is the cost-effective choice for warehouses, workshops, and worker accommodation, where fast installation and good thermal performance matter more than fire rating. Each EPS wall sandwich panel is supplied in matched colours and lengths to suit your wall system and roof system, and is manufactured to recognised standards such as the American Institute of Steel Construction (AISC).
