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 |
