Lightweight VIP
Lightweight VIP selection is a balance between conductivity, finished panel mass, thickness and handling. Zhuoqing and Yunqing are distinct products; compare their specified constructions rather than treating all lightweight panels as one grade.
Request a quote or sample- Zhuoqing: λ ≤ 4.5 mW/(m·K)
- Yunqing: λ ≤ 6.0 mW/(m·K)
Zhuoqing Lightweight VIP
Zhuoqing has a specified conductivity of ≤4.5 mW/(m·K). Finished panel density depends on thickness; the density of the core alone must not be used to calculate finished panel weight.
| Property | Specification |
|---|---|
| Thermal conductivity λ | ≤ 4.5 mW/(m·K) = ≤ 0.0045 W/(m·K) |
| Length and width | 100–1000 mm |
| Thickness | 8–50 mm |
| Panel density | 120–220 kg/m³ |
| Density at 8–15 mm | 180–220 kg/m³ |
| Density at 16–35 mm | 140–180 kg/m³ |
| Density at 36–50 mm | 120–140 kg/m³ |
Yunqing Lightweight VIP
Yunqing has a specified conductivity of ≤6.0 mW/(m·K). Its specification sheet lists a broader size range than the configuration described in the aging report. Keep these two scopes separate when selecting samples.
| Property | Specification-sheet scope |
|---|---|
| Thermal conductivity λ | ≤ 6.0 mW/(m·K) = ≤ 0.0060 W/(m·K) |
| Length and width | 100–1000 mm |
| Thickness | 5–50 mm |
| Panel density in comparison example | 85 kg/m³ |
| Core density in comparison example | 45 kg/m³ |
The 85 kg/m³ value is a comparison example, not a density guarantee for every thickness. Confirm the finished mass for the selected construction.
Dimensional tolerances
Both specification sheets use the following tolerance bands. The nominal thickness range still differs: Zhuoqing starts at 8 mm and Yunqing at 5 mm. Confirm tolerances at the shared band boundaries on the approved drawing.
| Property | Range | Tolerance |
|---|---|---|
| Length / width | 100–600 mm | ±3 mm |
| Length / width | 600–1000 mm | ±5 mm |
| Thickness | 5–20 mm | ±0.5 mm |
| Thickness | 20–50 mm | ±1.5 mm |
Yunqing: aging-report configuration
The report dated 16 March 2026 describes the configuration below. Its dimensions and densities do not replace the broader specification-sheet ranges above. Historical measurement results remain specific to the tested specimens.
| Property | Reported configuration |
|---|---|
| Length / width | ≤600 mm; ±3 mm; ±5 mm for irregular shapes |
| Thickness | 8–50 mm; ±1 mm |
| Density at 8–15 mm | 90–140 kg/m³ |
| Density at 16–30 mm | 70–100 kg/m³ |
| Density at 36–50 mm | 70–100 kg/m³ |
| Service temperature | −80 to +85°C |
| Compressive strength | 180–210 kPa |
The report does not assign a density band to 31–35 mm. Do not interpolate that missing range; request the configuration-specific value.
Handling and qualification
For mobile boxes, refrigerated vehicles and appliance walls, review the finished mass, facing layers, compression at the mounting points and puncture protection. Low rebound after puncture does not mean that the vacuum or original thermal performance survives damage.
Technical documents
Complete English PDF documents are available by email request.
- Yunqing Lightweight VIP (ST-TDS-LY-01)
- Zhuoqing Lightweight VIP (ST-TDS-LZ-01)
