Industry Challenge: Ultra-Low-Temperature Thermal Insulation
- LNG is stored at -162 °C; the annular space of double-walled tanks must minimise boil-off gas (BOG).
- Perlite fill must resist settling and compaction over a 20–30 year tank service life.
- Moisture ingress raises thermal conductivity and risks ice formation — material must ship dry and seal well.
- Tight particle grading is required for a stable, uniform annular-space fill.
Recommended Mineral Specification: Cryogenic Perlite
| Bulk Density | 50 – 120 kg/m³ |
| Thermal Conductivity | ≤ 0.045 W/(m·K) |
| Particle Size | 0.1 – 3 mm |
| Cryogenic Shrinkage | < 0.5 % |
| Moisture Content | < 0.5 % |
Export Packaging & FCL Loading
- 15 kg / 50 kg polywoven or paper bags; 1 t jumbo bags available
- FOB Tianjin Port, ~300 km from Lingshou base
- 20GP ≈ 5–7 t | 40HQ ≈ 8–10 t (volume-limited cargo)
Request a Free 500 g Lab Sample
Submit the form below and our technical team will arrange a 500 g cryogenic-grade sample before your container order.