Polyurethane Sandwich Panel Specifications

Summary of common specifications of polyurethane sandwich panels
The specifications of polyurethane sandwich panels vary depending on the application scenario (such as roof panels, wall panels, cold storage panels) and manufacturers. The main parameters include effective width, core material thickness, panel thickness and mechanical properties. The following is the specification information from comprehensive authoritative sources: ‌

General specifications ‌
‌Effective width‌: usually 1000mm (roof panels and wall panels) or 950-1120mm (cold storage panels).
‌Core material thickness‌:
Roof panels/wall panels: 50mm, 60mm, 75mm, 80mm, 100mm, etc.
Cold storage panels: 100mm, 120mm, 150mm, 200mm, etc.
‌Panel steel thickness‌: 0.4-0.7mm (wall panels and cold storage panels), roof panels are slightly thicker (0.47-0.7mm).
Performance standards ‌
‌Bond strength‌: ≥0.09MPa, combustion performance reaches B1 level.
‌Flexural bearing capacity‌: ≥0.5kN/m² when the deflection is 1/200 of the support spacing.
‌Thermal conductivity‌: About 63J/(m·h·K) when the density is 0.03kg/m³.
Classification specifications‌ ‌Roof panels‌:
Panel type: mostly pure flat panels or small corrugated panels.
Covering width: fixed 1000mm, core material thickness 50-100mm.
‌Wall panels‌:
Panel type: small corrugated panels (three-dimensional decorative effect) or pure flat panels (simple visual).
Covering width: 500-1000mm, core material thickness 50-100mm.
‌Cold storage panels‌:
Features: The concave and convex groove structure enhances air tightness, and the length can be customized.
Covering width: 950-1120mm, core material thickness 100-200mm.