PU Sandwich Panel or Mineral Wool Sandwich Panel?

As 2 usual heat insulating material, what’s the difference between polyurethane (PU) and mineral wood? Which one is suitable for me? What’s their characters? Which has cheaper price? This article will answer these questions in different aspects, including service life, heat conductivity performance, Inflaming Retarding and other characters.

Mineral wood panels

Panel Type	Inflaming Retarding PU	Mineral wool	Note
Service Life	≥30 years	3-5 years	Note 1
Heat conductivity coefficient	0.018~0.024 w/(m.k)	≤0.040 w/(m.k)	Note 2
Density	42kg/CBM	120kg/CBM	Note 3
Inflaming Retarding	Yes (A Level)	Yes (B1 Level)	Note 4
Other characters	Water-proof, moisture-proof	No water-proof, No moisture-proof	Note 5
Price	Higher than Mineral wool		Note 6
Note 1: This is decided by the material and structure of the mineral wool; Note 2: PU panels has the best heat-insulating property during all the heat-insulating materials. Better heat-insulating property means less power consumption for the cold room; Note 3: Lighter density makes the cold room more stable, and easier installation; Note 4: Mineral wool has better Inflaming Retarding character than Inflaming Retarding PU; Note 5: The service life will be shorten when the mineral wool get wet, especially when the panels are used for rooms whose target temperature are lower than 0℃ (Water vapor in the air will become liquid water when it touches the surface of the panel, and the liquid water will be absorbed by the panels little by little. This will leads to 2 results: Poorer and poorer heat insulation ability and heavier and heavier panel weight) Note 6: We’ll not charge extra cost if you agree to choose Inflaming Retarding PU panels;

PU cold room panels

PU panels are being used all over the world (Europe, America, Canada, Mexico, and Asia).

More details, please contact us !