PU is short for polyurethane,and there two types of PU material,one is PUR (Polyurethane),and one is PIR (Polyisocyanurate).The main difference between them is the fire resistance,PUR is B3,and PIR is B1/B2. PU insulated panels is made by 2 thin surface sheets and PU core material.

Polyurethane sandwich panel roof with aluminum foils are the high-end products in today's metal building materials.The reason why it's one kind of the high-end products,it's because the metal panels are integrated with load-bearing,heat-insulating, fire-proof and waterproof function.The panel can be non-toxic and tasteless,and it doesn’t requires no secondary decoration.

A sandwich panels is one kind of construction material,which can be used as roof panels and wall panels for steel structure buildings.It’s combined with metal sheets and core material.The metal sheets can be galvanized steel,color coated steel,aluminum sheets,stainless sheets,aluminum foils,PVC board,etc.The core material can be expanded polyester foam,polyurethane,rock wool,mineral wool,glass wool,magnesium,etc.

The roofing panel for photovoltaic system is made of high-quality brand steel sheets for the surface,and it's continuously cold-formed and profiled.This new heat-insulating and flame-retardant material is made of D-BASF material and it is a multifunctional roofing product integrating heat preservation,energy saving and solar energy utilization.The roof rib can be directly connected with the clamp,without penetrating the roof structure.It is suitable for industrial buildings with a roof inclination of 3%.The self-cleaning high-grade panel reduces the amount of dust on the roof and keeps the building roof for a long time.Self-cleaning performance provides a systematic solution for the use of roofing solar energy.

In September 4, 2018,our polyurethane wall sandwich panels got new member join in our extended family,which is named Polyurethane wall sandwich panels with AL-MG-MN alloy metal sheets.It is was successfully developed and finished mass-production today.Compared with other sandwich panels, the biggest

Freezer insulation panelsFreezer insulation panels,are also called cold storage PU sandwich panels.With a fixed length, width and thickness, high and medium temperature cold storage generally use 10 cm thick plate, low temperature storage and frozen library generally use 12 cm or 15 cm thick plate;