G-Ren PU composite door and window profiles

G-Ren use polyurethane composite which is used in aerospace and auto industry for our door and window systems. Professional research shows that PU composite used for window system emits only 17% carbon emission compared to traditional aluminum.

The production of PU composite frame is done by threading glass fiber through the fiber guidance into a mold. The PU components of A and B are separately injected into the injection box, they are heated and solidified in the mold. Then the puller pulls the frame out. This is called the pultrusion process. The entire process is environmentally friendly. There is 0- VOC, no gas, liquid, and solid waste in the whole process. PU composite frame is light , strong, low thermal conductivity and excellent corrosion resistance.

PU composite profiles provide a variety of surface solutions, which comes in different colors and features, and has excellent UV resistance. It is widely used in harsh environmental areas such as marine and wind engineering and so on. PU materials are extensively used in all aspects of direct human contact, including the medical field. They are safe and harmless materials. 

G-Ren have a wide range of window systems, which are suitable for various climates and can also meet different energy-saving requirements. Doors and windows made from PU composite frames have the highest level of physical performance. PU composite window and aluminum window share 90% similarities in the processing and assembling phase. All enterprises dealing in doors and windows would be able to install PU composite windows after a short-term communication. Together with our strategic partner, Huntsman Group, we have improved the formulation of PU resin for pultrusion, making our process more stable, more efficient, and of better quality. At the same time, we make use of Terol made from recycled waste plastic, which is added to further improve the product's sustainability attributes.

Presently, G-Ren is recognized as one of the most mature manufacturers with a large production capacity of PU composite frame, which has high quality and varieties of complex frames. We are rapidly advancing in this industry globally. More and more people are choosing to use PU composite windows, on projects such as residential buildings, commercial buildings, hospitals, schools, and so on. 

It can be predicted that the polyurethane composite widows will become widely accepted by more people as one of the main window products in the near future. It will also make an outstanding contribution to global carbon reduction.