Rollformed Prepainted Aluminium Shutters
 

Each shutter line is produced from two layers of aluminum with compression of polyurethane (more than 300Kg/m³) between the layers. Polyurethane is well known as heat insulator that is light, endurable, and flame retardant. Therefore the product has capability to delay or prevent robberies and control temperature.

Adventages of Polyurethane

• Oil and solvent resistant
  Polyurethane has excellent resistance to oils, solvents, fats, greases and gasoline.
• Load bearing capacity
  Polyurethane has a higher load-bearing capacity than any conventional rubber. Because of this characteristic, it is an ideal material for load wheels, heavy duty couplings, metal-forming pads, shock pads, expansion joints and machine mounts.
• Weather resistant
  Polyurethane has outstanding resistance to oxygen, ozone, sunlight and general weather conditions.
• Excellent noise abatement properties
  The hard urethanes are now being used as gears in products where engineers desire sound reduction. The soft urethanes are used to replace rubbers for improved sound/vibration dampening.
• Flex-Life
  Most formulations offer extremely high flex-life and can be expected to outlast other elastomer materials where this feature is an important requirement. Dust boots, bellows, diaphragms, belts, couplings and similar products are made from urethane for this reason.
• Heat and cold resistant
  Continuous use above 225°F is not recommended nor is urethane recommended in hot water over 175°F. At low temperatures, polyurethane will remain flexible down to -90°F. A gradual stiffening will occur at 0°F, but will not become pronounced until much lower temperatures are obtained.