HPDE -High Density Polyetylene- is a strong and robust material deviated from petrol. Unlike other polyetylenes, HDPE is heavy and firm. Approximately, 1.75 kg petrol is used to produce 1 kg HDPE raw material. HDPE is lighter then water and together with its durability it becomes a preferred material for marine manufacturing purposes. HDPE boats can be shaped by molding and extrusion methods. It can be processed in workshops and can be welded with special methods. It is difficult to combine with adhesives.
HDPE is a very strong material with a density between 150.000 and 400.000. Its resistant to water and chemicals. HDPE’s mechanical composition is extremely strong on impact and tension. Normally the tension resistance is like 225-350 kgf/cm2 and heat resistance is above 100 OC. HDPE is widely used in pressure pipes, gas distribution pipes, liquid containers, machine and home appliance parts and in insulation. Lately, because of its resistance to water, it is also used in tank and boat manufacturing.