Name:   HDPE (high density polyethylene)

 

 

HDPE is used in a variety of applications and industries where excellent impact resistance, high tensile strength, low moisture absorption and chemical and corrosion resistance properties are required.

 

Ø Good electrical insulation

Ø High flexibility (also at low temperature)

Ø The machanical strength of surface hardness , stretching intensity and rigidity is higher than LDPE.

Ø Good protection against stress cracking

Ø Super low water absorption

Ø Low steam permeability

Ø Food safe
 

Ø Poor mechanical properties

Ø Poor ventilation, easy deformation, easyaging, brittle-prone, easy stress cracking,

Ø Low surface hardness, scratch easily.

Ø Difficult to print

Ø Surface is lackluster

Ø HF welding not recommended

Ø Difficult to varnish and glue

Ø Not weather resistant

 

III.  HDPE Applications

Ø Fishing nets

Ø Commodity housing, non-load bearing components

Ø Conveyor components subject to high wea and requiring low friction

Ø Componentry in direct contact with food stuffs

Ø Parts subject to high impact stresses

Ø Gear, roller, bushing