Polyethylene Encasement

Polyethylene Encasement

This product is a low density (LDPE) co-extruded film with an approximate thickness of 200 microns and it is used as a supplementary cover for ductile iron, metal or plastic pipes. This film is known as an inexpensive encasement (tubular protection) for underground pipelines against corrosive soils and it is mostly applied in road and construction industries.

Since these films are mostly used for underground pipes, they should be manufactured according to ISO8180 standard and in order to achieve high resistance and durability, certain additives are required to be added while producing the film.

Typically, some soil moisture penetrates into the casing, which initially can cause corrosive properties, however, the oxygen content under the casing will run out soon and the oxidation process stops quickly.

It is recommended to use this film in the following cases:

  • Soil with low electrical resistivity, which indicates the high corrosive properties.
  • Soils with high levels of sulfates, chlorides or bacterial activity.
  • Areas with severe dust and storms.


Product Name Polyethylene Encasement
Other Names Pipe Protection Film, Pipe Coating, Pipe Cover
  • Covering underground pipes in corrosive soil
  • Flexible, strong and durable
  • Resistance against puncture, tear and cracks
  • Resistance against extreme weather and corrosion
  • Resistance to the attack of rodents and insects
  • Prevention of moisture and chemical material penetration
  • Easy transfer and installation
  • No requirement for maintenance
  • Affordable price
  • Recyclable
Thickness Typically, 200 to 400 microns
(based on the customer’s request)
Width Typically, 8 to 34 cm
(based on the customer’s request)
Color Black, Transparent, Black/Silver (multi-color)
(based on the customer’s request)
Packaging Rolls wrapped with PE film, inner core diameter is 76 mm, the core could be further supported by plastic lids on both ends of the roll.


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