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Drop-In Liner

Last updated: October 3, 2017

What Does Drop-In Liner Mean?

A drop-in liner is fabricated from lining material and then shipped to the installation site with the intent of keeping a surface from getting wet or to keep the surfaces moisture-free. A lining is a layer of material on the inner surface of something, usually for protection or decorative appearance.

A drop-in liner is also known as a bag liner.

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Corrosionpedia Explains Drop-In Liner

Linings prevent corrosion in a wide range of difficult applications. Linings offer a number of benefits, including:

  • Chemical resistance
  • Low permeability
  • Physical durability
  • Economical installation

Linings are commonly used in applications such as:

  • Cylindrical lining, bushing – A cylindrical metal lining used to reduce friction.
  • Furnace lining, refractory – Lining consisting of material with a high melting point, used to line the inside walls of a furnace.
  • Protective covering – A covering that is intended to protect from damage or injury.
  • Strip lining – Thin sheet strips of corrosion-resistant alloy attached by spot welding in the field to protect an unclad vessel.

The most commonly used lining materials are polymers, refractories, cement and bricks. Which materials are used for lining depends on the materials and surroundings upon which the lining is to be applied.

For example, a furnace lining is a protective and insulating layer that serves to protect the furnace parts from the extreme heat developed during smelting operations. It also prevents excessive heat loss from the external furnace surfaces, making the process more efficient. Furnace lining materials are typically ceramics or a combination of metals and ceramics. These protective layers may be made up of individual bricks, poured fluid aggregates or semi-moist aggregates that are rammed into place.

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Synonyms

Lining

Bag Liner

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