What is Rubber Lining?
is a rubber sheet
membranes used for protection from corrosion in aggressive chemical
environments. There are several rubber Lining applications some of which
include resistance to acid, chemicals and alkalis, abrasion resistance,
Uses of Rubber Linings
are used in a variety of applications like the
chemical, mining, fertilizer, electrochemical, steel, transportation and
environment sectors. Rubber linings are used for protection against
corrosion and metal and chemical impurities. Using the most advanced
technology, the linings are produced in different thicknesses to be used in
a variety of industrial situations. Available in a variety of rubber types,
the various uses of linings are as follows:
- Rubber linings are used to extend equipment life
- Linings also provide solutions for the:
- Toughest abrasion and corrosion applications.
- Extreme chemical environments.
- Severe wear situations.
Types of Rubber for Linings
Both the types of rubber-
- are used for making
different varieties of rubber linings. The type of rubber depends upon the
purpose and application of rubber lining.
Natural Soft Rubber Linings
Natural soft rubber linings are
usually made from various types of poly soft rubber. These types of rubber
have such characteristics as low hardness, high resilience, and flexibility.
They are abrasion resistant linings capable of absorbing and repulsing the
impact of abrasive forces of material handled. They are suitable for slurry
tank lining, pipe lining, pump lining etc. Natural soft rubber linings are
also used for pickling tanks, storage tanks resistance to hydrochloric acid
and sulphuric solutions.
Hard Rubber Linings
Hard rubber linings are generally made from
various types of poly hard rubber. They are chemical resistant linings with
good flexibility and high impact resistance. Some of them are graphite based
rubber linings having excellent chemical resistance at high temperatures and
some others are exhaust steam vulcanized rubber linings that are suitable
for lining vessels, which can't be cured with pressurized steam. These
various types of hard rubber linings are suitable for storage tanks,
reactors, plants which use ion exchange membrane process, pipes at high
operating temperatures etc.
Synthetic Rubber Linings
types of synthetic rubber
like chloprene rubber, butyl rubber, and hypalon rubber are used for making
these types of rubber lining.
Chloprene Rubber Lining-
These rubber linings are commonly made from
polyprene rubber having good weathering and ozone cracking resistance. They
also have better oil, acid and abrasion resistance. Chloprene rubber linings
are suitable for desalination plants, sea water piping, lining for water
box, site joints of CWP, vessels etc.
Butyl Rubber Lining- Butyl rubber
has excellent chemical resistance at high temperatures. These rubber linings
are also very durable due to the inherent low vapor permeability. Butyl
rubber linings are, therefore, good for use in vessels, pipes for acid
plants, FGD, hypochloride storage and transport.
Chlorobutyl Rubber Lining-
Chlorobutyl rubber linings made of
chlorobutyl have properties similar to butyl rubber lining but are more
easier to apply. They have heat resistance upto 200Â°F. These
linings are unaffected by cold weather or rapid temperature changes.
Hypalon Rubber Lining-
These types of rubber linings are based on
chloro sulphanated polyethylene rubber having superb chemical resistance to
oxidizing acids at high concentrations. Hypalon rubber linings are also
available in pre vulcanized form. They are good to be used in vessels, pipes
for high acid concentration, and hypo chlorite service.
EPDM Rubber Lining-
EPDM rubber has high tensile strength along
with excellent resistance to punctures, UV radiation, weathering and
microbial attack. As it is highly flexible material with a low co-efficient
of thermal expansion and contraction, EPDM lining can be applied in a wide
range of temperatures and terrains. These characteristics of EPDM rubber not
only makes it suitable for linings but also for
. As far as EPDM rubber
linings are concerned, they are suitable for all types of pond lining such
as decorative ponds, golf course ponds, irrigation ponds as well as other
water features like lakes & streams, canals and channels, reservoirs
etc. They are also suitable for lining in landfill caps, waste water
treatment facilities, and fish hatcheries.
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Applications of Rubber Linings
- Rubber Lining of Tanks: Rail Car Tanks, Elutriation
tank by acid, Removal tank of grease, Plating tank, Bottom tank.
- Mining Wear Parts
- Chemical industry: Storage tanks of hydrochloric
acid and sodium hydroxide, Reaction vessel, Heat exchanger, Filtration
equipment, Condenser, Tank lorry, Piping, Vibration mill machine, and
- Unvulcanised linings for shop and field use.
- Pre-vulcanised linings primarily for large erected
- Self-vulcanising or chemical curing rubber sheets
for repair work.