Anti Corrosive Lining

FRP LINING

FRP lining, also known as Fiberglass Reinforced Plastic lining, is a type of coating applied to the inside of steel tanks and other structures to enhance their durability and resistance to corrosion and chemicals. It involves applying a layer of FRP material, resin reinforced with fiberglass, to the interior surface of the structure. This lining provides a protective barrier against various harsh environmental conditions and corrosive substances.

Here’s a more detailed explanation:

What it is:

FRP lining utilizes a resin-based coating, typically reinforced with fiberglass, to provide a protective layer against corrosion and chemicals.

How it’s applied:

The process involves surface preparation, followed by the application of the FRP resin and fiberglass.

Benefits:

• Corrosion Resistance: FRP lining offers excellent protection against corrosion from acids, chemicals, and other corrosive substances.
• Durability: It enhances the overall durability and longevity of the lined structure.
• Leak Proofing: The lining can create a leak-proof seal, preventing leaks and contamination.
• Chemical Resistance: FRP is resistant to a wide range of chemicals, making it suitable for various industrial applications.
• Strength: The FRP lining provides additional strength to the structure, making it more resilient to stress and impact.

Applications:

• Storage Tanks: Widely used in chemical and industrial storage tanks to protect against corrosion and chemical exposure.
• Chemical Industries: Employed in various chemical processes and equipment to prevent corrosion and ensure product purity.
• Water Tanks: Used to protect water tanks from corrosion and contamination, ensuring water quality.
• Industrial Equipment: Applied to various industrial equipment like cooling towers and pipes to enhance durability and resistance to environmental factors

RUBBER LINING

Rubber linings are a premium form of corrosion protection for some of the most severe chemical and abrasive environments. Natural and butyl rubber linings can withstand a variety of high-concentration acids and are the optimum choice for aggressive and abrasive environments. Additionally, the elasticity of a rubber lining easily accommodates thermal expansion and contraction as well as vibration.

For each polymer (natural rubber, broom-butyl, polychloroprene, nitrile), there are a variety of different blends for each application. Rubber linings applied by hand in sheets. Rubber lining tanks and piping systems can also be chemically-cured without the use of heat. Pre-cured tank lining sheet rubber is also applied to flat substrates when a heat cure is difficult or cost prohibitive. In addition to rubber lining tanks, the following types of equipment are often rubber lined: pressure vessels, tanker trailers, hoppers, chutes, pipe, impellers, filter plates, and valves. Each type of rubber lining has different properties that are critical to understand. Each substrate requires different application techniques.

Excel Engineering has skilled and experienced applicators of rubber linings. Each type and sub-type of lining material has unique characteristics and requirements for successful mixing and application. QC procedures employed during the coating application process include temperature & humidity monitoring, thickness testing, holiday testing, and hardness testing. Please contact us for our expert recommendations for your installation on the rubber lined applications that will meet your specific situation.

Uses of Rubber Linings

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

• Toughest abrasion and corrosion applications.
• Extreme chemical environments.
• Severe wear situations.

Types of Rubber for Linings

Both the types of rubber- natural rubber and synthetic 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.

industrial rubber liningtypes of rubber lining

Synthetic Rubber Linings

Various 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 200°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 rubber coating. 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.