SPECIAL ANTI CORROSIVE COATING

Welcome to our Special Anti-Corrosive Coatings, where innovation meets protection.

Our coatings are engineered to provide unparalleled defense against corrosion, ensuring the longevity and integrity of your assets. Specially formulated for diverse applications, from industrial machinery to critical infrastructure, our coatings create a robust barrier against the damaging effects of corrosion. With advanced technology and a commitment to excellence.

we offer a range of solutions tailored to meet the unique demands of your projects. Invest in the durability and reliability of our Special Anti-Corrosive Coatings and safeguard your assets against the challenges of harsh environments.

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More About our Special Anticorrosive products

Coal Tar Epoxy is high build two pack coat tar epoxy coating.
Recommended Use : A hard wearing, abrasion resistance coating, with excellent resistance to immersion in salt and fresh water as well as crude oil.
Can be applied at dry film thicknesses between 120 – 400mm in one coat application. For the protection of ships bottoms, cargo and ballast tanks, jetties and any submerged or splash zone structures.
For the external protection of buried or exposed pipelines.
May be used on suitably prepared concrete substrates

NICO Zinc Rich coatings, often called NICO Zinc Rich primers, are a unique class of anticorrosive coatings that provide Galvanic Protectionto ferrous substrates. Hence it is often referred as Cold Zinc Galvanizing NICO Zinc Rich coatings are used mainly as primers with topcoats or as complete one-coat systems are widely employed for the protection of steel substrates in highly demanding and corrosive service settings.NICO Zinc Rich coatingcontains 96% pure zinc powder in its dry film.  As a result, the Metallic Zinc acts as an Anode providing ease of flow for Electrons, which neutralizes rust attack and rust creep under the surface.
ADVANTAGES
The major advantage of corrosion protection using NICO Zinc Rich coatingsis the effective elimination of pitting corrosion and prevents sub film corrosion due to rust-creep, even at points where voids, pinholes, scratches, and abrasions in the coating system exit.  This protective capability makes Zinc Rich coatings unique and widely used.  

Nico Epoxy Paints are high performance coatings for long term corrosion protection of valuable ferrous and non-ferrous surfaces. Nico Epoxy Paint is ideal for civil works, construction, lining systems for water, chemical and fuel storage tanks.

Epoxies show excellent resistance against a wide range of mild acids, alkalis and oil based solvents. It is ideal to coat many types of surface like aluminum, galvanizing, steelwork, concrete, GRP  and phenolic sheets.

NICO Epoxy Systems can be manufactured in a range of gloss levels ranging from matt of full gloss and can be matched to selected colors within the RAL color ranges.

Nico Hi Build Zinc Phosphate Primer for Super Structures NE ZP, is a heavy duty primer, ideal for applications requiring an extraordinarily high level of anticorrosive & chemical resistant properties. It has been specially designed for applications in storage tanks, marine applications, cement, refinery, textile, sugar, paper mills, food & beverage, power plants, oil fields etc. Depending on customer needs, the primer is normally over-coated with an epoxy or polyurethane finish.

Nico Hi Build ROZN Primer for Super Structures NE 101026 RO, is a heavy duty primer, ideal for applications requiring an extraordinarily high level of anticorrosive & chemical resistant properties. It has been specially designed for applications in storage tanks, marine applications, cement, refinery, textile, sugar, paper mills, food & beverage, power plants, oil fields etc. Depending on customer needs, the primer is normally over-coated with an epoxy or polyurethane finish.

 

It is a high grade rust preventive primer mainly formulated for protecting steel structures, It is quick drying, and gives good protection for longer periods even without subsequent coats. 

NICO Zinc Chromate PRIMER is a high grade readily mixed anticorrosive primer for all steel surfaces exposed to atmosphere or submerged in water, e.g. boats, ship hulls, bridges,cranes, gas canisters, engines and tankers etc. It can also be applied on galvanised iron and aluminum.

NICO Zinc Phosphate PRIMER is a high grade readily mixed anticorrosive primer for all steel surfaces exposed to atmosphere or submerged in water, e.g. boats, ship hulls, bridges,cranes, gas canisters, engines and tankers etc. It can also be applied on galvanised iron and aluminum.

 

Nico Aluminum Paint gives bright lustrous appearance and is ideal for use on machinery, metal and wood surfaces, where good heat resistant Aluminum finish is required.

Coating System & Corrosion Resistance

Paint & coating selection is a complete corrosion management system which protects the structure’s materials against corrosion for the specified operating life. Corrosion management system requires inspection and selection of an ideal coating which meets all class and client specifications.

Coating systems may integrate several layers of different types of coatings, however, the compatibility between the coats (layers) must be ensured. The coating process involves the application of non – metallic coatings, metallic coatings, or the combination of these two types of coatings on the steel surface. Metallic coatings are generally composed by non – ferrous metals, commonly zinc, aluminum and its alloys. Non – ferrous metals are more resistant to corrosion than carbon steel.

CORROSION MECHANISM

Corrosion by its simplest definition is the process of a metal returning to the material’s neutral thermodynamic state. For most materials, this means the formation of the oxides or sulfides from which they originally started when they were taken from the earth before being refined into useful engineering materials.

Most commonly used metals are unstable in the atmosphere. These unstable metals are produced by reducing ores artificially, and therefore they tend to return to their original state or to similar metallic compounds when exposed to the atmosphere. These changes are electrochemical reactions that follow the laws of thermodynamics. The corrosion reactions, or rates, are affected by ions and corroded concentrations, and explain why some reactions are reversible or controllable while others are not.

Corrosion in aqueous solutions is the most common of all corrosion process. Water, seawater, and various process streams in industry provide an aqueous medium. Moisture in the atmosphere and water in the soil, accounts for aqueous corrosion. In all cases, water is seldom present in pure form. Rather, various salts and gases remain dissolved in it, and their dissociation renders the water somewhat conducting, thus acting as an electrolyte. 

The transfer of electrons is taking place on the surface of the metal. Those locations where electrons are being given up are identified as anodes. The sites where electrons are being absorbed are denoted as cathodes. A difference in electrical potential exists between these two areas and a complete electrical circuit develops.  Negatively charged electrons flow in the direction of anode to cathode, and positively charged hydrogen ions in the solution move toward the cathode to complete the circuit. The faster the dissolution of the metal (rate of corrosion), the higher the current flow.

These ideal coating provides protection to steel structures against corrosion by both galvanic action and barrier. Moreover, the metallic coatings protect steel sacrificially at damaged areas or at small pores in the coatings.

Quality Control

 

The quality control of a coating application includes the following steps: 

  1. Surface preparation;     

  2. Coating material and its application procedures; 

  3. Environmental conditions during working procedures; 

  4. Supervision and certification of the procedures implemented during coating applications.

IlluSTRATIONS

CLIFTON FLYOVER. Coated Feb 19th, 1999