Industrial Coatings

 

An industrial coating is a paint or coating defined by its protective, rather than its aesthetic properties, although it can provide both.

 

Industrial coatings enhance the properties of a substrate and increase its service life. The right coatings can endure severe temperatures, moisture and humidity, fumes, chemicals and abrasion.

 

The most common use of industrial coatings is for corrosion control of steel. Other functions include intumescent coatings for fire resistance. The most common polymer used in industrial coatings is epoxy. Another highly common polymer used in industrial coating is a fluoropolymer.

 

Fluoropolymer Coatings

 

Fluoropolymer coatings are blends of high performance resins and fluoropolymer lubricants. These single coat thin films provide excellent

corrosion and chemical resistance. Other benefits of fluoropolymer coatings include reduced friction, resistance to galling, non stick, non wetting, electrical resistance and abrasion resistance. Fluoropolymer coatings are applied to fasteners and various OEM components to provide a longer life before replacement. 

 

Epoxy, Air Dry Coatings

 

Air Dry Epoxy is a self-priming, high gloss, corrosion resistant coating that is recommended for use where a high performance, chemically resistant coating is desired. This coating offers single coat corrosion protection at 4-6 mils thickness, as well as very good abrasion resistance. It may also be used as a 2 or 3 coat system for use in industrial environments including offshore oil and gas.

 

Epoxy, Thermal Cure Coatings

 

Thermal Cure Epoxy is a specially blended high molecular weight coating which provides outstanding corrosion resistance in most environments. This coating is also ideal for applications where an abrasion resistant coating is needed. Thermal cure epoxy offers excellent barrier protection from alkali and caustic solutions, and other harsh chemicals and solvents. 

 

Polyurethane Coatings

 

Polyurethane coatings provide a thin film, high gloss finish with exceptional weathering performance characteristics. This coating is used in virtually all industrial markets to provide a smooth durable finish that has superior resistance to corrosion, abrasion, and chemical exposure. Polyurethanes are normally used to topcoat high build epoxy and inorganic zinc.

 

Scope of Industrial coatings

 

The scope of the industrial coatings market is extremely wide. Its products range from corrosion resistant coatings to silicone sealants; glass coatings to wood coatings; wire enamel coatings to textile waterproofing. The industrial coatings market sectors are equally diverse, embracing all manner of manufacturing disciplines. Automotive paints and coatings, global aerospace coatings, protective coatings for food and beverage packaging, appliance and radiator coatings - these are just a few of the many applications making the industrial coatings market richly dynamic.

 

Classifications

 

Many classifications of industrial coatings are possible e.g. by:

  • Application - transportation, general industrial, maintenance

  • Type of Coatings - OEM. Repair, refinish, maintenance

  • Binder Chemistry - acrylic, polyester, polyurethane, epoxy, alkyd

  • Formulation - solvent borne, waterborne, solids content

  • Process - electrodeposition, brushing, spraying, coil coating, powder coating

  • Curing Technology (mainly thermosets) - air, thermal, uv curing

  • Number of functional coats - electrodeposition layer, primer surfacer, primer, base coat, clear coat

 

Industrial Coating for Rust Prevention

 

With the advent of technology iron has increasingly become an integral part of the present day industry. From huge industrial machines to simple domestic equipment, it is being used everywhere, extensively. However, rust remains to be a prominent hurdle in usage of iron, especially in industry. Over the years innumerable rust fighting solutions and techniques has been developed, yet not many have given sustainable results.

 

Industrial coatings that are tailor made to meet the demands of today’s hi-tech industries. Developed under highly scientific conditions, these rust control industrial coatings are immensely effective and user-friendly. They neither require multiple steps for application nor specially trained personnel for its use. Its simple, can be used by any one and are extremely effective. The industrial coating is scientifically proven to be highly successful for combating and killing rust. It can remove and prevent rust for a period of ten years or longer. These stop rust industrial coatings also do not require any special preparation just a clean dry surface they are highly successful under extreme weather conditions and work under water as well.

 

Coil Coatings

 

Coil coatings for pre-coating metal

 

Coil Coatings are high performance liquid coatings applied to metal strip before it is formed (pre-painting).

 

Coil coating paints are applied to continuous steel or aluminium strip in a range of colours, cured in seconds and re-coiled for delivery to the user. The strip must then be cut and formed without damaging the finish. The process reduces environmental impact as it applies paint with little waste, usually burning solvents to provide energy for curing the paint. End-users of coil coated metal do not need environmentally demanding pre-treatment and paint plants.

 

AUTOMOTIVE COATINGS

 

Lower costs, reduced air pollution, and better performance continue to be key drivers in automotive coatings, but getting car companies to adopt wholesale change can be a slow process. Some are willing to totally transform the painting process to achieve these goals; for those that aren't, the auto paint industry has more modest alternatives as well.

 

The color of a car is one of its important selling features, so it should come as no surprise that automakers fret over the performance of their multilayer coatings. First, there is an electrodeposition layer put on the steel. Then, a primer surfacer is applied, followed by the colored base coat and then the clear coat, which protects the whole paint job from the elements.

 

Exterior Automotive Coatings

 

Adhesion Promoters/Primers - Conductive and enamel adhesion promoters for polyolefin trim applications available in high solids solvent base and waterborne coatings.

 

Pigmented Basecoats - Coatings formulated to meet the color design qualities of the automotive standards over a variety of engineered plastics. These high performance coatings are available in one component and two component formulations to provide the cure latitude necessary for the various plastic trim components. These coatings provide the aesthetic and physical performance to meet OEM performance specifications.

 

Clearcoats - Environmental etch resistant clearcoats are available in one component and two component formulations for use with pigmented basecoats on fascia and exterior trim applications.

 

Interior Automotive Coatings - WB Series* - VOC compliant waterborne coatings designed to provide strong chemical resistance and superior gloss control over a variety of engineering grade plastics.
 

*Solvent base interior coatings are available for finishers without VOC constraints.

 

Special Case of Industrial Maintenance Paints

 

Maintenance paints are applied to already-painted surfaces which may or may not be totally removed. Surface preparation is key to ensuring long-term performance. Any of the old coating remaining on the substrate surface may not be well-adhered so can cause delamination problems on weathering.

 

The most expensive part of maintaining substrates is the labor cost. Much of the paint has to be applied by brushing or spraying and the construction to be maintained can be very large (e.g. bridges). The cost of the paint is a still a factor but the paint formulator has some cost flexibility in designing high weather-performance coatings - thick top coats can protect the light and moisture sensitive substrates - opaque top coats can filter out UV light before it can reach the substrates - inorganic pigments can be used to prevent colours fade.

 

Surface chalking is probably of less importance in such applications but this can be slowed by adding a sterically hindered amine to protect the binder at the surface.

 

Overview of industrial coatings design and application

 

Industrial Coatings are thin to thick material films deposited onto metal and other material to enhance properties such as color, conductivity, corrosion resistance, scratch and chip resistance etc.

The following are common industrial coating manufacturing processes

  • Industrial Powder coatings

  • Galvanizing industrial coatings or hot dip Galvanizing

  • Abrasion resistant coatings

  • Ceramic coatings

  • Plastic Coatings

  • Thermal Spray coatings

 

Industrial Coatings are available in many forms such as: aerosols, films and laminates, liquids, pastes, powders, solids, as well as diluted forms such as solvent based industrial coatings.

 

Industrial coatings may be applied by many techniques. Applicators such as brushes, rollers, screening, sponges and sprayers are most common, other widely used application form include autophoretic application, electro coating and spinning.

 

Color pigment may be added to Industrial coatings enhance the desired product appeara

 

Welcome to Asia's largest event on Coatings !!!!



 



C
ome January 2007 and the multi-billion Indian coatings industry will come live at Asia’s largest coatings show - “INDIA INTERNATIONAL COATINGS SHOW 2007”. It is the leading international exhibition of raw materials, equipment and machinery for the manufacture of paints, pigments, inks and coatings in India.  The event is scheduled at Yuba Bharati Krirangna, Salt Lake, Kolkata, India during 19th – 21st January 2007.......Read to know more


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