Amazines Free Article Archive - Thursday, July 07, 2022
Read about the most recent changes and happenings at
Log into your account or register as a new author. Start submitting your articles right now!
Search our database for articles.
Subscribe to receive articles emailed straight to your email account. You may choose multiple categories.
View our newest articles submitted by our authors.
View our most top rated articles rated by our visitors.
* Please note that this is NOT the ARTICLE manager
Add a new EZINE, or manage your EZINE submission.
Add fresh, free web content to your site such as newest articles, web tools, and quotes with a single piece of code!
Home What's New? Submit/Manage Articles Latest Posts Top Rated Article Search
Subscriptions Manage Ezines
 Article Archive
 Advertising (133518)
 Advice (161577)
 Affiliate Programs (34788)
 Art and Culture (73839)
 Automotive (145678)
 Blogs (75427)
 Boating (9851)
 Books (17221)
 Buddhism (4129)
 Business (1330035)
 Business News (426430)
 Business Opportunities (366473)
 Camping (10971)
 Career (72777)
 Christianity (15845)
 Collecting (11639)
 Communication (115071)
 Computers (241916)
 Construction (38925)
 Consumer (49947)
 Cooking (17079)
 Copywriting (6731)
 Crafts (18205)
 Cuisine (7548)
 Current Affairs (20307)
 Dating (45902)
 EBooks (19700)
 E-Commerce (48247)
 Education (185376)
 Electronics (83517)
 Email (6439)
 Entertainment (159837)
 Environment (28922)
 Ezine (3040)
 Ezine Publishing (5452)
 Ezine Sites (1550)
 Family & Parenting (110929)
 Fashion & Cosmetics (196540)
 Female Entrepreneurs (11851)
 Feng Shui (132)
 Finance & Investment (310507)
 Fitness (106442)
 Food & Beverages (63006)
 Free Web Resources (7939)
 Gambling (30227)
 Gardening (25192)
 Government (10512)
 Health (629894)
 Hinduism (2206)
 Hobbies (44078)
 Home Business (91593)
 Home Improvement (251135)
 Home Repair (46211)
 Humor (4717)
 Import - Export (5456)
 Insurance (45103)
 Interior Design (29589)
 International Property (3488)
 Internet (191008)
 Internet Marketing (146664)
 Investment (22856)
 Islam (1161)
 Judaism (1352)
 Law (80455)
 Link Popularity (4596)
 Manufacturing (20902)
 Marketing (99272)
 MLM (14140)
 Motivation (18232)
 Music (26998)
 New to the Internet (9496)
 Non-Profit Organizations (4048)
 Online Shopping (129728)
 Organizing (7809)
 Party Ideas (11853)
 Pets (38071)
 Poetry (2229)
 Press Release (12687)
 Public Speaking (5640)
 Publishing (7561)
 Quotes (2407)
 Real Estate (126610)
 Recreation & Leisure (95459)
 Relationships (87648)
 Research (16180)
 Sales (80345)
 Science & Technology (110281)
 Search Engines (23497)
 Self Improvement (153286)
 Seniors (6216)
 Sexuality (35997)
 Small Business (49287)
 Software (83018)
 Spiritual (23475)
 Sports (116148)
 Tax (7661)
 Telecommuting (34072)
 Travel & Tourism (308177)
 UK Property Investment (3122)
 Video Games (13382)
 Web Traffic (11763)
 Website Design (56882)
 Website Promotion (36616)
 World News (1000+)
 Writing (35837)
Author Spotlight

Myself Ram Sewak possessing indepth domain experience of more than 10 years in SEO, SEM, Web Develop...more

Areesh Ishtiaq a Top Rated SEO and Digital Marketing Guru on Upwork, working as a project manager fo...more

I am an essay writer with vast experience in data analysis, PowerPoint writing and research paper ed...more

Designpluz has steadily matured from a passionate graphics design start-up, into a full service digi...more

The Word of God is as, “Sweet as Honey”. God has Taken Me Through a Whole Lot of Things...more

The 3 Crucial Steps To Building an Industrial Paint System For Steel by Andy Potts

The 3 Crucial Steps To Building an Industrial Paint System For Steel by
Article Posted: 11/26/2020
Article Views: 2926
Articles Written: 3
Word Count: 1140
Article Votes: 1
AddThis Social Bookmark Button

The 3 Crucial Steps To Building an Industrial Paint System For Steel


What Makes Up A Coating System

Coating systems, may consists of any number of coats and combinations of materials. In most cases, coating systems will consist of 2 to 4 coats. The coating system you may use will in general be split into three main parts : 1. Primers (may include shop primer) 2. Intermediate coats (mid-coats) 3. Topcoats Each part of the paint system has a definite function, although some paints can play a dual role in a paint system. (See the paragraph later in this article “Variations”).


Primer Paints are universal for most anticorrosive coating systems and are considered the most important component of the system. The primer paint is the first coat of an industrial paint system and the base on which the rest of the coating system is applied. As a base, it must have strong adhesion to the substrate surface and must form a good basis for the next layer of the coating system. The most important properties of primers are listed as follows: • Adhesion (strong bonding to substrate). • Cohesion (high internal strength in the film). • Inertness (strong resistance to corrosion & chemicals). • Inter-coat bond (high bonding to intermediate coat). • Appropriate flexibility. Most primers for steel contain anti-corrosive pigments such as red lead, zinc powder (zinc dust), zinc chromate, zinc phosphate, calcium phosphate etc. Due to their toxicity, red lead and zinc chromate are used less frequently nowadays and certainly not in prefabrication (shop-priming) as they will release noxious or toxic fumes during welding and flame-cutting. If the coating system is an inhibitive one, it must contain the inhibitive pigments and be capable of using these pigments in a way which will passivate the metal surface and reduce its tendency to corrode. In cathodically protective primers, zinc silicates to a certain extent react with the steel surface in order to obtain an even greater and stronger adhesion. The primer must also provide a proper and compatible base for the intermediate coat. It must provide a surface that can be thoroughly wetted by the subsequent coat. The generally flat, non-glossy surface must also provide some physical adhesion to the next coat. Where primers are used for immersed conditions or tank linings they must have a chemical resistance equivalent to the remainder of the coating system in order to satisfactorily protect against the chemical cargo / substance in which it is immersed.

Intermediate Coats

In most paint systems, intermediate coats are applied between primers and topcoat(s). Intermediate coats, often also called undercoats or body coats, must adhere well to the primer; they are essential for obtaining a sufficient “build” to the paint system. The principal purposes of an intermediate is to provide : • Thickness for total coating. • Strong chemical resistance. • Resistance to moisture vapour transfer. • Increase electrical resistance for the coating system. • Strong cohesion. • Strong bonding to primer and topcoat. Midcoats should have high mechanical strength, good covering power and their colour should preferably be nearly the same as that of the top coat, but sufficiently different to allow the contrast to be obvious when applying the final coat. The colour should be lighter than the topcoat to allow good hiding by the topcoat. Often a white, or nearly white, intermediate coat is beneficial for the hiding power of the topcoat. The formulation of the intermediate coat is important. Industrial coatings that build up high thickness of the paint per coat are often termed “High Build coatings”. The body coat (or intermediate coat) must also provide strong adhesion to the primer, as well as a good base for the topcoats. The intermediate coat must have a surface ideal for good adhesion of the topcoat. Without the ability of this material to properly adhere to the primer and to provide proper adherence to the topcoats, the problem of inter-coat adhesion would cause early coating breakdown.


A tie coat is designed to improve inter-coat adhesion and/or avoid certain defects like pinholes and popping during application. The main purpose of applying a tie coat is therefore to displace air from narrow gaps and “valleys” on the steel substrate. In order to let the air out from the substrate it is important to apply a thin coat, usually in the range of 20 - 30 microns. Tie coats are mainly applied on inorganic zinc primers or before applying anti-fouling coatings.


The top coat is the last coat(s) of a paint system, designed to protect the coats beneath from the environment, to contribute to the overall corrosion protection offered by the system and to give the required colour and gloss. Top coats perform several important functions as they : • Provide a resistant seal for the coating system. • Form the initial barrier towards the environment. • Provide resistance towards chemicals, water, and weather. • Provide a tough and wear-resistant surface. • Provide a pleasing appearance.

As listed above, the finishing paint or top coat has many functions. Besides being decorative, it should be weather-resistant. The topcoat is the first line of defence against different environments such as: Wind and weather, highly polluted atmospheres, water and aggressive chemicals. It is the initial barrier of the coating system. This means that the finishing paint also must have several properties: Good colour- and gloss retention, non-chalking in bright sunlight and good adhesion under humid conditions. Moreover, the finishing paint may also be required to have good mechanical properties, i.e. resistance against scratching, physical impact and abrasion and resistance to growth. Glossy topcoats are formulated with a low pigment to vehicle ratio. In order to satisfactorily apply a topcoat over a reactive base coat containing zinc, the topcoats must be highly alkali-resistant. Such topcoats like Jotun paint would include vinyls, chlorinated rubbers, epoxies and coal tar epoxies.


A coating system need not to be composed of the three different parts; even a single coat can provide a coating system, depending upon the requirements of the coating. Inorganic zinc coatings, for example, provide an excellent one-coat system for the storage of refined oil products and many solvents. A single coating formulation applied in two or more coats may provide the best answer to a specific problem. In most barrier coating systems special intermediate coats are omitted. The surface tolerant mastics can be applied directly on to steel and therefore serves both as a primer and an intermediate coat. As for all paint systems the properties of these products must satisfy a number of requirements, like:

• Expected lifetime (design life) • Future maintenance • Classification society requirements • International standard requirements • Health, safety and environmental requirements • Cost for the total design life Hope this helped you design a coating system for your project, but feel free to add a comment below if you need further technical information.

Author Bio - Author - Andy Potts - A specialist in business, finance, Paint and spray shop consumables. View Industrial Paint Systems

Related Articles - industrial paint, jotun paint, primer paint,

Email this Article to a Friend!

Receive Articles like this one direct to your email box!
Subscribe for free today!

 Rate This Article  
Completely useless, should be removed from directory.
Minimal useful information.
Decent and informative.
Great article, very informative and helpful.
A 'Must Read'.


Do you Agree or Disagree? Have a Comment? POST IT!

 Reader Opinions 
Submit your comments and they will be posted here.
Make this comment or to the Author only:
*Your email will NOT be posted. This is for administrative purposes only.
Comments: *Your Comments WILL be posted to the AUTHOR ONLY if you select PRIVATE and to this PUBLIC PAGE if you select PUBLIC, so write accordingly.
Please enter the code in the image:

 Author Login 
Register for Author Account


Advertiser Login


   Limited Time $60 Offer!
   90  Days-1.5 Million Views  


Great Paranormal Romance


Steve Bye is currently a fiction writer, who published his first novel, ‘Looking Forward Through The...more

William Buchanan has worked in the fields of marketing, advertising, and marketing research for almo...more

A postgraduate in Fashion Technology. Shalini is a writer at heart! Writing for her is an expression...more

After 60-plus years of living I am just trying to pass down some of the information that I have lear...more

Susan Friesen, founder of the award-winning web development and digital marketing firm eVision Media...more

Stevert Mckenzie, Travel Enthusiast. ...more

At LeadGenerators, we specialise in content-led Online Marketing Strategies for our clients in the t...more

I am the editor of QUAY Magazine, a B2B publication based in the South West of the UK. I am also the...more

Author of four books and two screenplays; frequent magazine contributor. I have four other books "in...more

Hello, my name is Nevio Gardasanic. If you want to go beyond being just a perpetual beginner at thin...more

HomeLinksAbout UsContact UsTerms of UsePrivacy PolicyFAQResources
Copyright © 2022, All rights reserved.
Some pages may contain portions of text relating to certain topics obtained from under the GNU FDL license