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Daily Quiz (22)

True or false: Bimetallic corrosion, such as that which results when two dissimilar metals are connected electrically in a water tank interior, occurs most rapidly when the two metals are close together rather than far apart in the galvanic series.

True or false: The application of a coating to stainless steel that is electrically connected to carbon steel in immersion service can reduce but cannot completely eliminate the effects of galvanic corrosion, according to a recent JPCL article.

True or false: Bending and forming of aluminum can be accomplished without harming its anodized finish.

What mechanism of corrosion protection does zinc phosphate provide to coatings?

In a laboratory test of metalized coatings reported recently in JPCL, which metal or alloy provided the best combination of corrosion protection and service life in immersion and intermittent immersion conditions simulating Bureau of Reclamation exposures?

High cross-link density contributes the most to what type of corrosion protection?

ISO 12944 on corrosion protection of steel with protective coatings lists how many environmental exposure classes?

What pigment is made by both a French process and an American process?

True or False: Both zinc and aluminum are used as thermal spray materials for corrosion protection of steel.

A recent 5-year inspection of a lining system on a potable water tank bottom that had suffered significant soil-side corrosion in Melbourne, Australia, showed excellent performance from what lining type?

What generic type of topcoat is often claimed to enable a two-coat system rather than a conventional 3-coat system (zinc, epoxy, polyurethane) for corrosion protection of steel?

Pascal Verbiest, in his recent JPCL article, “Developments in Zinc Primers for Corrosion Protection,” describes four mechanisms of corrosion resistance provided by zinc primers.

What are the most commonly used materials for thermal spraying when it is used for corrosion protection?

Platey pigments contribute to what mechanism of corrosion protection?

The IMO’s Performance Standard for Protective Coatings for corrosion protection of cargo tanks in crude oil carriers requires that coatings applied to new tanks must have a useful life of how many years in good condition?

True or false: Thermal spray coatings of aluminum, zinc, and their alloys for corrosion protection of steel are very surface-tolerant.

What type of coating combats corrosion mainly by preventing moisture and oxygen from reaching the steel surface?

What is the most widely used method to prevent corrosion of carbon steel?

What is the most commonly used material for thermal spraying when it is used for corrosion protection?

True or false: Any kind of metal can be used in coatings for sacrificial protection of steel.

Who publishes the Specification for the Application of Thermal Spray Coatings (Metallizing) of Aluminum, Zinc, and their Alloys and Composites for the Corrosion Protection of Steel?

Cross-link density, use of platey pigments, and thick films contribute to what mechanism of corrosion protection in a coating?


Graco Inc.
Graco Mortar Pump

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SSPC: The Society for Protective Coatings
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SSPC2016 is earlier this year, don't forget to book your plane tickets and hotel. See you soon. For more information visit

Nationwide Overspray
Profession Overspray Removal Services

The Finest Name in Safe Overspray Removal. We specialize in removing all contaminants from any surface. Family Owned and Operated for 33 years! Fully insured. Satisfaction is guaranteed.

Mitsubishi Gas Chemical America
Performance Amine 1,3-BAC

A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.

Polyval Coatings
Polyflex® Polyurea Linings

Polyflex™ new Polyurea Geotextile Membrane System has been specifically engineered to protect the environment in containment applications.

Julbert, Inc.
Built from the ground up.

Dust Collectors Available!
We deliver to your Jobsite!
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ITW Binks
Built for Tough Jobs

From Epoxies to Urethanes to other high solid coatings, the new Binks Airless 75 delivers a great finish using an ergonomic design. Visit for more information.

Clemco Industries Corp.
Powerful Protection in a Small Package

Mounts inside blast helmet, alerts operator to dangerous breathing-air condition by audible, visual, and vibratory alarms. Easily calibrated, battery operated.

Commercial Sand Blasting & Painting Ltd.
Reliable Service & Superior Workmanship

We’re ready to meet any of your protective coating and lining needs. We can work on your site or in our facilities, with large shops (60,000 sq ft), 40 acres of yard space, and cranes and forklifts on site.

Sherwin-Williams Protective & Marine Coatings

With 4,000 distribution points and 3,700+ years of experience, Sherwin-Williams delivers the products, support and expertise you need, right where you need it.

Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
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