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Daily Quiz (18)


True or false: According to a study reported in JPCL, two-coat systems comprised of zinc-rich primers and high-build polyaspartic topcoats were markedly inferior in performance to three-coat systems comprised of zinc-rich primers, intermediate coats, and moisture-cured polyurethane topcoats on Virginia bridges after ten years of service.


True or false? Inorganic zinc pre-construction primers for shipbuilding normally have more zinc content than inorganic zinc primers applied after fabrication.


In what way is a zinc-rich primer “rich?”


Which statement about zinc-rich primers is not true?


True or false: Inhibitive primers are often used on concrete substrates.


True or false: Etch primers are sometimes called wash primers.


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


True or False? Waterborne acrylic primers for steel are often formulated with inhibitive pigments such as zinc phosphate.


True or False? Zinc oxide is used to make zinc-rich primers.


True or false? Inorganic zinc pre-construction primers for shipbuilding normally have more zinc content than inorganic zinc primers applied after fabrication.


True or false: If a zinc-rich primer has a silicate binder, it is classified as an inorganic rather than an organic zinc-rich.


In what way is a zinc-rich primer “rich?”


True or false: In multi-coat systems, it is not always the case that the higher the zinc loading in a zinc rich primer, the better the system performance will be.


What is one typical duty of an inspector prior to the application of a primer?


True or false: A universal primer has the same function as a wash primer.


True or false: It is sometimes useful to stripe coat steel edges and irregular surfaces after the full primer coat is applied.


In what way is a zinc-rich primer “rich?”


Zinc-rich primers offer what kind of protection to steel?


 
 
   

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