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Daily Quiz (32)


What is another name for aliphatic polyurea?


ASTM has three specifications for elastomeric coatings to be used over spray polyurethane foam roofing. Which of the following generic types is not included?


True or false: Wet film thickness gages are inadequate for measuring thickness of fast-set polyurea coatings.


True or false: According to a recent D+D In Depth article, spray-applied polyurea roof coating can be walked on within 10 seconds after application.


True or false: Polyurea coatings require use of low-voltage holiday detectors for continuity testing.


True or false: One of the main strengths of polyureas is their ability to wet out a substrate.


True or false: The installed cost of thick-film resinous coating systems, such as high-build epoxies and polyureas, on concrete floors ranges from $3.50 to $7.00 per square foot, according to a recent D+D In Depth article.


True or false: Polyaspartic coatings cure more quickly than polyureas.


True or false: Among the performance properties of polyureas, according to a JPCL article by Mike O’Donoghue and Vijay Datta, tolerance of low-temperature application is the weakest.


True or false: Aliphatic polyurea coatings provide UV stability for their elastomeric properties but not for color and gloss retention.


Among the performance properties of polyureas, according to a JPCL article by O’Donoghue and Datta, which of the following is the weakest?


True or false: Aromatic polyureas formulated as thick-film elastomers retain a significant portion of their elastomeric properties when subject to atmospheric exposure for long periods.


Which of the following coating types is a hybrid polyurea?


True or false: According to a recent D+D article, the hybrid polyurea coating called polyaspartic has a pot life of up to two hours.


True or false: Another name for a polyaspartic coating is a hybrid polyurea.


True or false: Aliphatic polyureas do not have good color and gloss retention.


True or false: The working time or gel time of a polyurea coating is generally 10 seconds or less.


True or false: A polysiloxane is an aliphatic polyurea.


True or false: A polyaspartic coating is an aliphatic polyurea.


True or false: One system used to repair cracked concrete in a secondary containment structure was a geotextile coated with polyurea.


What is another name for an aliphatic polyurea coating?


Among the performance properties of polyureas, according to a recent JPCL article by O’Donoghue and Datta, which of the following is the weakest?


True or false: Aromatic polyureas formulated as thick-film elastomers retain a significant portion of their elastomeric properties when subject to atmospheric exposure for long periods.


A polyaspartic coating is a version of what larger generic class?


True or false: The main difference in properties between a polyurethane and a polyurea is the amount of hydrogen bonding.


Which of the following coating types might also be classified as a hybrid polyurea?


What is the alpha-numeric designation of the recently published SSPC standard describing recommended best practice in applying plural component polyureas and polyurethanes?


Which of the following is a hybrid polyurea?


What is one main difference between aromatic and aliphatic polyureas?


True or false: According to testing reported by Dudley Primeaux, properly formulated aliphatic polyurea coatings provide UV stability for their elastomeric properties but not for color and gloss retention.


True or false: Polyurea coatings tend to be slow-curing materials.


What organization authorizes and issues the label "Pure Polyurea" to distinguish the pure forms of the product from hybrid polyurea-polyurethane products?


 
 
   

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