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Daily Quiz (23)


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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Mitsubishi Gas Chemical America
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US Minerals
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