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Daily Quiz (21)


True or false: Intumescent coatings are formulated for wood substrates as well as for steel.


True or false: Thick-film intumescent coatings are used only to resist the impact of cellulosic fires on structural steel.


True or false: Acrylic binders are sometimes used in intumescent coatings for building interiors.


True or false: Intumescent coatings are rated according to flame spread and smoke development.


What material is necessary to create an intumescent coating?


True or False: Jet fire tests are used to determine the heat-insulating capabilities of intumescent coatings in cellulosic fires.


What type of a coating contains an acid source, a carbon source, and a blowing agent?


True or False: Fire resistance ratings of materials protected with intumescent coatings are expressed in the (degrees Fahrenheit) temperature that the coating can withstand before it fails.


What function does an intumescent coating perform?


True or false: UL will not approve an intumescent, fire-resistive coating material if it is topcoated.


What is the function of fireproofing materials such as intumescent or cementitious coatings on structural steel in buildings?


True or false: Primers and topcoats used with intumescent, fire-resistant coatings, as well as the intumescent coatings themselves, require UL approval.


True or false: Fire-resistant, intumescent coatings for steel are applied in one to three coats.


Which of the following statements about intumescent, fire-resistive coatings is not true?


True or false: Intumescent, fire-resistive coatings cannot be applied with plural-component spray equipment.


True or false: Intumescent coatings for building interiors are available only in solvent-borne formulations.


Among fire-protective coatings, how are intumescents classified?


True or false: UL will not approve an intumescent, fire-resistive coating material if it is topcoated.


True or false: To assess the cure and recoatability of a multi-coat, thin-film intumescent coating, manufacturers sometimes specify use of a Durometer test.


True or false: The fire-resistance ratings of intumescent coatings are expressed in terms of hours, indicating how long the coating can adequately protect the substrate in a fire.


What is the main reason that thin-film intumescent fire-resistant coatings are preferred in clean-room environments rather than cementitious fireproofing?


 
 
   

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