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Daily Quiz (20)


True or false: As with epoxy non-skid coatings, siloxane non-skid coatings for ships’ decks were found to require color toppings to retain their appearance properties, according to a Naval Research Laboratory study reported in JPCL.


True or false: Siloxane penetrating sealers fill the pores of concrete and prevent moisture from exiting the concrete substrate.


True or false: Siloxane sealers are typically applied at 1-2 mils dry film thickness on concrete substrates.


What is a generic name for a hybrid coating that combines epoxy with siloxanes?


True or false: Silanes and siloxane water repellents prevent water from entering masonry structures, but allow water vapor to exit.


True or false: Siloxane sealers will not keep pressure-driven water from penetrating concrete pores.


True or false: Siloxane sealers are normally applied to concrete substrates in film thicknesses of two to three mils.


True or false: A silepoxy is formed by the combination of epoxy with siloxane.


True or False: Clear, penetrating silane and siloxane sealers have a strongly limiting effect on the ability of water vapor to exit concrete and masonry.


What degree of surface profile is required on concrete to be treated with a siloxane sealer?


True or false: Penetrating sealers such as silanes and siloxanes for concrete decks have good crack bridging capability.


Hybrid coatings that combine epoxies with siloxanes are called what?


While a concrete surface needs to be clean prior to application of a silane or siloxane sealer, it does not require substantial roughening or profiling. Why?


An epoxy-modified siloxane clear coating would be classified as what type of anti-graffiti coating?


True or false: Silane and siloxane sealers prevent both water ingress into concrete and moisture vapor from escaping the concrete.


True or false: Non-film-forming sealers, such as siloxanes, allow moisture to escape from within concrete substrates.


True or false: Siloxane sealers are typically applied at 1-2 mils dry film thickness on concrete substrates.


True or false: Clear, non-film forming masonry sealers, such as silanes and siloxanes, have little effect on vapor permeability, thereby allowing water vapor to exit the masonry substrate.


Which of the following is an anti-graffiti coating that functions by low "surface-free energy?"


Which of the following are non-film forming sealers on concrete?


 
 
   

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