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Daily Quiz (26)


What is the main difference between penetrating sealers classified as water-repellents and those classified as water-repellent preservatives in treating wood substrates?


True or false: Penetrating sealers such as siloxanes do not allow moisture to escape from masonry and concrete.


What organization maintains an approved product list for sealers and finishes used on athletic wood floors?


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? Some historic preservationists might object to the use of a clear, penetrating sealer on the masonry walls of an historic structure.


Which of the following organizations provides information about good practice in the selection and use of sealants in expansion joints?


True or false: Preservationists prefer penetrating sealers over coatings to protect masonry substrates on historic structures.


What kind of concrete sealers penetrate the pores of the concrete and form little if any film build?


Which of the following organizations provides information about good practice in the selection and use of sealants in expansion joints?


What chemistry type is used to create sealers that penetrate and line the pores of concrete?


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


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?


Penetrating sealers are sometimes avoided by conservators on the masonry substrates of historic structures for what main reason?


True or false: Parking decks are always sealed with penetrating sealers like silanes.


True or false: All sealers for concrete substrates form a thin film on the surface of the concrete.


True or false: Non-film-forming coatings used as sealers on concrete and masonry cannot be pigmented to alter the appearance properties of substrates.


Specifications for athletic floor sealers and finishes, together with an approved products list, are maintained by what association?


True or false: A coating system on an exterior concrete block wall must provide protection from wind-driven rain and, if moisture vapor diffuses from inside to outside, be sufficiently permeable to allow vapor to exit the wall.


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: Preservationists always prefer penetrating sealers over coatings on masonry substrates in work to preserve historic structures.


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


Which of the following organizations provides information about good practice in the selection and use of sealants in expansion joints?


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.


Penetrating sealers are sometimes avoided by conservators on the masonry substrates of historic structures for what reason?


 
 
   

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Montipower, Inc.
The MBX Bristle Blaster

Get a 2.7 to 3.3 mil profile and a Near White Metal Clean. For info visit www.mbxit.com or call 877 629-8777


Atlas Material Testing Technology

Helping You Put Your Products To The Test

• Outdoor Accelerated
Weathering
• Laboratory Testing
Services
• Accelerated Weathering
Instruments

www.atlas-mts.com atlas.info@ametek.com


Wasser High-Tech Coatings Inc.
Wasser Coatings Protect

Wasser Coatings offer a complete range of Moisture Cure Urethane (NEPCOAT approved) systems in addition to Polyurea membranes and linings(NSF).
www.wassercoatings.com


HoldTight Solutions Inc.
NO FLASH RUST -
NO CONTAMINANTS

Our HoldTight®102 salt remover & flash rush inhibitor prevents flash rust by removing surface contaminants.
Contact us for your nearest distributor. (800) 319.8802 sales@holdtight.com


DeFelsko Corporation
PosiTector 200 for concrete

Rugged, simple and affordable coating thickness gage for concrete measures protective coatings including polyurea.


US Minerals
US Minerals -
Black Magnum

With nationwide production and distribution capabilities, U.S. Minerals supplies a complete range of coal slag and other abrasives to meet all of your blasting needs.


BASF
New resins from BASF will have metals loving water:

Excellent corrosion resistance, low VOC, high gloss, thin films basf.us/industrialcoatings
polyorders@basf.com
800-231-7868


LS Industries
LS Blasters: Optimum Steel Cleaning Efficiency

Simplify surface prep with the precise shot control of LS Blasters. Our blast technology delivers optimum coverage and finish. 800-533-8008


Thermion Inc
Buy Back Program

We are offering $5,000
credit for your old Model
This drive system is
being discontinued by
the manufacturer.
More information at
thermioninc.com
877.884.3428

 
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