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Daily Quiz (28)


Which of the following organizations maintains defined, standard categories distinguishing among sealers, stain blockers, and primers?


True or false: Preservationists sometimes frown on use of penetrating sealers to protect the masonry substrates of historic structures.


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?


 
 
   

SAFE Systems, Inc.
Portable Blast &
Recovery Equipment

Trailer or skid mounted blast and recovery equipment. Systems designed for maximum versatility, environmental compliance
and overall cost savings.
Call 1-800-634-7278


Specialty Products, Inc. (SPI)
Polyurea & Polyurethane Spray Foam Training

SPI is committed to industry leading technical training for polyurea & polyurethane spray foam professionals. Attendees receive hands-on, in-depth training for using and troubleshooting plural-component equipment, spray guns, machine hoses & parts.


SABRE Autonomous Solutions
Safety, Productivity, Quality. Robotic Blasting

Learn how this simple to use, field deployed, automatic robot is eliminating hazards in major confined, cluttered and complex surface preparation projects.


Advanced Recycling Systems
ADVANCED RECYCLING SYSTEMS (ARS)

Recycling Machines, Dust Collectors, Rapid Deployment units are time-tested and approved for the rugged industrial environment. Contact ARS today!
(330)536-8210


Desco Mfg. Co., Inc.
DUST-FREE SOLUTIONS For Lead Abatement

Tools operate at levels well below OSHA limits for hazardous material removal; meet SP11 specifications when required and low vibration tools increase productivity.


Axxiom Manufacturing
Schmidt Improves Conversion Kits

Schmidt's conversion kits turn out-of-date blast pots into high quality, efficient blasters. Quick, easy to install with step by step instructions.
Call 1-800-231-2085


Monti Tools, Inc.
BRISTLE BLASTER® - THE ORIGINAL ONE

Surface cleanliness of SSPC-10 | Anchor profile
up to 4.7 mils | Removes corrosion & coatings |
ATEX approved for zone 1
| www.monti.com | 832-623-7970


Safway Services
Superior Suspended Access with QuikDeck®

Get improved platform stability with QuikDeck®. Open workspace designed for fast installation and safety. Easily moved to reduce cost. Safe to the environment.


Hempel (USA) Inc.
Hempel Protective Coatings

Wider range of Hempel coatings now meet NORSOKs exacting M-501 standard. Proven high performance to protect your assets. Contact us at protective@hempel.com to find out more.


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.

 
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