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Daily Quiz (24)


True or false: Ultra-high-pressure water jetting at 30,000 psi typically produces a greater volume of water in removing coatings from a masonry substrate than does pressure washing at 5,000 psi.


What organization is developing the “Guide for Fluid Applied Air Barrier Coatings for Concrete Masonry Units”?


True or false: Elastomeric silicone coatings are sometimes used on masonry substrates.


According to a D+D article, to achieve total coating removal from brick with minimal substrate damage and no airborne dust generation, what removal method makes the most sense?


What is the name of the industrial form of hydrochloric acid that is used to clean concrete and masonry?


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


Why are elastomeric acrylics often selected for use on masonry walls?


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


True or false: Film-forming coating systems on exterior masonry or concrete walls should not have any moisture vapor permeability.


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


Mineral paints used on masonry substrates use what type of binders?


True or false: The less permeable a coating for exterior masonry is, the more durable it is likely to be.


Which of the following product types is a water-repellant for masonry and concrete that penetrates pores, is breathable, and does not change the appearance of the substrate to which it is applied?


True or false: Ultra-high-pressure water jetting at 30,000 psi typically produces a lower volume of water in removing coatings from a masonry substrate than does pressure washing at 5,000 psi.


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


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


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.


A crust of soluble salts, commonly white, deposited on the exterior of masonry facades, such as brick, is called what?


Why are clear, 100% acrylics often used on masonry facades?


True or false: Clear film-forming coatings do not typically change the appearance of masonry.


True or false: One hundred percent acrylic coatings are relatively resistant to alkaline substrates such as masonry.


True or false: Clear penetrating water repellents typically have a large influence on the vapor permeance of a masonry substrate.


True or false: Film-forming coating systems on exterior masonry or concrete walls should exhibit water vapor permeability or breathability.


 
 
   

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SAFE Systems, Inc.
Custom blast rooms
by SAFE Systems

Don't waste time and money "making do" with a "standard" design. Let us work with you to design and build the system that best fits your requirements.
Call 1-800-634-7278


Tnemec Company, Inc.
Online Coating Courses from Tnemec

For decades, Tnemec has offered its expertise to clients presenting face-to-face coatings courses. Now, these presentations are available to anyone for CEUs at Tnemec University.


Atlantic Design, Inc.
BUILDING INNOVATION, NOT IMITATION

The smallest version of our Blast Vacuum Recyclers, this ADI 2300CFM 2-Pot is a cleverly designed power package for those smaller jobs. 866.Call.ADI


DRYCO
Humidity & Temperature Control Equipment

Rental Desiccant Dehumidifiers, ArcticDRY Units, Air Conditioners, Heaters and Generators to help control the climate on your next industrial painting project. Nationwide locations, 24/7 service: (866) 379-2600 www.drycogroup.com”


Safway Services
Safeguard Assets. Ensure Productivity. HAKI®

Protect assets and equipment. Keep facilities open and operational. Maintain schedules regardless of weather. Ensure smooth and continuous production. Easy to erect. Safway is the primary distributor of HAKI® products including HAKISPAN and HAKITEC® 750 – in North America.


KTA-Tator, Inc. - Corporate Office
KTA-TATOR LABORATORY SERVICES

• Coating failure analysis
• Independent
  comparative testing
• Accelerated
  weathering testing
• Toxic metals testing
• A2LA Accredited
Contact: Cindy O'Malley,
at 412-788-1300 x180


Jotun Paints Inc.
Jotachar JF750 - The Time Saving Solution

The only mesh free solution for jet fire scenarios. Jotachar saves installation time and material costs - the next generation of epoxy passive fire protection.


Polygon
POLYGON - Temporary Humidity Control

We specialize in innovative climate control solutions for industrial painting, utilizing alternative energy sources and combining desiccants with heating or cooling.

 

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