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MONDAY, DECEMBER 12, 2016
Penetrating sealers are sometimes avoided by conservators on the masonry substrates of historic structures for what main reason?
They alter the appearance of the structure too much. They are highly breathable. Their use is not reversible. They require too much surface preparation.
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Previous Quizzes from the Past Week
FRIDAY, DECEMBER 9, 2016 True or false: Polyaspartic coatings offer good color and gloss retention.
THURSDAY, DECEMBER 8, 2016 True or false: “Solvent pop” occurs because of hackles in a steel substrate.
WEDNESDAY, DECEMBER 7, 2016 What organization offers a one-day course on “Exterior Wall Quality Assurance”?
TUESDAY, DECEMBER 6, 2016 Polyurethanes are formed by the reaction of an isocyanate with a hydroxyl-containing substance. What is another name for this hydroxyl-containing substance?
MONDAY, DECEMBER 5, 2016 True or false: According to a D+D article, most SPF systems can be installed at substrate temperatures from 30 degrees to 180 degrees Fahrenheit.
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