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The D+D Guide to Paint defects

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Daily Quiz (26)

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True or false: “Solvent pop” occurs because of hackles in a steel substrate.

Thursday, December 8, 2016


True or false: For non-conductive coatings up to 20 mils thick applied to conductive substrates, a low-voltage holiday detector is normally used to detect pinholes and other discontinuities.

Tuesday, September 27, 2016


True or false: A discontinuity in a coating is a more serious flaw than a holiday.

Monday, June 27, 2016


True or false: The coating defect called curtaining is another name for the defect called cissing.

Tuesday, April 19, 2016


What is the relationship between a discontinuity and a holiday in a coating?

Friday, April 15, 2016


Which surface defect is normally not associated with coatings?

Wednesday, January 13, 2016


Windy conditions are most likely to cause which of the following paint defects?

Wednesday, October 21, 2015


What is the name of a British publication on coating defects?

Tuesday, May 26, 2015


True or false: “Discontinuity” and “holiday” mean the same thing in terms of application defects.

Wednesday, May 6, 2015


True or False: Peeling, flaking, and delamination are examples of cohesive paint failures.

Friday, October 25, 2013


Oil contamination on the substrate or in the atomizing air of conventional spray equipment is most likely to cause what type of coating defect?

Monday, October 21, 2013


In the vernacular of painting, what is another name for “vacation?”

Friday, October 4, 2013


True or False: Amine blush is caused by UV exposure.

Thursday, October 3, 2013


What is the subject of Fitz’s Atlas?

Friday, September 20, 2013


What is solvent popping?

Wednesday, August 21, 2013


What does the coating failure term “crazing” mean?

Monday, August 19, 2013


Windy conditions are most likely to cause which of the following paint defects?

Friday, July 12, 2013


What coating defect is caused by exceeding the recoat interval recommended by the manufacturer for an epoxy coating?

Friday, July 12, 2013


Holiday detectors rely on what functionality to detect voids in coating films?

Monday, February 25, 2013


In which one of the following QC applications is a holiday detector (high or low voltage) normally not used?

Tuesday, September 18, 2012


What kind of instrument is used for continuity testing of coatings?

Monday, June 25, 2012


True or false: For non-conductive coatings up to 20 mils thick applied to conductive substrates, a high-voltage holiday detector is normally used to detect pinholes and other discontinuities.

Friday, March 23, 2012


True or false: Wet sponge holiday detectors are used when coatings are 20 mils thick or thicker.

Friday, August 19, 2011


What coating defect is most likely to be caused by exceeding the recoat interval recommended for an epoxy coating?

Monday, July 25, 2011


Windy conditions during spray application of coatings would be most likely to cause which of the following paint defects?

Wednesday, July 6, 2011


What coating defect is likely to be caused by exceeding the recoat interval recommended for an epoxy?

Wednesday, June 15, 2011


   
 

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