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Power tools such as power wire brushes can burnish or polish a steel surface. Why is this sometimes a problem?

Polished surfaces require more primer
Polished surfaces develop rust bloom that interferes with coatings adhesion
Burnishing destroys surface profile and mechanical adhesion of the coating
Burnishing makes the surface a better conductor of current and therefore accelerates corrosion

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Previous Quizzes from the Past Week

Thursday, June 16, 2011
What is most likely to help you achieve the specified profile on the steel you are blast cleaning?

Wednesday, June 15, 2011
A conductivity meter can be used to check for what contaminant on abrasive?

Tuesday, June 14, 2011
How is film build normally achieved during the thermal spray process?

Monday, June 13, 2011
What is the minimum oxygen content of air suitable for breathing?

Friday, June 10, 2011
In conventional air spraying, which of the following spray techniques is wrong?


More previous quizzes

CHLOR*RID International Inc.
HOLD*BLAST: Buy time for pennies per sq ft.

* Stop flash rust
* Vapor blasting
* Wet blasting
* UHP water jetting
* No residue


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


NLB Corporation
NLB Sure Shroud: Greater Protection and Flexibility

NLB’s Sure Shroud’s lighter weight and flexibility reduces operator fatigue and offers unmatched protection against high pressure hose ruptures. 10k to 40k psi rated.


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


Harsco
BLACK BEAUTY® App

Download the free app for BLACK BEAUTY® Abrasives. Explore all the features from the palm of your hand.
Toll Free: 1-888-733-3646


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


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Schmidt's conversion kits turn out-of-date blast pots into high quality, efficient blasters.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


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.


PPG Protective and Marine Coatings Group
We Protect and Beautify the World

PPG is widely recognized as a world leader in protective and marine coatings, developing innovative, cutting-edge products and services.


Bullard

The Next Generation
of Blasting

• Lightest
• Coolest
• Most Comfortable
• Most Dependable

 
 
 

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