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Daily Quiz (6)

True or false: According to a recent JPCL article, planing is more effective than shotblasting in removing asphalt, latex, adhesives and other materials that are thicker than 2 mm from concrete floors.

Why is crystalline silica sand more likely to cause silicosis when it is used for abrasive blasting, as opposed to when it blows around on a beach?

What is the typical pressure range for water jetting when it is used to remove coatings and corrosion from structural steel?

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.

To totally remove coatings from brick and at the same time to minimize substrate damage and avoid generation of airborne dust, which of the following surface preparation methods makes the most sense?

True or false: In preservation work on historic structures, abrasive blasting is normally recommended by conservators for coating removal from brick substrates.


Graco Inc.
Graco Mortar Pump

The M680 sprays epoxy-based mortars, anti-skid coatings, cementitious and filled materials. Compact.
Easy to use.
Call 877-844-7226 or

Nationwide Overspray
Profession Overspray Removal Services

The Finest Name in Safe Overspray Removal. We specialize in removing all contaminants from any surface. Family Owned and Operated for 33 years! Fully insured. Satisfaction is guaranteed.

Clemco Industries Corp.
Powerful Protection in a Small Package

Mounts inside blast helmet, alerts operator to dangerous breathing-air condition by audible, visual, and vibratory alarms. Easily calibrated, battery operated.

Abrasives Inc.
See the difference immediately Black Magic®

Quality blast abrasive goes farther. Use Black Magic® The Tough Stuff coal slag. Cleaner, consistent, less dust. Order yours today!
Abrasives Inc. 800-584-7524

Corrosion Probe, Inc.
From Detection to Correction

Corrosion Probe, Inc. has the Most Concrete Coatings Experience and Expertise. Contact us today at

New resins from BASF will have metals loving water:

Excellent corrosion resistance, low VOC, high gloss, thin films

DeFelsko Corporation
PosiTector Inspection Kits

PosiTector 6000 Coating Thickness Gage easily converts to a surface profile gage, dew point meter or ultrasonic wall thickness gage with a simple probe change.

Modern Safety Techniques
Modern Safety Techniques

With our unique LTCat, we can help to provide clean, safe breathing air to your workers. Take a look at our Breathing Air Systems, we supply at least twice as much charcoal as our competitors! Modern

SSPC: The Society for Protective Coatings

Join SSPC and Enhance
Your Career !

W Abrasives : Bullets for cost killers

WA COST is the right solution for cost killers who want to reduce their blasting costs. Visit us during the GIFA (Hall15 - D14).

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