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Problem Solving Forum (11)


How does rapid depressurization affect lining performance in vessels and line pipe, and how can you identify any failure that might result?


Does the presence of non-burst blisters in a coating system always mean that the coating requires replacement?


What is the Cold Wall Effect? Can it cause premature coating failure and, if so, how do I prevent it?


During a week of heavy rain, we painted the interior of a heated concrete building. The paint blistered badly a week later on the walls with an outside exposure. What’s the best way to remove the coating, prepare the surface, and recoat to prevent future blistering?


During a week of heavy rain, we painted the interior walls of a heated concrete building. On the interior of walls that had an outside exposure, the paint blistered badly a week after the rain subsided. Could the rain have caused the blistering and, if so, how?


What is the best way to repair localized coating breakdown on steel?


What causes blistering/crater formation in freshly applied polyurethane topcoats, and how can this be avoided?


How can it be determined if moisture within a CMU wall is causing repeated coating failure? If so, can the source of moisture entry be accurately identified for correction?


Under what conditions should small-diameter blisters (<1.5 inches) in a water tank lining be repaired/repainted? Should the blisters be broken and the substrate examined?


How does rapid depressurization affect lining performance in vessels and line pipe, and how can you identify any failure that might result?


What is the Cold Wall Effect? Can it cause premature coating failure and, if so, how do I prevent or minimize it?


 
 
   

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DeFelsko Corporation
PosiTector 200 for concrete

Rugged, simple and affordable coating thickness gage for concrete measures protective coatings including polyurea.


HoldTight Solutions Inc.
NO FLASH RUST -
NO CONTAMINANTS

Our HoldTight®102 salt remover & flash rush inhibitor prevents flash rust by removing surface contaminants.
Contact us for your nearest distributor. (800) 319.8802 sales@holdtight.com


Trelawny Surface Preparation Technology
Surface Preparation Equipment

Manufacturer of needle scalers, grinders, scarifiers and scabblers. Pneumatic tools for Marine and Construction. US distributor CS Unitec: 800-700-5919


U.S. Zinc
Historic Reliability. Innovative Performance.

For 65 years, the success of U.S. Zinc has come from the quality of our people and our products. The protection properties of our zinc dust prolong the life of marine coatings, helping the world work™


Hempel (USA) Inc.
HEMPEL PROTECTIVE COATINGS

Efficient systems and high quality products to reduce your maintenance costs. Visit Hempel Protective for more information.


CHLOR*RID International Inc.
Free Webinar

Learn about soluble salts, along with a discussion on allowable levels.
More information at
www.chlor-rid.com,

800-422-3217


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


Midsun Specialty Products
Stopaq 30+ Year Coatings

Use Stopaq corrosion prevention coatings on pipelines, field joints, tank chimes, structural steel and more. Learn more at www.midsunsp.com/stopaq

 
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