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Problem Solving Forum (5)


On guardrails on a marine wharf, grating panels consisting of mild steel bars about 1/8-inch by 1-inch on a 2-inch-square grid were painted with a three-coat zinc/epoxy/urethane system. Inspectors are finding numerous pinholes in the finish coat along the inside corners of the grating where the 1-inch-thick bars meet at a 90-degree angle. These pinholes were not noticed in the zinc or epoxy coats, but the final coat's visual inspection is more detailed. What is the likely cause of the pinholing, and what could be done to prevent it on future applications? Also, what should the disposition of the parts with pinholes be, as in, repair, accept as is, reblast and recoat, or an alternative?


Is a sealer coat always required for coating systems applied to concrete surfaces that will be exposed to marine environments?


How, besides grinding, can one remove large areas of silicone coating from a ship’s hull to replace the silicone with an epoxy mastic?


What is the best way to remove thick-film elastomers from floors and ship decks?


What type of antifouling or foul-release coating will provide the greatest protection in warm tropical waters, and for how long?


 
 
   

Novetas Solutions
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NACE International, The Corrosion Society
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Nationwide Overspray
Profession Overspray Removal Services

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Tarps manufacturing, Inc.
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Specialty Products, Inc. (SPI)
Polyurea & Polyurethane Spray Foam Training

SPI is committed to industry leading technical training for polyurea & polyurethane spray foam professionals. Attendees receive hands-on, in-depth training for using and troubleshooting plural-component equipment, spray guns, machine hoses & parts.


US Minerals
US Minerals -
Black Magnum

With nationwide production and distribution capabilities, U.S. Minerals supplies a complete range of coal slag and other abrasives to meet all of your blasting needs.


Modern Safety Techniques
Modern Safety Techniques

See our Low Temperature Catalyst for your CO removal needs. Help to provide your workers with safe, comfortable breathing air!


Hempel (USA) Inc.
Hempel Protective Coatings

Protect your investment from the inside out. With IMO, PSPC approved tank coatings solutions we give you tough, long lasting results that are tailored to meet your exact needs. Contact us at offshore@hempel.com today.


Clemco International GmbH
Global engineering-trusted solutions

For more than 70 years, Clemco has provided the highest quality blast equipment with a total commitment to comfort and safety.


Detail Masters
Overspray Removal

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Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker

 
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