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Restoration of the Pemaquid Point Lighthouse, Bristol, Maine
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Improved holiday detection of new coatings in ballast tanks on Navy ships can increase the coating’s service life. This paper describes development of a fast, compact and portable holiday detector based on imaging of fluorescent coatings.
For several decades, engineered coatings have been used to protect steel from corrosion. Many formulas were made and tested for their ability to prevent corrosion. Changes in the formulas would include different resins, pigments, solvents and additives. In this paper, we will talk about three specific pigments, which are also commonly referred to as reinforcing pigments.
Brief Background Throughout the last decades, coatings science has incorporated very versatile inorganic materials into organic coating to form the inorganic/organic hybrid coating systems. Combining various organic and inorganic constituents in combination with different preparation and processing methods, very versatile materials can be produced for optical, structural and coatings applications. The hybrid products have combined the properties of the inorganic materials, i.e., hardness, durability, and thermal stability, and organic polymers, i.e., flexibility and toughness.
This paper builds a case for trained, certified commercial painting contractors and applicators. It discusses SSPC: The Society for Protective Coatings’ (SSPC’s) initiatives and progress in standards development for Commercial Contractor Certification and Commercial Certified Application Specialists.
California Water Service (Cal Water) has had a team dedicated to the maintenance of its water tank infrastructure since the 1970s. The Team faces significant challenges as it strives to maintain the reliability of more than 450 water tanks throughout the State of California. Some of these challenges include tighter State regulations, increased visibility from the public, limited resources, aging infrastructure, and an aging workforce that will take their valuable institutional knowledge into retirement with them.
Measuring physical parameters such as coating thickness, surface profile, and dew point is a common task for inspectors and applicators. However, those measurements are only as accurate as the instrument that performs them. Even high-quality electronic instruments can yield incorrect measurements.
In California, local air districts have regulations that limit the volatile organic compound (VOC) content of architectural coatings. The California Air Resources Board (ARB) provides assistance to local districts when developing regulations. This assistance includes developing Suggested Control Measures which serve as model rules for local districts. ARB also provides assistance by conducting periodic surveys of coating manufacturers to gather data on all of the architectural coatings sold in California during a particular year.
A well-maintained CIP Evaluation and Rehabilitation program can save millions of dollars in replacement cost!
With increasing frequency cartridge-based technology is becoming the preferred method for touch-up and repair applications using high-solids coatings. Cartridge technology directly addresses many of the issues associated with batch mixing including pot life constraints, waste generation and off-ratio material proportioning/mixing. Recent data indicate there are substantial cost-savings and environmental benefits associated with cartridge use in comparison to conventional methods of touchup and repair.
The Energy Innovation Center’s approximately 80-year-old concrete floor had significant divots and was badly spalled and cracked. The concrete floor, often referred to as “The Racetrack” due to its oval shape, serves as the main hallway to a newly renovated technology hub and needed significant structural and aesthetic work. The re-finished floor had to offer durable functionality as well as blend into the neo-industrial look of the re-tasked building.
An energy company hired a contractor to remove and replace the linings of water box condensers during a maintenance shut down. This case history will give a summary of the scope of work, a review of the specification, a description of the work performed, an accounting of the in-process inspection, and a summary of lessons learned during the project.