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Spot-and-Sweep' Blasting for Cost Effective Outer Hull Surface Preparation

Spot-and-Sweep' Blasting for Cost Effective Outer Hull Surface Preparation
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This paper summarizes the work performed under 2011 funding from the National Shipbuilding Research Program (NSRP) Surface Preparation and Coatings Panel.

Product Number: 41213-760-SG
Author: Gordon G. Kuljian
Publication Date: 2013
Industries: Military , Coatings
$0.00
$20.00
$20.00

The current U.S. Navy underwater hull surface preparation strategy is to completely remove the coating systems after an 8-year service life. This is accomplished through abrasive blasting or ultra-high water-jetting (UHPWJ) and is the only strategy approved under NAVSEA Standard Item 009-32 (preservation). Surface preparation in the commercial arena (general cargo fleet, tankers, bulkers, and cruise liners) generally consists of repairing the system at 36–60-month intervals by removing only loose or delaminated coating, applying primer to exposed steel, adding additional anti-corrosive as needed and applying full antifouling coats. Such a practice is termed “spot-and-sweep blasting”.

The current U.S. Navy underwater hull surface preparation strategy is to completely remove the coating systems after an 8-year service life. This is accomplished through abrasive blasting or ultra-high water-jetting (UHPWJ) and is the only strategy approved under NAVSEA Standard Item 009-32 (preservation). Surface preparation in the commercial arena (general cargo fleet, tankers, bulkers, and cruise liners) generally consists of repairing the system at 36–60-month intervals by removing only loose or delaminated coating, applying primer to exposed steel, adding additional anti-corrosive as needed and applying full antifouling coats. Such a practice is termed “spot-and-sweep blasting”.

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Major keys to Cost Effective Surface Preparation for Superior Coating Performance Corrosion Protection and Long Service Life
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Major keys to Cost Effective Surface Preparation for Superior Coating Performance Corrosion Protection and Long Service Life

Product Number: 41209-505-SG
Author: Hugh J Roper, Joseph Brandon
Publication Date: 2009
$20.00

This presentation will outline the results and conclusions of a number of years of testing and experience in surface preparation for high-performance coatings. Testing has shown that there are a number of important surface preparation variables that are not routinely monitored and controlled on coating projects. These variables will be identified and guidance will be provided on appropriate treatment to achieve coating results. 
Steps to a More Effective Blasting Operation
Available for download

Steps to a More Effective Blasting Operation

Product Number: 41213-730-SG
Author: Kumar Balan
Publication Date: 2013
$20.00

Shot blasting as a mechanical surface preparation process is widely used in finishing metallic parts. Sophistication in the use of this technique could range from simple manual systems to computer-controlled equipment for preparing aerospace and automotive components. 
Cost Effective Surface Preparation for Coating Performance, Corrosion Protection and Long Service Life
Available for download

Cost Effective Surface Preparation for Coating Performance, Corrosion Protection and Long Service Life

Product Number: 41207-376-SG
Author: Hugh J Roper
Publication Date: 2007
$20.00

This presentation will outline the results and conclusions of a number of years of testing and experience in surface preparation for high-performance coatings. Testing has shown that there are several important variables that are not routinely monitored and controlled on most coating projects. The pertinent variables will be identified, and guidance will be provided on appropriate treatment of the variables to achieve the maximum results from the chosen coating. 
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