Standards Used for Partial Coating Removal During Maintenance Painting
Common methods of maintenance painting have either involved complete removal of existing paint (for example preparing to an SSPC-SP 10 / NACE No. 2, “Near-White Blast Cleaning”1 surface) or a highly localized preparation of corroding areas using hand or power tools (SSPC-SP 2 or SSPC-SP 3). Sometimes projects may be designed to an intermediate degree where…
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Standards Used for Partial Coating Removal During Maintenance Pai
Common methods of maintenance painting have either involved complete removal of existing paint (for example preparing to an SSPC-SP 10 / NACE No. 2, “Near-White Blast Cleaning”1 surface) or a highly localized preparation of corro...
The Effect of Feathering on Coating Performance
Feedback from waterfront personnel performing maintenance painting for the U.S. Navy has consistently questioned the Navy’s requirement for performing feathering. NAVSEA Standard Item (NSI) 009-321 defines feathering as tapering t...
The Rebranding of a Safety Culture
Whether we choose to recognize it or not, every company has a safety culture that continuously changes, and even rebrands itself from time to time. The concept of a safety culture can be divided into broad and narrow aspects. The ...
The NTPEP Concrete Coatings and Sealers Evaluation Program
The National Transportation Product Evaluation Program (NTPEP) is a public-private partnership that prevents duplication of efforts among the 52 state departments of transportation. NTPEP provides product evaluations and facility ...
A Corrosion Control Plan for Saint Lawrence Seaway Navigation Loc
The Saint Lawrence Seaway is a series of locks, canals and navigable channels that allow oceangoing vessels to travel from the Great Lakes to the Atlantic Ocean. To facilitate this transport, construction on the St. Lawrence Seawa...
Bridge Expansion Joint Designs: Corrosion of Steel Framing Below
My wife thinks that my driving skills are poor. She is not entirely wrong in this opinion. Whenever I am on a long drive or I am driving in an unfamiliar area, my eyes tend to stray from the road and examine any bridge or sign s...
The Effect of Surface Preparation on Coating Performance
Prediction of service life for naturally exposed coatings remains problematic. A number of factors can have an effect on coating performance, but none more so than surface preparation, the primary factor that influences how long a...
Analysis of Coating Blister Failures and Associated Coating and S
Blistering is a common coating failure, and for many years, the causes and mechanisms of blistering have been studied to characterize and determine the effects on coating performance and underlying substrates. These studies have l...
Painting the Natchez-Vidalia Westbound Bridge
The Natchez-Vidalia Westbound Bridge is a 4,205-foot-long through-truss structure that was built in 1940 and carries U.S. 84 westbound over the Mississippi River from Natchez, Mississippi, to Vidalia, Louisiana. The westbound port...
Test Your Knowledge Series – Surface Preparation Standards for No...
Background Most of the SSPC surface preparation standards focus on the preparation of steel, either by abrasive blast cleaning (dry and wet), power tool cleaning, or water jetting. Recognizing that galvanizing, non-ferrous m...