Coatings & Linings

Encapsulating Technology Protects over 500 Flanges

The repair and maintenance industry has employed many different techniques to combat flange corrosion. A gas supplier decided to commission a flexible and peelable coating system for the protection of over 500 flanges on the site.

Flexible Coatings Help Protect Marine Structures

Corrosion impacts all structures in a marine environment, such as offshore platforms and rigs and ocean-going vessels. One way to minimize and mitigate the effect of some types of corrosion is through the use of flexible surface coatings.

Chromate Primer Alternative Uses Carbon Nanotubes Modified with Corrosion Inhibitors

Scientists have developed a non-chrome primer system by incorporating carbon nanotubes (CNTs) modified with organic corrosion inhibitors into an epoxy-based resin. The goal of the coating development effort was to identify promising CNT-containing non-chrome primer formulations that perform comparably to traditional chromated ones.

Using Pipeline Coatings with Cathodic Protection

During the service life of a pipeline, the coating has to maintain its integrity under operating environments and in the presence of cathodic protection (CP). A coating that exposes bare metal areas renders the pipe surface susceptible to corroding species, and a functional CP system will be required. This article discusses the basic principles of corrosion protection with coatings and CP, and the attributes of an effective pipeline coating.

NACE, SSPC Publish Joint Wet Abrasive Blast Standards

NACE International recently published five new joint companion wet abrasive blast (WAB) standards with the SSPC: The Society for Protective Coatings. These standards define the processes for preparing a carbon steel surface to a specified degree of surface cleanliness using a WAB cleaning method.

NACE Technical Committees—Volunteering Has Its Rewards

Want to know how you can become more active in NACE? There are many opportunities for NACE members to volunteer, and the technical committees offer many benefits such as having an impact on industry standards, developing a network of peers, and enhancing your career.

Century-Old Stormwater Tunnel Rehabilitated with Spray Lining

When a 200-ft (61-m) stretch of an arch tunnel on a stormwater collection line in the old town section of Guangzhou, China suffered severe damage to the brick-and-masonry structure due to root intrusion and corrosion, a spray-applied lining was used for rehabilitation.

Corrosion Basics: Tank and Containment Linings

Some of the most critical uses of protective coatings involve service conditions that require the use of coatings as linings. They may be the same coatings that are used in atmospheric or underground service, but they are usually specially formulated for three specific purposes.

Effect of Humidity on Surface Preparation and Coating Application

A common coating scenario is that a contractor blasts all day long, then experiences delays before coating the blasted surface. A dehumidification system can help with meeting specifications for application and achieving customer satisfaction.

Wrap Repair Saves Failing Seawater Filter Vessel

A unique wrap was used to repair a seawater bulk media filter vessel on an offshore oil and gas platform in the Gulf of Mexico. The bottom of the vessel was suffering from external damage due to the heavily corrosive environment and seawater being transported.

New Mexico’s Iconic Steel Bridge Turns 50

In September 2015, when the iconic Rio Grande Gorge Bridge reached its 50th year of service, it coincided with the bridge’s biennial inspection that scrutinizes the entire structure for coating failure, corrosion, cracks in the steel, and other structural integrity issues.

High-Performance Spray-Applied Waterproofing Protects Concrete and Steel

Coating failure has led to significant degradation of America’s structural elements. As an alternative to more traditional materials, new high-performance, spray-applied waterproofing alternatives are being used to protect and maintain critical infrastructure

New Standards Provide Maintenance Guidelines for the Electric Power Industry

NACE International and the Institute of Electrical and Electronics Engineers (IEEE) have joined together to provide joint industry standards that address above-grade and below-grade corrosion of steel transmission and distribution structures.

IMPACT Study to Provide Tools for Corrosion Management

NACE International’s International Measures of Prevention, Application, and Economics of Corrosion (IMPACT) study is nearing completion and will be released in March 2016. A segment of the report focuses on the Corrosion Management System Framework and how a company can incorporate one into its own program.

Lack of Basic Corrosion Control Results in Catastrophes

Safety, function, and service life should be a part of every project. To address these parameters, consideration must be given to design, choice of materials, construction methods, active and passive surface protection, and other parameters.