Save 20% on select titles with code HIDDEN24 - Shop The Sale Now
When coatings are applied to substrates as e.g., metal, the adhesion of the cured paint is a critical parameter for the final performance of the paint film. The adhesion of the paint to the substrate influences many properties of the paint, which including visual appearance, anticorrosive performance, flexibility, resistance against scribing and scratching, delamination, blistering and many more. Many actions can be taken to influence and improve the adhesion of a coating to a substrate.
We are unable to complete this action. Please try again at a later time.
If this error continues to occur, please contact AMPP Customer Support for assistance.
Error Message:
Please login to use Standards Credits*
* AMPP Members receive Standards Credits in order to redeem eligible Standards and Reports in the Store
You are not a Member.
AMPP Members enjoy many benefits, including Standards Credits which can be used to redeem eligible Standards and Reports in the Store.
You can visit the Membership Page to learn about the benefits of membership.
You have previously purchased this item.
Go to Downloadable Products in your AMPP Store profile to find this item.
You do not have sufficient Standards Credits to claim this item.
Click on 'ADD TO CART' to purchase this item.
Your Standards Credit(s)
1
Remaining Credits
0
Please review your transaction.
Click on 'REDEEM' to use your Standards Credits to claim this item.
You have successfully redeemed:
Go to Downloadable Products in your AMPP Store Profile to find and download this item.
During the winter of 2013-2014, Northern California experienced unusually cold temperatures (below 40°F). These low temperatures delayed Pacific Gas & Electric Company (PG&E) coating operations on new pipelines. Since liquid epoxy coatings capable of being applied at, or which fully cure at, temperatures below 50°F were not approved, PG&E chose to control the environment using small enclosures over the application area. This approach proved to be expensive and time consuming, so a novel method of pipeline surface temperature control was necessary to allow application of liquid epoxies at low ambient temperatures.
Coating specifications frequently reference industry standards from organizations such as SSPC, ASTM, ISO and NACE. While specifications may reference a specific version or “year,” many simply state, “the latest version of the standard applies.” Many standards writing organizations require a review of the content of their documents every 5-years (or more frequently), and updates/revisions to standards can and oftentimes do occur. And new standards are developed and published to fill voids when a need for a standard is identified.
Engineers, architects, DOTs, and other specifiers use hot dip galvanizing to provide corrosion protection to steel and iron in many industries, including transportation and highway, parking garages, bridges, structural, agricultural, petrochemical, and original equipment manufacturing. To ensure continued corrosion protection and structural integrity in these industries, it is necessary to properly inspect the galvanizing.
The U.S. Air Force will never eliminate corrosion in aerospace systems, but synchronized efforts can help sustain positive trends in conserving maintenance dollars, increasing system availability, and reducing corrosion-related mishaps. The AF Corrosion Control and Prevention Executive established an aggressive goal to reduce corrosion’s effects by 20% by 2025: a 20% reduction in corrosion maintenance costs; a 20% reduction in non-available hours (NAH) due to corrosion repairs; and a 20% reduction in corrosion-related safety mishaps.
A long-term project such as the current Brooklyn Bridge Rehabilitation Program, known as Brooklyn Bridge Contract 6, presents a great opportunity to collect vast amounts of data and records relating to the total coating replacement on a historic landmark. On any project, especially one of this scope, the project team has to deal with many obstacles, both expected and unexpected, and significant unknowns.
Concrete will crack – that is a fact. When cracks appear, they are dynamic or static, and structural or non-structural. If the crack is static, non-structural, and does not leak, epoxies are great to restore design strength. However, since concrete constantly shrinks, expands, and often leaks, the use of a flexible polyurethane resin to permanently seal active leaks is the optimum choice to create a leak-free environment.
Internal coatings stress (ICS) develops in coatings applied to a rigid substrates. During drying, volume changes due to solvent loss and/or cure induces stresses in the films. Differences in the thermal expansion coefficients of the coating and substrate also affect the ICS. ICS affects the interfacial adhesion and results in delamination once the stress exceeds the force of adhesion.
This paper deals with the issue of surface contaminates analyses presently available on the market. The amount of variations of analyses and more important statements of the results cause great problems on the market. Described in the paper are not only the analyses possible, but also the interpretations belonging to them. However, salt measurements are used worldwide, its basics often appear to be a worldwide mystery. This paper should clarify the most common made mistakes.
Results of exposing UNS R56404 forging and pipe product forms to liquid mercury over the 25°-232°C range while highly stressed at & beyond the alloy’s yield point via three loading modes are reported. Included are: sustained load 90 day C-ring tests, slow strain rate tensile testing, and rippled slow strain rate cyclic tensile loading.
A century ago, automotive companies developed the laboratory salt spray corrosion test method standardized in ASTM B117. Even then they knew this quality control test did not produce realistic exposures. Wet-dry cyclic tests provided modest improvements in correlation and have been used in architectural applications for many years.
The importance of moisture testing of concrete floors cannot be stressed enough. Moisture is a leading cause of coatings failures on concrete floors. There are many ways moisture can affect floor coatings on concrete. Moisture testing alone is not sufficient enough at detecting all of the potential problems. Inspecting a building prior to performing any tests will provide a much clearer picture of the potential problems moisture in both liquid and vapor form can pose.