Save 20% on select titles with code HIDDEN24 - Shop The Sale Now
New high-solids coatings are sometimes required to meet volatile organic compound (VOC) legislation. Lack of data on same needs accelerated test methods to evaluate performance. The test method must: • Be performed using commercially available equipment • Take a relatively short time period. • Correlate with real life exposure.
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.
The creepage of corrosion underneath a coatings film applied to a steel test panel is often used as a performance test for the anti-corrosion properties of a coating system. Underfilm corrosion creep, also sometimes referred as scribe creep in the laboratory environment, is defined as the degree of corrosion emanating away from a scribe line underneath a coating film applied to a steel substrate.
One of the most common ways of protecting steel assets and structures is by organic protective coating systems. The performance of such protective coating systems is assessed based on results after accelerated laboratory exposure testing, where one attempts to mimic the conditions the coatings will be exposed to under in-service conditions in a significantly shorter time frame. Such testing is also how coating systems are qualified for certain corrosivity classes and durabilities, being formalized in standards and specifications such as ISO 12944-6 and NORSOK M-501 ed. 7.
Organic coatings are the most used method of corrosion prevention and protection of metallic substratesin many industries. Owners in both the public and private sectors will invest significant resources intotesting coating options to provide the best protection for new and existing products or infrastructure.Often, this testing defaults to some variation of accelerated salt spray testing or outdoor marine exposurewith results being based on aspects such as visual measurements of rust through, corrosioncreepage/undercutting, and blistering.
The creepage of corrosion underneath a coatings film applied to a steel test panel is often used as a performance test for the anti-corrosion properties of a coating system. Creepage is defined as the degree of corrosion (usually measured in mm) emanating away from a scribe line underneath a coating film applied to a steel substrate. There are several factors which may affect the degree of corrosion creep, one of which is the type and width of scribe cut into the coatings film to the steel substrate. There is a variety of scribing methods used in various test methods and specifications; however it is unclear if there is actually a performance difference observed in corrosion creep when using different scribe types.