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04004 Testing of Offshore Systems - Is There a Realistic Testing Scenario or is There Still Work to be done?

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Much progress has been made in testing of offshore paint systems in the past 10 years. But more work is needed to understand what is happening and give us the confidence to correlate the laboratory accelerated test to the field service life of offshore coating systems. The new NACE Standards are a move in the right direction.

Product Number: 51300-04004-SG
ISBN: 04004 2004 CP
Author: Michael J. Mitchell, International Coatings Ltd.
Industries: Maritime , Materials Selection and Design
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Although in the 1980's a number of oil companies requested prequalification testing (primarily in the USA), many did not but relied solely on advice from paint companies. Eventually NACE produced TM 0184 but complexity of test equipment meant little take up. However, premature breakdown and systems failures have led to a major resurgence in activity in both Oil Companies and paint suppliers over the past 10 years, so that there now exists around the world a whole series of various testing scenarios.

This paper will review these tests, covering ISO 20340 along with others, and consider how the recently published NACE Offshore Coating Test Methods could become a 'Universal' standard by further developing the duplex testing theme of corrosion testing and film stability/stress (cracking) testing.

 Key Words: Offshore coatings, Test methods, Film stability

Although in the 1980's a number of oil companies requested prequalification testing (primarily in the USA), many did not but relied solely on advice from paint companies. Eventually NACE produced TM 0184 but complexity of test equipment meant little take up. However, premature breakdown and systems failures have led to a major resurgence in activity in both Oil Companies and paint suppliers over the past 10 years, so that there now exists around the world a whole series of various testing scenarios.

This paper will review these tests, covering ISO 20340 along with others, and consider how the recently published NACE Offshore Coating Test Methods could become a 'Universal' standard by further developing the duplex testing theme of corrosion testing and film stability/stress (cracking) testing.

 Key Words: Offshore coatings, Test methods, Film stability

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