Seminar:
Corrosion protecting paints and coatings

This presentation introduces the basics of corrosion and various strategies for corrosion protection including methodologies for preparing metal surfaces for painting and techniques for evaluating the performance of painted surfaces against corrosion.

Selecting the right coating system for your project is key to obtaining the longest service life of your asset. There is no “one-size-fits-all”. The coating system should be selected with careful considerations to several factors. E.g. the environment the coating system should serve in, the expected durability of the system, the possibility of maintenance and repair, anticipated extended service life, any special stress on the coating system during service, and many other things.
This presentation will give some examples on coating specifications in different industries.

The presentation reviews specific requirements on coating systems for offshore wind power turbines. The focus of the first part is on mechanical loads, namely abrasion, impact and compression. The second part discusses problems of coating application for initial coating application in blasting, and coating halls and for repair coatings applied under offshore site conditions.

Protective coating systems in the atmospheric zone offshore requires the right specification, surface preparation, application and quality control. If executed correctly very long lifetimes of the overall system can be expected. However, corrosion issues are still experienced in “risk areas”, e.g. areas with field repairs, around welded attachments, bolted joints, and other assembly connections.
This presentation includes experiences from inspection of decommissioned offshore structures and shows examples of corrosion issues experienced on offshore wind structures over the last decade. The presentation further discusses how these damages may best be mitigated.

This presentation includes experiences from material combinations for bolted connections / galvanic corrosion between dissimilar materials.

Furthermore, case stories from inspections are presented, with coating failures, challenges with surface preparation and stainless-steel constructions.

Electrochemical impedance spectroscopy (EIS) is a standard method for evaluation of coatings performance. Typically, these are single time measurements conducted either at different stages of coating testing, or during sampling campaigns / inspections in the field.

This presentation introduces two new setups enabling continuous monitoring of coatings performance through impedance measurements. The first setup utilizes embedded sensors and has been developed for testing of coatings under harsh cyclic conditions such as typical for corrosion under insulation (CUI). The second setup utilizes a dedicated sensor board, the use of which allow real time monitoring of coating curing/drying, and characterization of water uptake.

Steel structures are exposed to aggressive environment, that will cause premature break down by corrosion if not sufficiently protected. Coating as paint or galvanization are widely used as protection, but they are not efficient unless correctly applied.

FORCE Technology performs independently consultation and third-party inspection regarding corrosion protective coatings. In this contribution, we will present why thorough preparation and inspection is of great significance, when and how it is performed and give examples of what kind of flaws we are typically finding and correcting during our inspections.

Aluminum’s unique combination of light weight, strength, and corrosion resistance makes it ideal for onshore and offshore structures. This presentation will examine how its natural oxide layer helps reduce corrosion and maintenance. However, the challenge of effectively coating aluminum in marine environments will also be discussed, alongside strategies to enhance its durability and make it a sustainable, cost-effective solution for modern infrastructure.

The presentation will focus on understanding why waterborne and solvent-borne epoxy coatings exhibit inadequate surface tolerance when applied to non-ideal surfaces contaminated with engine oil, silicone oil, and flash rust. The wettability mechanisms are uncovered by analyzing the interactions between the surface tension of liquids and the surface free energy of solid surfaces using the Owens, Wendt, Rabel, and Kaelble (OWRK) approach, as well as the acid-base theory.

The mechanistic insights gained from this work can contribute to enhancing the wettability and adhesion performance of organic coatings, particularly on substrates contaminated with oil and rust.