PCN – Communicating News In Protective Coatings Globally in Real-Time
Leading Source of Industry News on Protective Coatings for Oil & Gas, Pipelines, Marine and Construction
NEWSMAKERS: * Akzo Nobel * Coating Condition Survey * Corrosion Under Insulation * CUI * Epoxy Coatings * ExcelPlas Labs * Failure Analysis * Graphene * Hempel * INPEX * International Paints * Intertherm™ * JKC * Jotun * LNG * Microcapsules * PCN * PPG * Protective Coatings * Self-Healing Coatings * Sherwin Williams * Tata Steel * Versiline™
BREAKING NEWS
Akzo Nobel Annual Report Cites Contingent liabilities with Respect to Paint Claims and Pending Litigation
A number of claims against AkzoNobel are pending, many of which are contested. This includes those where Akzo Nobel N.V. and two of its subsidiaries are currently defending claims brought by INPEX Operations Australia Pty Ltd and JKC Australia LNG Pty Ltd relating to the Ichthys Onshore Project in Darwin, Western Australia. A trial has been listed in the Federal Court of Australia, commencing June 17, 2024. The claims are contested and AkzoNobel denies liability in respect of both of these claims.
INDUSTRY NEWS
Performance of Phenolic-Epoxy Coatings after Exposure to High Temperatures [PDF]
Combatting CUI at a Polysilicon Plant in China
During plant operation, hot pipework and equipment can be exposed to extremely high temperatures and temperature fluctuations. This causes micro-cracking in the anti-corrosive coating, which can cause corrosion beneath the insulation. Versiline CUI 56990 is a MIO pigmented, fibre reinforced, inorganic co-polymer coating that cures to an inert polymer matrix, able to resist temperatures up to 650°C and thermal shock/cycling in dry or dry/wet service.
PPG Downgraded at Barclays on Concerns About Paint Business
Sherwin-Williams Rolls Out Cutting-Edge Maintenance, Repair Coating for Steel Structures
Hempel Teaches How to improve productivity in a painting process?
Tata Steel Improving the Corrosion Performance of Organically Coated Steel Using a Sol–Gel Overcoat
Assessing the Competitive Landscape of the Anti-Corrosion Coatings Market
NEW DEVELOPMENTS
Influence of Organic Coating Thickness on Electrochemical Impedance Spectroscopy Response
Anti-corrosion Effect of Chitin and Chitosan Nanoparticles in Epoxy Coatings
Study of Various Epoxy-Based Surface Coating Techniques for Anticorrosion Properties
MXene‐CeO2@PDA Synergistically Enhanced Anticorrosion of Epoxy Coatings
COATINGS FAILURE ANALYSIS
Exploring Epoxy Coating Failures with ExcelPlas Labs
While epoxy coatings are generally durable and effective at preventing corrosion, there are a few common types of epoxy coating failures that can occur:
- Adhesion failure: This occurs when the epoxy coating fails to properly adhere to the surface of the pipe, which can be caused by factors such as improper surface preparation or a poorly formulated coating. Adhesion failure can result in the coating peeling or flaking off, exposing the underlying steel surface to corrosion.
- Blistering: This occurs when small bubbles or blisters form on the surface of the epoxy coating, which can be caused by improper surface preparation, moisture contamination, or excessive heat during curing.
- Cracking: This occurs when the epoxy coating develops small cracks, which can be caused by factors such as thermal expansion and contraction, improper coating thickness, or exposure to chemicals.
- Delamination: This occurs due to intercoat or interfacial adhesion failure due to the presence of a weak boundary layer such as silicone or hydrocarbon oil contamination.
https://www.excelplas.com/wp-content/uploads/2020/01/Excelplas-A4-Brochure-4pp-Coating-NTs.pdf
Failure Analysis and Investigation of Protective Coatings in Mining, Marine Offshore Oil & Gas Chemical Plants, Energy Infrastructure and Bridges (Ask the Experts)
https://www.excelplas.com/wp-content/uploads/2020/01/Excelplas-A4-Brochure-4pp-Coating-NTs.pdf
Critical Questions for Protective Coatings for Asset Protection in Oil & Gas, LNG:
- Why is the coating not stopping corrosion?
- Why is the coating delaminating or blistering?
- Has the coating been correctly specified / applied?
- Does the coating meet the manufacturing standard, including properties such as correct hardness/cure, adhesion and thickness?
- What surface preparation and atmospheric conditions must be achieved to successfully apply the coating?
- Does the coating have any defects in it? How will these affect performance?
- Why did the coating fail? Root cause assessment.
- How can the coating be successfully repaired/remediated so that it doesn’t fail again?
ExcelPlas Labs can answer these questions and more…
https://www.excelplas.com/wp-content/uploads/2020/01/Excelplas-A4-Brochure-4pp-Coating-NTs.pdf
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This newsletter is brought to you by ExcelPlas Coating Labs (http://www.excelplas.com/)
ExcelPlas Labs provides independent testing, analysis, and investigation on protective coatings to prevent corrosion.
ExcelPlas has extensive analytical capabilities for testing of Protective Coatings and Insulation Consulting for major oil and gas companies.
We conduct corrosion surveys, coating sampling, coating analysis, and testing to ensure coating specifications for a wide range of onshore and offshore clients in Australia and the Asia-Pacific Region.
ExcelPlas Labs offer a full range of coating testing and analytical services to Australia’s mining, oil, gas, and infrastructure sectors.
Forensic analysis for undertaking various coating-based failure investigations and problem-solving.
ExcelPlas Undertakes Analysis & Testing of Polymer Coating Systems including:
- Epoxy Protective Coatings
- Epoxy-Phenolic Protective Coatings
- Fusion bonded epoxy (FBE)
- Dual-Layer Fusion bonded epoxy (DLFBE)
- Liquid applied epoxy (LAE)
- Abrasion-resistant overcoat (ARO)
- Three-layer PE (3LPE)
- Multi-component liquid spray (MCL)
- Heat shrink sleeves (HSS)
Testing on Coatings that ExcelPlas can Undertake includes:
- Coating identification by Infra-red Analysis (FTIR)
- Degree of Cure by Thermal Analysis (DSC)
- Coating Filler Identification by X-ray Analysis (EDS/XRD)
- Coating Microstructure by Embedding, Polishing, and Optical Microscopy (OM)
- Coating Thermal Stability and Composition by Thermogravimetric Analysis (TGA)
DSC – Phase transition/volatiles / Tg / degree of cure/characterisation
TGA – Volatile compounds, inorganic mass % mix ratio
Element mapping for chlorides on paint flakes
Microscopy -Count layers and thickness of layers
- Assess porosity and voids
- Check distribution and orientation of filler particles
Condition monitoring and analysis of corrosion prevention coatings (epoxies, epoxy-phenolics)
http://www.excelplas.com/
Testing of Epoxy Coatings (LAE, FJC, FBE), heat shrink sleeves and tapes, barrier tapes, and meshes.
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