ISO
The following documents have obtained substantial support
during the past two months, and have been submitted to the ISO member bodies for voting, or formal approval.
ISO/FDIS 4624 Paints and varnishes — Pull-off test for adhesion (Revision of 2016 standard)
ISO/FDIS 5668 Corrosion of metals and alloys – Guidelines and requirements for corrosion testing in simulated environment of deep-sea water
New International standards published in the past three months.
ISO 1518-1:2023 Paints and varnishes — Determination of scratch for wind-turbine rotor blades — Part 5: Measurement of transmittance properties of UV protective coatings
ISO 24131-1:2023 Internal protection by polymeric lining for ductile iron pipes — Requirements and test methods — Part 1: Polyurethane lining
ISO 24131-2:2023 Internal protection by polymeric lining for ductile iron pipes — Requirements and test methods— Part 2: Epoxy lining
The seminar was part of a series of technical events that the GPC arranges collaboratively with international corrosion associations. The seminar was held virtually and the speaker was Prof. Gareth Hinds, the President of WCO, who focused on reviewing corrosion challenges associated with developing technologies. The event had the active participation of delegates from oil and gas companies in Qatar, university faculty members, researchers, students, and overseas corrosion professionals.
According to Hexigone, their latest test results prove that their sustainable corrosion inhibitor, Intelli-ion AX1, can reach C5 levels of corrosion protection in both waterborne and solvent borne coatings.
C1–C5 are classifications used to describe the level of corrosion resistance required for aggressive environments and applications. C5 refers to highly corrosive environments where the steel structure is exposed to high levels of humidity, saltwater spray, and other corrosive substances.
The coatings that were tested were specially formulated by a UK-based organisation that provides technical and scientific support to the global coatings industry. The REACH compliant inhibitors were added to both waterborne (WB) and solvent borne (SB) 2 pack epoxy coatings, and both primer only and top-coated systems were tested.
The panels used for testing were shot-blasted to Sa 2.5 as per C5 specification. Each primer layer had an average dry film thickness (DFT) of 120 µm, and the topcoat was applied at approx. 60 µm. After 1440 hours salt spray (SST) to ASTM B117 both the primer and full system for the WB epoxy and SB epoxy displayed no signs of blistering in the coating. To demonstrate the full performance of both systems with AX1 in, part of the paint system was removed after salt spray to view the substrate underneath. The WB epoxy system after 1440 hours shows minimum corrosion at the scribe, evidencing Intelli-ion’s excellent performance in WB systems. The SB epoxy system also meets specifications with no blistering, minimum cross-scribe corrosion, and no undercoat corrosion present on the full substrate.
Unlike zinc phosphate, which primarily provides anodic protection via precipitation, Intelli-ion offers both anodic and cathodic corrosion protection. The technology is released in a smart way and works by forming a protective nano layer on the metal surface, which provides a physical barrier to corrosion-inducing substances. The final mode of protection happens once it has donated a proton to OH- ions resulting from the cathodic oxygen reduction reaction, it forms a lone pair bonded layer over the metal surface at the cathode, blocking interfacial electron transfer.
Hexigone invites coatings manufacturers worldwide to join forces and co-create high-performance, sustainable, smart coatings.
For more information visit https://www.hexigone.com
According to the company, Heat-Flex ACE is a next-generation ultra-high solids advanced novolac epoxy for CUI. Developed with a functional chemical enhancement, surpassing performance capabilities of traditional solvent-based epoxy phenolic and novolac coatings. This advanced CUI epoxy technology is unique and different from other epoxy chemistries, as it gives unrivalled performance and application properties through the robustness of the resin system, rather than through pigmentation. Heat-Flex ACE provides external protection of process pipes, valves, and vessels operating between temperatures from -196°C to 232°C, and is suitable for use in new construction and maintenance projects of both carbon and stainless-steel substrates in insulated and uninsulated service. Source: https://industrial.sherwin-williams.com
The most recent TÜV Austria approved industrially compostable Eco-Corr Film is the result of Cortec’s long-standing interest in researching biodegradable technology. It is a type of commercially available biodegradable VCI (vapour corrosion inhibitor) packaging that does not endanger plant growth with ecotoxicity. Eco-Corr Film meets German TL-8135-002 and NACE TM0208-2018 standards for corrosion protection. These films can be used to protect a wide variety of metals, including carbon steel, aluminum, galvanized steel, stainless steel, copper, and brass during domestic and overseas shipments. After use, Eco-Corr Film can be disposed in an industrial composting environment. Metal parts packaged in Eco-Corr Film gets protection against salt, excessive humidity, condensation, moisture, and aggressive industrial atmospheres. In addition to serving as a physical barrier to the elements and inhibiting corrosion on metals in direct contact with the film, Eco-Corr Film also contains Vapor phase Corrosion Inhibitors that vaporise and then condense on all accessible metal surfaces within the enclosed package to prevent corrosion reaction between metal, oxygen, and an electrolyte.
For More information visit: www.cortecpackaging.com
Denmark and Germany have agreed to build a hydrogen pipeline between the two countries, which is expected to be operational by 2028. The pipeline is anticipated to both meet Germany’s anticipated 90 TWh hydrogen demand by the same year, as well as Denmark’s goal of producing 20 TWh of hydrogen from 4-6 GW of electrolyser capabilities. Denmark will be able to export excess hydrogen production under the deal to nations like Belgium, Germany, and the Netherlands, who have already indicated a desire to import green hydrogen as part of their ambitions for a green transition.
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