Belzona Launches The Next Generation Of High Temperature Vessel Linings
As a response to the existing needs and anticipating the future demands of the pressure vessels market, Belzona has introduced its new technologically advanced high temperature process vessel linings. Having recognised the fact that linings can be a controlling factor in the vessel's service life, Belzona has contributed to their protection by basing the development of the latest 1500 Series epoxy coatings, spray applied Belzona 1523 and hand applied Belzona 1593, on new polymer technology.
- (1888PressRelease) March 21, 2014 - This pioneering polymer technology exhibits very high resistance to a wide range of chemicals, such as hydrocarbons and amines, ensuring long-term corrosion protection even under immersed conditions at high temperature. With minimal VOC emissions and internal stress, it also provides excellent adhesion to all rigid metallic substrates.
The new materials eliminate the need for grit blasting between coats and allow for the second coat to be applied without any additional surface preparation with a 24-hour overcoat window. In-service post-curing ensures a rapid return to service, contributing to dramatically reduce downtime. Due to improved rheology, the new linings exhibit superior flow and levelling, providing a more uniform and even thickness over the entire surface and enabling the accurate control of the film thickness, while the light colours facilitate easier inspection of the lining after application.
Rubbery domains that inhibit crack propagation have been incorporated into the polymeric structure of Belzona 1523 and Belzona 1593 to provide increased impact resistance and flexibility, so they can withstand the extreme temperature and pressure variations across the wide range of the severe operating, maintenance and transportation conditions they are subject to. These next generation linings are less brittle, more tolerant and can be deformed when under high radial, circumferential and longitudinal stress, preventing material ruptures, breaks and fissures. The flexible coating moves in sympathy with the substrate and absorbs vibrations.
The materials passed Explosive Decompression testing according to NACE TM0185 international standards at 120°C/248°F and 70 bar pressure and have also passed the Steam-out testing at 210°C/410°F for 96 hours. Belzona 1523 and 1593 have been subjected to the in-house Atlas Cell Immersion Testing for six months and passed at 140°C/284°F and 160°C/320°F respectively without exhibiting any rusting or blistering.
According to Belzona's Chief R&D Chemist, Richard Collett, "Belzona 1523 and Belzona 1593 are the culmination of 20 years of experience in formulating high temperature linings, starting in 1994. Belzona 1523 and 1593 are based on a combination of several 'state of the art' technologies and I believe they are our best high temperature linings yet."
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