Belzona has introduced its new high temperature process vessel linings. Having recognized 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.
This pioneering polymer technology exhibits 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 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 improvedrheology, the new linings exhibit superior flow and leveling, providing a more uniform and even thickness over the entire surface and enabling the accurate control of the film thickness, while the light colors 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 longitudinalstress, preventing material ruptures, breaks and fissures.
The materials passed explosive decompression testing according to NACE TM0185 international standardsat 120°C/248°F and 70 bar pressure and have also passed the Steam-out testing at 210°C/410°F for 96 hours.
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