PRODUCTION • PROCESSING • HANDLING
Metales contaminados corroídos: ¿Cuál es la solución? por Levente Bazsanyi
Korrodierte kontaminierte Metalle: Was ist die Lösung? Von Levente Bazsanyi
RAPID REPAIRS O
Emergency situations demand
Corroded contaminated metals: what’s the solution? By Levente Bazsanyi
ne of the major challenges faced by maintenance engineers across many industries is the extremely limited amount of time in which an urgent
Belzona 1212 applied to seal a pipe leak
repair, such as a pipe or tank leak, must be carried out. In the real world, when a rapid repair is required, ideal surface preparation is not always an option. However, many available polymer repair solutions are not compatible with minimal surface preparation, and therefore, can often lead to failure. Tis article focuses on the latest epoxy technology of a new two-component paste grade material that achieves a quick, durable repair also in oil contaminated, cold, wet and underwater areas. Tis cold curing system achieves excellent adhesion to manually prepared substrates where grit blasting is not possible. Due to its low temperature cure and capability of being applied underwater, this product is ideal for the
long-term repair of offshore structures, splash zones and marine vessels. Producing faster curing epoxy materials and those curing at lower temperatures have long been goals of protective coatings and repair composites manufacturers. Improved production rates, reduced time, as well as the ability to apply materials at lower temperatures and extend equipment life are attractive benefits to the coating supplier, applicator, end-user and owner alike. A critical aspect of any coating or
repair material is its ability to adhere to the substrate. Common standards for coatings and repair materials require at least a 75 micron angular profile and SA 2.5/NACE No. 2 /SSPC-SP 10 near white metal surface cleanliness. In addition, it is critical that the substrate be clean, dry and free of any contaminants. Unfortunately, meeting all these requirements in the field can often be difficult, if not impossible.
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