Scrubber units are pristine 10 years after coating

Posted On : Monday, September 19th, 2011 in News

Corrocoat SA has been successfully protecting 28, 18 and 12-cascade tube gas handling scrubber units for over 10 years on behalf of Outotec –the leading global provider of process solutions for the mining and metallurgical industries.

A typical Outotec gas handling scrubber comprises some 60 pieces of stainless or mild steel covering approx 500 sq.m. Prior to the involvement of Corrocoat SA the scrubbers suffered from droplet erosion and pitting corrosion and if left unprotected had a life expectancy of less than 12 months.

Carrying out the work in its Johannesburg Workshops, Corrocoat SA first blast clean all surfaces to Sa 2 ½. They then coat the internal surfaces with Polyglass VE, GRP line to a nominal thickness of 1mm, and apply Corrothane XT to those parts requiring protection for gas temperatures in the 170-250 C range. Once cured all surfaces are 100% high-voltage spark-protected and any defects repaired prior to post-curing at 80 C for 12 hours.

As a result of this comprehensive protection package the working life of each scrubber has increased dramatically. In fact 18 units have been protected over the last 10 years with zero failures.

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