Page 32: of Maritime Reporter Magazine (October 2003)

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Repair & Conversion

SPS Overlay: Fix Steel Decks Faster

Despite the quality of protection and commitment to maintenance, a certainty in the marine business is that metal structures eventually corrode and wear.

Whether it is 25 months or 25 years, most all marine structures will enter a shipyard for some quantity of steel renewal throughout its life. While the process of removing and replacing steel.

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Circle 288 on Reader Service Card particularly decks, is at best a manual and laborious process, Intelligent

Engineering (IE) is touting its innova- tive SPS Overlay structural reinstate- ment process as a means to help shipowners and ship repairers to save valuable time and money.

What is SPS?

SPS, invented by IE in association with BASF, is a patented system where- by two metal plates are bonded to a solid elastomer core. The elastomer provides continuous support to the plates and stops local plate buckling and eliminates the need for stiffeners. The flexural stiffness and strength of the sandwich plate is tailored to meet particular static and dynamic structural requirements by selecting appropriate thicknesses for the sandwich elements.

Simply put. instead of ripping out a worn deck and replacing it with a new one, the old deck is shot blast, perimeter bars and new top plates are welded onto the old deck, and an elastomer is inject- ed into the cavities. The process has been under development for nine years, and according to Denis Welch, Director,

SPS Overlay, Intelligent Engineering, it is typically four times faster than rip and replace. He cites experience with the back-to-back repair of three RoRos at a rM MS SEAARK

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Circle 297 on Reader Service Card 30 Maritime Reporter & Engineering News

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Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.