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Home  > Raw materials & technologies  > Applications  > Protective & Marine coatings  > Epoxy anticorrosive has antifouling proper...

Thursday, 19 September 2019
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Raw materials & technologies, Applications, Protective & Marine coatings

Epoxy anticorrosive has antifouling properties

Monday, 15 July 2013

A new epoxy coating from PPG has a dual function: It can be applied both as an anticorrosive and as an antifouling tiecoat.

The epoxy marine coating combines anticorrosive and antifouling properties 

Source: Limnomar

The epoxy marine coating combines anticorrosive and antifouling properties 

Source: Limnomar

PPG Industries has launched "Sigmacover 580”, an epoxy anticorrosive/tiecoat developed for fast turnaround of vessel maintenance in dry dock. The coating is designed to provide ease of use and economical application. It can be used at temperatures down to 5° C, allowing for multiseason application.

Dual-use: anticorrosive and antifouling tiecoat

Sijmen Visser, PPG global marketing manager - marine, calls the coating "a spot-repair solution for the dry dock market", to be used in areas that need spot blast of 40 percent or less. "It is an epoxy coating for underwater hulls that functions both as an anticorrosive and as an antifouling tiecoat", Visser said in a product announcement.

"This dual-use formulation means that it can be overcoated directly with a range of antifoulings and is suitable for use during routine maintenance and repair dry dockings."

Reducing application time and increasing productivity

Once a vessel is in dry dock, the product can be applied to pre-blasted areas for spot repair in a single coat at a dry-film thickness (DFT) of 250 microns (9.9 mils). Once this layer is dry, the antifouling paint can then be applied directly over it.

Simplifying the underwater hull specification and eliminating the need for a second anticorrosive or tiecoat layer reduces application time and increases productivity, Visser said.

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