PPG Industries has launched Sigmacover 580, an epoxy anticorrosive/tiecoat designed for fast turnaround of vessel maintenance in dry dock.
The coating is designed to provide ease of use and economical application, according to PPG's protective and marine coatings business. It can be applied at temperatures down to 41°F (5° C), allowing for multiseason application.
Sijmen Visser, PPG global marketing manager - marine, calls Sigmacover 580 "a spot-repair solution for the dry dock market," to be used in areas that need spot blast of 40 percent or less.
Sigmacover 580 is designed for areas that need spot blasting 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."
Once a vessel is in dry dock, Sigmacover 580 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.
More information: www.sigmacoatings.com/marine