Sigmacover 456 by PPG is a two-component, high-build, polyamide-cured epoxy coating designed for long-term protection of steel and concrete structures in atmospheric land and marine environments. This versatile recoatable epoxy serves as both a buildcoat and finish, offering exceptional corrosion resistance, durability, and application flexibility.
Engineered for ease of use, Sigmacover 456 can be applied by airless spray or brush, even under low temperature conditions (down to -10°C / 14°F) and high humidity (up to 95%), without compromising the coating quality. Its tough, flexible film resists water and mild chemical splashes, making it ideal for industrial, marine, and infrastructure applications.
High-build epoxy coating suitable as buildcoat or finish
Excellent corrosion resistance for steel and concrete
Cures at low temperatures down to -10°C (14°F)
High humidity tolerance during application (up to 95% RH)
Easy to apply via airless spray or brush
Recoatable after long weathering periods
Compatible with aged alkyd, chlorinated rubber, and epoxy coatings
Resistant to water and mild chemical splashes
Provides a tough, flexible protective layer
Protective systems for steel structures in marine and industrial environments
Concrete structures exposed to harsh atmospheric conditions
Maintenance coating over aged, sound coatings
Recoatable surface in long-term multi-coat systems
Ideal for use in shipyards, offshore platforms, power plants, and infrastructure projects
