Sigmacover 280 by PPG is a two-component, aluminum pigmented, polyamide-cured universal epoxy primer designed for use in protective coating systems. Engineered for steel and non-ferrous metals, this versatile primer offers exceptional adhesion, corrosion protection, and performance even in immersion service and low-temperature environments.
With a dry film thickness (DFT) range of 25–40 µm (1.0–1.6 mils), Sigmacover 280 serves as an ideal sealer or tie-coat, and is also suitable for touch-up applications on weld seams or damaged areas of epoxy coatings during construction. It adheres effectively to a variety of substrates, including galvanized steel, shop primers, and wet blast cleaned surfaces, whether damp or dry.
Universal epoxy primer with aluminum pigmentation
Excellent adhesion to steel, galvanized steel, shop primers, and non-ferrous metals
Functions as sealer or tie-coat in coating systems
Immersion-service ready
Cures at low temperatures (as low as 5°C / 41°F)
Touch-up friendly during fabrication and construction
Compatible with cathodic protection systems
ACQPA 24142 certified for verified performance
Effective on wet blast cleaned substrates
Protective coating systems for steel and non-ferrous metals
Marine and offshore structures
Infrastructure and industrial maintenance
Immersion environments (tanks, pipes, etc.)
Touch-up and repair during construction
As a sealer/tie-coat in multi-layer systems