Ppg SigmaCover 456 Epoxy Finish, All Colours

Two-component, high-build, polyamide-cured recoatable epoxy coating for steel and concrete structures exposed to atmospheric land or marine conditions.
Key properties: Anticorrosive, water- and mild chemical-resistant, cures even at temperatures down to -10°C (14°F).

Product Features & Benefits

• General-purpose epoxy buildcoat or finish for protective coating systems
  
• Suitable for steel and concrete in atmospheric land or marine conditions
  
• Easy application by airless spray and brush
  
• Cures down to -10°C (14°F)
  
• Tolerant of high humidity (up to 95%) during application and curing without loss of quality
  
• Good adhesion to most aged, sound alkyd, chlorinated rubber, and epoxy coatings
  
• Can be recoated with two-component and conventional coatings, even after long weathering periods
  
• Resistant to water and mild chemical splash
  
• Excellent corrosion resistance
  
• Tough and flexible for long-term durability
  
• Colours: Standard and custom colours available
  
• Gloss level: Semi-gloss
  

Method of Application

• Air spray
  
• Airless spray
  
• Brush/Roller
  

Notes

• Epoxy coatings chalk and fade when exposed to sunlight
  
• Substrate temperature during application/curing:
  
• Minimum: -10°C (14°F), surface must be dry and free of ice
  
• Should be at least 3°C (5°F) above dew point
  
• In exceptional cases: application possible down to -15°C (5°F), but requires careful control of film thickness to avoid defects (checking, crazing, solvent entrapment)
  
• Additional thinning may be required at lower temperatures to maintain viscosity, but this can reduce sag resistance and increase solvent retention
  
• Optimal curing and full product performance achieved only when minimum substrate temperature is reached