Sigmadur 188 / 520 / 550 by PPG is a two-component, aliphatic acrylic polyurethane finish coating engineered for exceptional durability and weather resistance. Designed for protective and decorative applications across a wide range of environments, this topcoat delivers long-lasting gloss and color retention, even under harsh atmospheric exposure.
Ideal for both industrial and marine structures, the Sigmadur range offers excellent recoatability—even after prolonged exposure—making it highly versatile for maintenance and repair projects. It cures at temperatures as low as -5°C (23°F) and resists splashes from a variety of oils and mild chemicals, ensuring long-term surface protection.
Key Features:
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Unlimited recoatability – perfect for long-term maintenance cycles
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Excellent resistance to UV, weather, and atmospheric exposure
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Retains gloss and color over time
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Cures in low temperatures down to -5°C (23°F)
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Resistant to splashes of mineral/vegetable oils, paraffins, and mild chemicals
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Smooth application and finish
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Versatile for multiple environments
Recommended Uses:
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Structural steel and equipment in industrial environments
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Offshore platforms and marine infrastructure
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Chemical and petrochemical plants
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Refineries and power plants
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Facilities requiring extended aesthetic and corrosion protection
