PPG SigmaDur 550 formerly Amercoat 450E or Amercoat 450S is a high performance, durable, two component, aliphatic, acrylic, polyurethane coating that offers excellent colour and gloss retention when exposed to UV light and has been approved by Highways HA Item 168. Part of the Wims specification Water Information Management Solution and NORSOK M-501.
PPG Protective and Marine Coatings is a world leading brand name that provides protective, marine coatings on a global scale. SigmaDur 550 is part of this fantastic range that can be applied to a number of surfaces based in a marine and industrial environment including bridges, pipelines, refineries, tanks and storage facilities. SigmaDur 550 is a non yellowing product, highly resistant to weathering and UV light and works best when exposed to atmospheric conditions.
PPG SigmaDur 550 is best applied by airless sprayer but can be applied using paint brush or roller. This remarkable product from the Sigma range offers a fast curing time of just 1 hour to touch and can be recoated after a minimum period of 6 hours has elapsed. SigmaDur 550 can be used to achieve a theoretical coverage rate of 11m2 per litre.
PPG SigmaDur 550 is an industry leading product, used worldwide for protecting steel structures in a marine based environment and is highly durable for up to 10 years, saving you money on maintenance cost as well as time. Not only is SigmaDur 550 resistant to weathering but also works to protect the coating against chemicals and splash from oils, paraffins and aliphatic petroleum products commonly found in a marine/industrial environment.
Sigmadur 550 Data Sheet
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