DescriptionTwo-component, surface-tolerant, high-build, polyamide-cured epoxy primer/coating.PRINCIPAL CHARACTERISTICSØ Excellent corrosion resistance.Ø Good flexibilityØ Surface tolerant coating for lower grade of steel preparation.Ø Good drying and curing property.Ø Easy application by different application methods such as airless spray, brush etc.Ø Low temperature version available if requiredRECOMMENDED SUBSTRATE CONDITIONS AND TEMPERATURES Atmospheric exposure conditionsSteel; blast cleaned to ISO-Sa2½ for excellent corrosion protectionSteel; blast cleaned to ISO-Sa2 or power tool cleaned to ISO-St2 for good corrosion protectionShop primed steel; pretreated to SPSS-Pt2Galvanized steel; sweep blasted to roughen the surface and to remove any zinc salts which might be presentStainless steel; degreased and sweep blast (SSPC SP-16) cleaned to roughness of 40 – 70 µm (1.5 – 2.8 mils) with nonferrous abrasive.Substrate temperatureØ Substrate temperature during application and curing should be above 5°C (41°F)Ø Substrate temperature during application and curing should be at least 3°C (5°F) above dew point.INSTRUCTIONS FOR USEMixing ratio by volume: base to hardener 80:20 (4:1) • The temperature of the mixed base and hardener should preferably be above 15°C (59°F), otherwise extra thinner may be required to obtain application viscosity • Adding too much thinner results in reduced sag resistance and slower cure • Thinner should be added after mixing the components.Contact us at Morven Industrial Ltd to place an order for PPG Sigmacover 620. Click on this link to download the technical data sheet of PPG Sigmacover 620. Our technical team is available to provide every technical support needed.
