two component aliphatic acrylic polyurethane finish - unlimited recoatable - excellent resistance to atmospheric exposure conditions - very good colour and gloss retention - excellent hiding power - good application properties with conventional and airless spray equipment - excellent brush and roll properties - tough, flexible and abrasion resistant - can be used over properly prepared and primed surfaces for most atmospheric applications white and various other colours (see also the SigmaCare Shade Card of PPG Protective & Marine Coatings) - highgloss Mass density Volume solids Recommended dry film thickness Theoretical spreading rate Overcoating interval Full cure after Shelf life (cool and dry place) (data for mixed product) 2 - 3 mils (50 - 75 urn) depending on system - previous coat; (epoxy or polyurethane) dry and free from any contamination and sufficiently roughened if necessary - substrate temperature should be at least 5°F ( 3°C) above dew point - premature exposure to early condensation and rain may cause colour and gloss change - maximum relative humidity during application and curing is 80% Marine Coatings

Induction time mixing ratio by volume: base to hardener 4:1 - power agitate each component to uniform consistency before combining,then again after combining.DO NOT vary portions - the temperature of the mixed base and hardener should preferably be above 59°F ( 15°C), otherwise extra solvent may be required to obtain application - too much solvent results in reduced sag resistance and slower cure - thinner should be added after mixing the components - multiple coats may be required for optimal hiding power in application over dark primers and/or when roller application is used Recommended thinner...

minimum 24 hours 16 hours 14 hours 10 hours maximum unlimited - surface should be dry and free from any contamination substrate touch dry dry to handle full cure - adequate ventilation must be maintained during application and curing (please referto sheets 1433 and 1434) - premature exposure to early condensation and rain may cause colour and gloss change Whilst it is always the aim of PPG Protective & Marine Coatings to supply the same product on a worldwide basis, slight modification of the product is sometimes necessary to comply with local or national rules/circumstances. Under these circumstances...

SIGMADUR 500US March 2011 LIMITATION OF LIABILITY The information in this data sheet is based upon laboratory tests we believe to be accurate and is intended for guidance only. All recommendations or suggestions relating to the use of the Sigma Coatings products made by PPG Protective & Marine Coatings, whether in technical documentation, or in response to a specic enquiry, or otherwise, are based on data which to the best of our knowledge are reliable. The products and information are designed for users having the requisite knowledge and industrial skills and it is the end-user's responsibility...