DirtPick-UpResistance之战

1The Dirt Pick-UpResistance BattleTerri John-SynthomerTechnical Service Manager21.Definition2.Factors Affecting DPUR3.Test Methods4.Accelerated Testing Data5.Exterior Exposure Data6.Summary3What is Dirt Pick-Up Resistance?Dirt pick-up resistance (DPUR) is a coating’s ability to resist discoloration due to the deposition of particles from theenvironment.Why isDirt Pick-Up Resistanceimportant?Aesthetics-Dirty buildings are not very attractivePotential Energy savings̶Coatings which are white in color and cleaner reflect the sun better and can assist in keeping a building coolerCost Containment-Saves money and time on cleaning and repainting̶Some types of building stains or discoloration are only cosmetic, while others may indicate growths that couldreduce coating service life such as on siding, or trim.The Dirt Pick-Up Resistance BattleDirt Pick-Up Resistance4The Dirt Pick-Up Resistance BattleFactors Affecting Dirt Pick-Up Resistance15The Dirt Pick-Up Resistance BattleWhy is Better Di