1 Introduction2 Scratch and Mar Resistance3 Gloss Enhancement4 Surface Matting (Flattening) 5 Tack-free Surface6 Tackifiers7 Surface Tension and Wetting8 Easy Surface Cleaning and Stain Inhibition9 Dirt Pickup Resistance10 Water Repelling (Hydrophobization)11 Anti-cratering and Leveling12 The Coefficient of Friction