Abstract: Various improvements for polymer modified cementitious compositions are disclosed. A dry mix for making a polymer modified cementitious composition especially useful as a stucco material, which includes a dry, redispersible, non-reemulsifiable polymer at a polymer-cement ratio of between about 0.04:1 to about 0.15:1, is disclosed. Also, the use of sodium acyl (coco) isethionate as a superior wetting agent in polymer modified cementitious composition is disclosed. In addition, the use of non-bridging, plastic fibers for use in pumpable cementitious compositions is disclosed.