Select an acrylic versus a traditional cementitious finish coat for a stucco project

Steps

1. Compare flexibility and crack-bridging: acrylic (polymer-modified) finishes generally tolerate more substrate movement than rigid cementitious finishes
2. Compare breathability: traditional cementitious finishes are generally more vapor-permeable than acrylic finishes
3. Consider color and texture consistency: factory-tinted acrylic finishes typically hold color better and are less prone to efflorescence than field-mixed cementitious color coats
4. Check manufacturer compatibility requirements, since acrylic finishes are often paired with specific proprietary base-coat systems (especially on EIFS)
5. Match the selection to climate and maintenance expectations (e.g., cementitious finishes in high-vapor-drive assemblies, acrylic where crack-bridging is the priority)