LaHabras Fiber-47 Scratch & Brown Concentrate Stucco Base can be applied over properly prepared masonry and concrete substrates, and code-conforming lath assemblies. It can also be finished with integrally colored LaHabra Premium Stucco or Perma-Flex Acrylic Stucco Finish. Fiber 47 Concentrate is designed to allow mixing on your jobsite with sand.