How well does plaster or stucco adhere to the block?
Very well. The blocks are a cement based product, which makes them ideal for direct application of stucco or plaster. In addition, the surface of the block is minutely grooved, creating additional surface area for a solid bond. Finally, the block surface has been embedded with fibers for permanent stucco adherence. In essence, the stucco becomes part of the block upon application.