Search Results for: contractor cement

Introduction Salts in masonry plaster are soluble minerals that migrate to the surface as moisture moves through the wall, leaving white or powdery deposits called efflorescence and in worse cases causing spalling where the plaster flakes or crumbles. This usually comes from water intrusion, damp soils, or moisture wicking through masonry and carries salts via […]

Introduction Plastering over painted masonry can be a challenge due to the existing paint layer. To ensure a strong bond and prevent peeling, decontamination is crucial. The process involves removing contaminants that could compromise adhesion. By following these steps, you’ll improve the bond between your new plaster and the painted surface. Key takeaways Assess feasibility

Introduction Veneer plaster repairs are the process of fixing damaged plaster by feathering new material into the old so the wall looks continuous and solid. This means assessing whether the existing veneer is well-bonded, cleaning and wetting the surface, and choosing a compatible patching mix and bonding method. I’ll focus on practical steps you can

Introduction Plaster over blueboard means applying a veneer plaster finish bonded to the paper-faced gypsum board rather than feathering multiple coats of joint compound; it’s a different material and technique used when a harder, smoother surface is wanted. Veneer plaster generally requires cleaner, keyed surfaces and different tools than joint compound, so check product instructions

Introduction Plaster drying is the loss of surface moisture while curing is the chemical hardening process that gives plaster strength; both happen but on different timelines. In plain jobsite terms, the surface can look dry long before the gypsum or cement bond fully sets, so painting too soon risks adhesion problems. Check product labels and

Introduction Polished lime plaster in wet areas is not automatically waterproof; it’s a breathable finish that can resist splashes when detailed and sealed correctly. In practice that means treating the wall system—substrate, cement backer, membranes, and sealers—as a complete assembly rather than relying on the lime plaster alone. Check product labels and manufacturer instructions for

Introduction Plastering over old calcimine paint means confirming the paint is the flaky, powdery lime-based finish that repels new plaster and then removing or treating it so plaster can bond. I’ll show simple tests to identify calcimine and practical fixes for adhesion problems you can do with common tools. If a product or spec matters,