Plaster

Introduction A plaster shadow-reveal niche is a recessed wall pocket finished with thin plaster edges that create a crisp, shadowed outline for shelves or display. It’s built by framing the cavity, setting straight beads and corner profiles, and planning for crack control where the plaster meets different materials. This is a hands-on job that rewards […]

Introduction Plaster repairs around ceiling light boxes are targeted fixes that reinforce the plaster and stop the circular “ring” cracks that form where fixtures meet the ceiling. This means cleaning the crack, adding a reliable backing or reinforcement around the box, and patching with an appropriate plaster or joint compound following the product directions. Treat

Introduction Fixing rust bleed through plaster means stopping iron staining at the metal source and isolating it so stains don’t reappear through new finishes. In practice that means exposing the area, treating or replacing corroded metal, and using an appropriate isolation/stain-blocking primer before replastering or painting. Check product labels and manufacturer instructions for compatibility with

Introduction Plaster undercoats on CMU are the first bonded layers of cement or gypsum-based material applied to concrete masonry units to create a flat, sound surface for finish coats. They include types like cementitious scratch coats and bonding or leveling coats; check the product label and manufacturer instructions to pick the right one for your

Introduction Adding fibers to plaster means mixing natural fibers like hemp, cellulose, or horsehair into a lime or clay binder to improve crack resistance and tensile strength; choose the fiber type and preparation based on the binder and final exposure. From a DIY foreman’s view, hemp is strong and long fibers need chopping, cellulose is

Introduction Microcracks in lime plaster are usually small surface crazing that forms as the plaster dries and shrinks; they are often cosmetic and not a structural failure. Look at crack width, depth, and whether it goes into the substrate to decide; if unsure, check the product label or manufacturer guidance for allowed hairline cracking. In

Introduction Casein paint is a milk-protein–based paint and lime plaster is a breathable, alkaline render; used together they can work but only with the right prep because lime’s high alkalinity and porosity can make paints fail. In plain terms: casein can bond to lime if the plaster is clean, stable, and its surface chemistry is

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,

Introduction Plaster feather edges that don’t flake are thin finish edges keyed and bonded to the existing surface, wetted and timed correctly so the new plaster grabs without lifting. Check whether the area needs repair by tapping or scraping loose material and by checking for movement; if substrate is dusty, crumbling, or contaminated you must

Introduction Getting dead-flat plaster walls means using straightedge checks and a stepwise build-up of layers until any high or low spots are leveled out. It’s a practical process of finding the worst deviations, feathering in material, and rechecking with a straightedge until the surface reads flat to the eye and tool. Expect to use joint