Matt L.

Introduction Shellac and waterborne sealers can stop plaster stains from bleeding through paint. They work by sealing the porous plaster so pigment and moisture don’t migrate into the top coat. Choose the right option by checking product guidance and local rules. Surface prep matters: clean and dry the plaster, repair any cracks, and wipe away […]

Introduction Plaster delamination after painting is when the painted surface loses adhesion and the plaster layer peels or flakes away from the wall. It often points to issues with the primer, the presence of moisture, or salt-related damage behind the paint. Look for peeling edges, bubbling, or a chalky feel as you inspect the area.

Introduction Repairing plaster keys from the back side means fixing the hidden anchors behind the plaster when you can reach them. You work from the cavity side, not the face, and you aim to reattach loose plaster to the lath or keys. This approach relies on solid access and careful placement to lock the repair

Introduction Skim coating over oil paint is applying a thin bonding layer that helps a fresh primer and paint stick to a glossy or aged surface. It’s a practical step for surfaces that feel slick or have peeling spots. Start by cleaning the area, scuffing the surface to roughen it, and then applying the skim

Introduction Setting-Type Compound on Plaster is a fast-setting patching material that cures through a chemical reaction, not just by drying. On plaster walls, it can provide a hard, sandable surface and may cut touch-up time compared to traditional topping compounds. Check label instructions and local rules for mix ratios, open time, and ventilation before starting.

Introduction Plaster and joint compound are traditional wall repair options that serve different purposes. Plaster gives a hard, durable finish when applied over lath or backing, while joint compound is a softer patch material for seams and small repairs. Your choice depends on the location, the surface, and the level of patch you need. In