plasterbased

Plasterbased refers to materials and products derived from plaster and used in construction, decoration, and sculpture. The term covers plaster systems that rely on gypsum plaster, lime plaster, or cement-lime blends, often with aggregates, applied to substrates such as lath, plasterboard, masonry, or metal mesh. Gypsum-based plasters, or plaster of Paris, set by hydration and provide a lightweight, smooth interior finish suitable for walls and ceilings. Lime-based plasters use lime putty or hydraulic lime and are valued for breathability, elasticity, and durability, making them common in traditional construction and restoration. Cement-lime or cement-based plasters combine Portland cement with lime to improve strength and reduce setting time, while trying to retain some breathability.

Applications include interior wall finishes, ceilings, decorative plasterwork, and ornamental elements such as cornices and mouldings. Plasterbased materials are also used as skim coats over modern substrates to create continuous finishes. In historic buildings, plasterbased systems are used for restoration and replication of original plasterwork; in contemporary practice, gypsum plasters are widely employed for drylining and decorative plastering.

Key considerations vary by type: gypsum plaster is light, fast-setting, and easy to work with but tends to be less moisture-tolerant; lime plaster is more permeable and flexible but slower to cure; cement-based plasters are strong and moisture-resistant but can be less breathable. Substrate preparation, moisture control, and skilled workmanship are essential to ensure durability and a quality finish.