Unity Temple
Plaster today consists of a wide variety of coatings that include gypsum, lime or cement. Depending on their composition, plaster can be used both inside or out directly applied to walls or incorporated into finishing systems.
Types of Plaster
Traditional Plaster has a track record that goes back centuries. Direct applied to an interior surface with or without metal lath. Usually consist of three coats of plaster applied to metal lath.
ASTM C-842, Standard Specification for Application of Interior Gypsum Plaster.
1 -2 coat application applied over approved substrate consisting either a gypsum based blueboard or masonry surface. A quick setting time makes this a popular plaster system.
ASTM C-587, Standard Specification for Gypsum Veneer Plaster. ASTM C-1396, Standard Specification for Gypsum Board
A Portland cement, sand and water mix first developed by the Romans used for its durability and low maintenance. Can be colored and finished in a wide range of choices. Works well with a CMU and concrete base substrates.
ASTM C 926, Standard specification for application of Portland cement –based plaster. ASTM C 1063, Standard specification for Installation of lathing and furring to receive interior and exterior Portland Cement-based plaster
Lime based traditional plaster mixed with marble dust applied in thin multiple layers that can come in a range of colors, finishes and techniques. There are also synthetic products manufactured to imitate the look of traditional Venetian plaster
Plastering that includes preservation, restoration, and replacement of ornamental moldings either through repair or replication of existing ornamental moldings or reliefs. ASTM C 926, Standard specification for application of Portland cement –based plaster
Low density sound absorbing plaster applied as a finish coat. ASTM C423 Sound Absorption Test Guidelines
Plaster Photo Gallery
Plaster Industry Groups
The International Masonry Institute (IMI) is a strategic alliance between the International Union of Bricklayers and Allied Craftworkers and the contractors who employ those members. Through education, technical support, research and training the IMI works to provide a more efficient construction delivery system.