Cement Masons

Operative Plasterers’ & Cement Masons’ International Association

Local 633


OPCMIA members represent skilled Plasterers, Cement Masons, Shop Hands and associated Members. Plasterers finish interior walls, and ceiling of buildings, apply plaster on masonry, metal, wire lath or gypsum.

Bridges, canals, dams, reservoirs, roads, buildings and many other engineering feats would be impossible without the skills of OPCMIA Cement Masons. Cement Masons are responsible for all concrete construction, including leveling and finishing of all slabs, steps, wall tops, curbs and gutters, sidewalks, paving, as well as concrete “Polishing” and numerous concrete coating applications and other concrete construction.

Plasterers use brushes, trowels, or spray guns to apply coats of plaster or stucco to interior or exterior walls, ceilings, and partitions of buildings and structures to produce a finished surface. They also install exterior insulation finish systems, fireproof building assemblies with plaster materials, and spray fiberglass, or other similar materials, whether applied to gypsum, metal lath, or directly.


To join an apprenticeship program you must be 18 years old, have a high school diploma or GED and the physical ability to do the work.

Apprenticeship Training includes a minimum of 144 hours of combined classroom and shop instruction. Over the course of your Apprenticeship you will also receive 6000 hours of on-the-job training designed to educate you in all the theories and practices of the Cement Masons’ and Plasterers’ Crafts.

On-the-job training is completed by the Apprentice working full-time with a contractor, and Related Training is completed at training facilities. There is no charge for tuition. Apprentices are required to purchase books each school year. Local 633 Cement Masons- Offices in Minneapolis, Rochester, Duluth with our Training Center in New Brighton


Dave Schutta, Business Manager
312 Central Avenue SE, #376
Minneapolis, MN 55414

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