Arcus Plaster Medium

Arcus Plaster Medium

Arcus Lime Plaster (Medium) is a natural plaster product that combines the timeless beauty of old-world lime plaster and 21st century technology to outperform any traditional product on the market today. Formulated from hydrated lime, fine-grain sand and proprietary natural additives, it contains a slightly larger aggregate than the “Fine” version of Arcus Lime Plaster to create a striking Marmorino-style finish at a fraction of the cost of comparable European plasters.

A colored finish coating, Arcus LimePlaster can be applied over EIFS, stucco, sheetrock, cement board and many other substrates. In addition to its ease-of-use, durability and advanced aesthetics, Arcus LimePlaster (Medium) delivers many health and environmental benefits. 

Made in USA, it is an ideal interior/exterior finish for today’s designer or applicator that combines striking beauty and superior performance.

Arcus Plaster Medium

Arcus Plaster Medium offers exceptional workability, allowing skilled applicators to achieve a range of finishes from smooth, reflective Venetian textures to softer, hand-crafted looks ideal for heritage restorations. Because the formulation includes marble-rich lime, it provides a breathable finish that performs well in both humid and dry climates. This natural level of permeability makes Arcus Plaster Medium a popular choice for interior feature walls, hotel lobbies, galleries, and other high-end spaces where long-lasting beauty matters.

In modern design, Arcus Plaster Medium is often chosen as a sustainable alternative to synthetic coatings because it uses traditional lime-based ingredients. These ingredients naturally resist mold growth, reduce moisture retention, and provide a healthy indoor environment without harmful off-gassing. When properly installed, the finish becomes stronger over time as it continues to carbonate, which contributes to the material’s excellent long-term value.

Many architects choose Arcus Plaster Medium not only for its proven durability, but also for its ability to complement natural stone, wood, and metal finishes. Its flexible working properties make it well suited to curved architectural details, sculpted surfaces, and recessed panels. Whether used in contemporary spaces or classic decorative applications, Arcus Plaster Medium provides a refined surface that enhances color depth and subtle movement.

Maintenance is minimal, a gentle wipe and occasional resealing typically preserve the rich appearance for years. Because the finish is naturally mineral-based, it remains UV-stable and resists fading, making it reliable for bright, sun-filled interiors.

When selecting decorative lime plasters for residential or commercial projects, Arcus Plaster Medium offers consistent performance, adaptability, and the elegant character demanded by today’s designers. Its balance of beauty and longevity makes it an outstanding solution for projects requiring handcrafted finishes with timeless appeal.

Features & Benefits

Benefits for health and well-being
For a closer look at how Arcus Stonecoat compares to our other finishes, view product details below.

For additional industry information about cementitious and façade materials, you may also visit the American Concrete Institute .

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