What is Cultured Marble (Cast Marble)? How is it made?

Cultured Marble Shower Panels and Pans by DOMO

Cultured marble—also called cast marble—is a premium, durable material made from ground natural stone and polyester resin. At DOMO, we specialize in manufacturing cultured marble shower panels and shower pans that combine the elegance of stone with the low-maintenance benefits of a solid surface.

In a Nutshell

Cultured marble showers are built from large wall panels rather than small tiles or fiberglass one-piece units. The material is a blend of ground natural stone and polyester resin, poured into molds and cured to create a solid, non-porous surface. The result is a product that combines beauty with durability—without the high maintenance of tile or the low-end look of fiberglass.

The Manufacturing Process

  1. Mold Design – Molds determine the size, pattern, and texture of each panel or shower pan. DOMO offers an extensive selection and continually develops new designs.

  2. Selecting Raw Materials – High-quality, locally sourced stone and premium polyester resin from trusted U.S. suppliers form the foundation of our cultured marble.

  3. Spraying Gel Coat – A marine-grade gel coat is sprayed onto the mold to create a permanently sealed, non-porous surface that resists mold, mildew, and staining.

  4. Mixing – Stone and resin are blended in a precise, computer-controlled process to ensure strength and durability.

  5. Pouring – The mixture is poured into the mold over the gel coat.

  6. Curing – The product hardens during a controlled curing process, developing its final strength and dimensional stability.

  7. Finishing – Panels are removed from the mold, inspected, and finished with smooth edges—reducing the need for trim and speeding up installation.

  8. Packaging – Products are securely packed in custom crates and shipped directly to the job site.

Cultured Marble Material Advantages

Installation is fast and straightforward. Panels are trimmed to fit and bonded with adhesive or silicone, while one-piece shower pans are simply set in place and connected to plumbing.

No grouting, sealing, or resealing is ever required. Cultured marble is groutless, non-porous, and permanently sealed, ensuring easy cleaning with standard shower cleaners and long-lasting performance.

Versatility in Design

Cultured marble offers exceptional design flexibility. DOMO can produce patterns that look like real tile, complete with textured grout lines, or sleek, smooth finishes for a contemporary look.

From hotels to multi-family residences, cultured marble delivers a premium appearance, outstanding durability, and minimal maintenance—making it an ideal choice for high-traffic, design-conscious projects.

Applications

Perfect for hotels, apartments, and commercial bathrooms, DOMO’s cultured marble products deliver a high-end look without the maintenance of tile or the cheap feel of fiberglass.

Upgrade your next project with cultured marble shower systems—the smart, stylish, and long-lasting solution.

 

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