White Sandstone Marble Series SMC 3-Wall Shower Surround Kit
Kostone Marble Series SMC Wall Panels combine a realistic stone-look surface with reinforced composite strength. Built from Kostone SMC, these panels are strong, water-resistant, and designed for long-term bathroom use. Each Marble Series surface features a decorative fabric layer that creates a highly realistic marble texture with durable wear resistance for residential and project-based applications.
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Product Overview
The Kostone Marble Series is designed for bathroom projects that require the look of natural stone without the complexity, weight, or maintenance of traditional stone or tile installation.
Made with Kostone SMC — a reinforced composite that is strong, water-resistant, and built for long-term use, these wall panels provide a durable surface solution for shower walls, bathtub surrounds, remodel projects, multifamily housing, hospitality bathrooms, manufactured housing, and dealer distribution.
Each Marble Series panel is finished with a decorative fabric layer, creating a highly realistic stone texture with natural visual depth. This surface structure helps deliver a more authentic marble appearance while improving wear resistance and long-term surface durability.
Compared with traditional tile, Marble Series panels help reduce installation complexity, minimize grout maintenance, and provide a clean, consistent wall finish across projects.
Fast & Simple Installation
Designed for efficient shower wall installation. The one-piece design reduces the need for traditional tile setting and grout work, helping contractors complete the shower area in approximately 2 hours, depending on site conditions. For a clean, professional finish, the panels can be paired with aluminum trims at corners and edges.
Designed for Proejcts
Designed for projects where appearance, durability, and installation efficiency all matter. Whether it is used for a single shower wall replacement or a larger multifamily renovation, the Carrara finish gives the bathroom a clean stone-look surface without the complexity of traditional tile work.
Its reinforced SMC structure makes it suitable for wet bathroom environments, while the lightweight panel format helps contractors, dealers, and project teams handle installation more efficiently.
Product Specifications
Product Type
Kostone SMC Marble Series Wall Panels
Material
Kostone SMC / Sheet Molding Compound
Thickness
3.5–5mm, depending on product configuration
Texrure
Different textures available:
Flat Matt
Smal Tile Matt (3"x6")
Medium Tile Matt (4"x8")
Surface
Decorative fabric layer with realistic marble texture
FAQs
Please read to find out more.
What is Kostone SMC?
All Kostone products are crafted fromSMC (Sheet Molding Compound) composite. Stronger and more durable than traditional acrylic, with excellent water resistance to ensure long-term performance in wet areas.
How thick are the panels?
The panels are5 mm thick, but we also offer options of3 mm and 4 mm. Lightweight for easy handling and installation, yet thick enough to provide strength, stability, and a solid feel.
What is decorative fabric layer?
The Marble Series surface is created with a decorative fabric layer that gives the panel a more realistic marble appearance. This layer adds visual depth, natural stone-like texture, and durable surface performance, making the panel suitable for long-term use in residential and commercial bathroom projects.
Are wall panels easy to cut?
Yes. Kostone SMC wall panels are designed for practical jobsite installation and can be trimmed or cut as needed to accommodate field conditions. Installers can adjust the panels for shower layouts, plumbing penetrations, window openings, and other project requirements.
How should the wall panels be properly installed?
Kostone SMC wall panels are typically installed using a combination of double-sided tape and structural adhesive.
During installation, double-sided tape is applied in several key vertical areas, commonly on the left, center, and right sections of the wall panel. Structural adhesive is then applied to the remaining bonding areas before the panel is positioned onto the prepared wall surface.
The double-sided tape helps hold the panel in place immediately after positioning, giving the structural adhesive enough time to cure and form a strong long-term bond. For best results, the wall surface should be clean, flat, dry, and properly prepared before installation.
Cut edges, outside corners, and transitions can be finished with aluminum trims or approved finishing profiles for a cleaner and more professional appearance.