What Is a Stone Composite Tub?

Stone composite tubs have become increasingly popular bathroom fixtures in recent years. Made from a blend of natural and engineered stone materials, these tubs offer durability, stylish aesthetics, and customizability to suit any bathroom design. As interest grows around sustainable and eco-friendly building products, stone composite bathtubs present an intriguing option for homeowners and designers.


Understanding Stone Composite Materials


Stone composite refers to a combination of crushed stone and resin materials used to construct bathtubs, sinks, countertops and other fixtures. Various stone materials like marble, granite or quartz are grounded into tiny fragments, colored, and bound together by a polymer resin such as acrylic or polyester. The composite forms a durable, non-porous and stain-resistant surface perfect for bathware. This manufacturing process allows for versatile options in colors, patterns and finishing. The seamless designs and resilience of stone composite pieces make them a preferred contemporary substitute for porcelain or enameled steel tubs. The material lends itself well to building luxurious free-standing soaking-style tubs. As compared to acrylic or porcelain models, stone composite bathtubs better retain heat and thus provide greater temperature consistency for baths. The surface also resists chipping, fading and damage from regular bathroom cleaning products. These advantageous characteristics account for the rise in stone composite tubs in high-end resorts, hotels and residential spaces.


Types of Stone Composite Tubs


Though broadly categorized as stone composite, these luxury tubs can incorporate various natural and engineered stones in their construction. Marble composite using pulverized white or gray marble particles offers a veined look. Granite composite delivers excellent durability thanks to the density and hardness of granite. Quartz composite uses quartz aggregates to provide an astonishing array of color and finish options like sparkling glass flakes. Beyond these, metal composite blends natural stone with metals like copper or zinc for bold contemporary styling. Depending on client needs and installation spaces, stone composite bathtubs are available in rectangle, oval, round or slipper shapes and built-in or freestanding models. More elaborate custom tubs let homeowners configure multi-sided or curved models to desired dimensions. High-gloss, matte or unique textured finishes expand the design flexibility of stone composite tubs.  


Is a Composite Bathtub Good?


Given their exquisite appearance and higher cost compared to regular acrylic or porcelain tubs, a common consumer question is whether investing in a composite stone bathtub worthwhile. The answer lies in their impressive longevity and low maintenance requirements. The durable blended stone material resists scratches, staining and discoloration more effectively than plastic-based or enamel-coated tubs. Easy cleaning of composite surface also preserves the as-new visual quality for over twenty years. The surface can tolerate regular bathroom cleaning fluids without damage unlike acrylic. Design flexibility also allows for custom sizing, multi-user dimensions and accessories like chromotherapy lighting. Additionally, the greater heat retention keeps bath water warm for longer durations for a pleasant soaking experience. Thus, the return on investing in a composite tub is the assurance of reliability, beauty and luxury over decades.


Installation & Customization


Stone composite tub installation shares broad similarities with most bathtub fixtures. The surface must join squarely and level to the waterproofed and supported sub-flooring without flexing or leaving gaps. Custom-built surrounds may be required to accommodate unique built-in tub designs. Freestanding tubs can utilizeexisting plumbing. Expert support should assemble or oversee atypical constructs with stone composite fabrication. This ensures proper load-bearing strength, access to pump mechanisms if present and preventing damage during installation. Stone composite’s adaptability enables tailoring the tub’s bowl dimensions, depth, shapeand accessories to the client’s lifestyle needs and preferences. For example, a deeper soak tub for taller family members or an accessible height for the elderly or children. The ultra-sheer gloss and smooth textures also create uniqstatement pieces to anchor modern or classic decors.


Environmental Impact and Sustainability


A Baths International study noted that composite stone bathtub consumed over 50 percent recycled content. Pre-consumer recycled stone remnants supply the raw material. That significantly lessens new quarrying operations for virgin stone. Compared to porcelain and enameled steel tubs with high mineral and carbon energy usage, composite tubs utilize lesser manufacturing resources. Their durable construction also minimizes replacements adding to landfill waste. Quartz and select stone composite blends bear certifications confirming sustainable sourcing and conservation efforts in production. For instance, IceStone basins containing 100 percent recycled glass qualify for Cradle to Cradle, NSF ANSI 51 food safety standards and numerous green initiative compliances. Conscious selections help composite tubs support eco-building goals in the luxury bathware space. Homeowners should verify certifications and recycled material integration from manufacturers.


How to Clean Composite Tubs? 


Caring for the pristine good looks and durability of stone composite bathtubs requires mostly simple, regular surface cleaning. General guidelines suggest using a mild, non-abrasive detergent cleaner and soft cloth/sponge combination. Avoid harsh cleaning agents like bleach, alkaline solutions, acetone, alcohol or stain removers formulated for plumbing fixtures as these can etch, pit or discolor the composite material. Powder cleansers must be adequately dissolved before applying to prevent scratches. Follow cleaner product instructions for appropriate dilutions. For best results, clean stone composite lightly after every other use to prevent soap, body oil or mineral residue build-up over time. More extensive monthly cleaning targets hard water scale, soap scum and mildew accruals. In these cases, edge delicately with a plastic scrub pad if necessary before wiping down residues. Even luxury tubs can attract surface grime. But proper care preserves their refined finish.




Stone composite bathtubs amalgamate nature’s beauty and human ingenuity for centerpiece bathroom elegance. TheirPeerless aesthetic options unite cutting-edge manufacturing with earthy materials for a soothing, elegant bathing experience. Though premium-priced, stone composite construction endures for decades and harmonizes with trending interior themes seamlessly. With customization flexibility down to unique shapes and sizes or accessories like chromotherapy mood lighting, these tubs indulge homeowners with luxury and function. Their eco-compliance and recycled material integration also appeal to environment-conscious homeowners. As innovations enhance stone composite offerings and value, these tubs usher restful spa-like pampering into modern homes for good.


Jiaxing Miluo Smart Home Co., Ltd. is a well-established factory with over 20 years of experience in researching, developing, and producing professional artificial stone bathroom products. With strong R&D capabilities, our company offers a wide range of product styles, featuring novel designs that align with international trends. We take pride in our strong production capacity, supported by two factories that have successfully undertaken numerous hotel projects both domestically and internationally. Our commitment is to provide customers with a pleasant shopping experience, offering the best quality products at the most affordable prices. For more information on our MILUO - customized luxury freestanding stone bathtub ST-24(1800) Bathtubs, please don't hesitate to contact our dedicated sales team at Rest assured, we are here to serve you wholeheartedly.



Baths International. "Greening the Bath." Baths International Inc., 2015, Accessed 10 Jan 2023.


IceStone. "Green Standards Compliance." IceStone, 2022, Accessed 10 Jan 2023.


Eco by Cosentino. "The Value of Natural & Eco Friendly Materials |Surface Innovations." YouTube, uploaded by Eco By Cosentino, 19 October 2021, Accessed 10 Jan 2023.

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