A composite granite sink is an engineered product manufactured using a mix of granite stone dust and acrylic resins molded into sink form. Composite sinks composed of quartz dust and acrylic resins are close cousins and the labels "composite stone " and "granite sink" are sometimes used interchangeably to describe either material. You'll find both pros and cons for including a composite granite sink in your kitchen.
- Durability. Quality composite granite sinks are formed under high pressure, making them nonporous, hygienic, and resistant to heat, stains, scratches, and chips. Plus, unlike natural granite, a composite granite sink surface won't require sealing.
- Variety. You'll find a wide range of styles, sizes, shapes, finishes, and color options to complement your countertops. White, black, and brown remain the most popular color choices.
- Consistency. An authentic granite stone sink features the natural variations of stone throughout the material. A composite granite sink, however, features uniform color throughout the material.
- Cost. A composite granite sink generally costs less than a natural granite sink.
- Durability. Harsh chemicals can damage a composite granite sink, so follow the manufacturer's suggestions for cleaning the surface as well as products to avoid pouring into the sink. Some composite granite sinks can be damaged by heat, resulting in blemishes from melting resins, and the material does scratch. Check the manufacturer warranty and select a product designed for high heat-resistance.
- Hardness. While some sink materials are more forgiving, composite granite is hard enough to break glassware when dropped onto the surface.
- Color uniformity. If you want the authentic look of granite, a composite granite sink is uniform in pattern and color and doesn't feature variations like natural granite.
- Costs. Quality composite granite sinks are more costly than sink materials such as stainless steel and porcelain.