Soapstone is a natural metamorphic stone prized for its non-porous surface, heat resistance, and unique dark patina. Fabricating a soapstone sink requires precision and an understanding of the material’s softness compared to granite. The process typically begins with a template of the sink basin, followed by cutting the stone slab using a wet saw with a diamond blade to avoid chipping. Edges are shaped with routers, and the sink is polished with fine-grit sandpaper, gradually moving from 80 to 400 grit to achieve a smooth finish.

After fabrication, oiling is crucial. Soapstone, while non-porous, can show water spots and scratches if not treated. The most common method is applying mineral oil—food-grade and colorless. Use a soft cloth to rub a thin layer of oil onto the entire sink surface, including the rim and drain area. Let the oil sit for 15–20 minutes, then buff away any excess with a clean, dry cloth. This process darkens the stone and creates a uniform, water-repellent sheen.

For maintenance, re-oil the sink every 2–4 weeks during the first few months, then monthly or as needed. Avoid harsh chemicals; mild soap and water clean best. Minor scratches can be sanded out with 400-grit sandpaper and re-oiled. Over time, the stone develops a natural patina that many homeowners adore. Follow these fabrication and oiling steps to ensure your soapstone sink remains beautiful, functional, and scratch-resistant for decades.