What are Blanco Siligranite sinks made out of?

Silgranit^® contains 80% natural granite, mixed with acrylic resin, which gives the sink its resilience and ability to be molded into striking designs.

Silgranit^® sinks feature the touch and feel of natural stone. Unlike cast iron and soft composite materials, Silgranit^® combines the best performing ingredients to produce kitchen sinks that are durable, stain resistant, easy-to-clean, and available in a collection of dynamic designs.