This material has the look and feel of natural stone but is actually more durable due to its engineered make-up. Engineered stone is typically made of 90-94% natural quartz, manufactured with resin, colorants, and other materials. The result is a material that is stain resistant, does not require sealing, and will not promote bacterial growth. This material also typically comes with a minimum ten (10) year residential warranty from the manufacturer. Other engineered materials are Porcelain, Recycled Glass, and Sintered Stone.