Second...
The quartz countertop sector is not regulated – many brands import substandard materials with low quantity and quality of quartz composition, resulting in poor performance. Some use additional ingredients other than Quartz in manufacturing their slabs such as; polymeric or cement-based binders, crushed granite and marble waste material as well as recycled industrial waste products such as ceramic, silica, glass, mirror and more. These products will NOT perform the same as high quality pure Quartz.