Quartz is the major filler, although other material like coloured glass, shells, metals, or mirrors might be added. A typical material will consist of 93% quartz by weight and 7% resin. Different types of resins are used by different manufacturers. Epoxy and polyester resin are the most common types. Chemicals such as UV absorbers and stabilizers are added. To aid curing, peroxide is added.Engineered stone is typically worked in the same way as natural stone using a water jet cutteror a diamond blade. This is in contrast with solid surface materials which can be cut with regular saws.

The material can be produced in either 12 mm, 20 mm or 30 mm thicknesses. The most common slab format is 3040 mm x 1440 mm, but other sizes like 3040 mm x 1650 mm are produced according to market demand.

Engineered stone is a composite material made of crushed stone bound together by a polymer resin . It is used primarily for kitchen countertops . Related materials include geopolymers and cast stone . Unliketerrazzo , the material is factory made in slabs, cut and polished by fabricators, and assembled at the worksite.

Engineered stone products are gaining in popularity and are sometimes preferred over granite products because engineered stone requires less maintenance. Compared to unsealed granite, it has better resistance to stains.[1] However, recent research reported in Consumer Reports magazine reveals virtually no difference in performance between quartz products and sealed granite.

Engineered stone kitchen countertops with undermount sink and cooktop installed. Tops are cut and polished at the fabricator’s shop.

Engineered stone is also commonly referred to asagglomerate or ‘quartz surface’, though it is possible to create solid surface using fillers other than quartz.

Engineerd stone is typically stronger in flexibility and hardness, and less porous, than natural stone, but not in all cases. It is typically uniform in structure leading to inherent strength, whereas natural stone may by-nature contain fissures, cracks, or weaknesses in structure. Its polyester resin binding agents allow some flexibility, preventing cracking under flexural pressure. But, the binding agents often continue to harden, leading to a loss of flexural strength over time. The polyester resins are not completely UV stable and engineered stone should not be used in outdoor applications. Continuous exposure to UV can cause discoloration of the stone, and breakdown of the resin binder. The material is damaged by direct application of heat, and should not be used close to a direct source of ignition.

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