How to Check Quality of Quartz Slabs

Updated: 2026/5/18

Do not buy sight-unseen slabs or based on a tiny sample.

Inspect Full Slabs: veining scale and color consistency only show on full-sized slabs, check them under both natural light and warm LED light.

Verify the Resin: cheap resin causes yellowing over time, for kitchens with direct sunlight, ask specifically for UV-stable resins.

Check Composition: good quality slabs contain 90-93 natural quartz, the rest is resin and pigment.

Source: StoneADD
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