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To keep your black quartz sink black, consumers must: • Scientific cleaning: Daily cleaning and regular deep cleaning; • Careful maintenance: Use protective agents to avoid extreme damage; • Good habits: Always dry your sink after use to reduce the accumulation of water stains and grease.

Scratches on black quartz sinks are not irreparable. Minor scratches can be corrected with daily polishing or cleaning. Moderate scratches can be effectively treated with fine sandpaper or a specialized repair agent. Severe scratches require professional intervention.

The hardness of the quartz kitchen sink is relatively high, usually reaching a Mohs hardness of about 7. This means that it is harder than materials such as glass and ceramic, but quartz kitchen sinks may still be scratched when they collide with harder materials.