What Are the Main Antimicrobial Technologies Used in Stainless Steel Sinks?

Current mainstream technologies include:

1. Alloy-based antimicrobial (built-in): Antimicrobial elements like silver or copper are added during smelting. The effect penetrates the entire material, offering the most durable and reliable performance, typical of premium products.
2. Surface coating technology: Application of coatings containing silver ions or photocatalysts (e.g., TiO₂) via spraying or dipping. Lower cost, but less durable and may degrade with wear.
3. Electrolytic antimicrobial treatment: Forms a dense antimicrobial oxide layer on the surface through electrolysis, offering stronger adhesion and better durability than standard coatings.
4. Nano-composite technology: Embedding nano-silver or nano-zinc oxide into the surface layer to enhance ion release efficiency.