Scratches on stainless steel sink surfaces should be repaired according to scratch depth, brushing direction, and surface finish. Stainless steel contains at least 10.5% chromium, which helps form a protective passive film. 304 stainless steel is often used for kitchen sink production because it contains about 18–20% chromium and 8–12% nickel, supporting corrosion resistance and stable forming for daily kitchen use.
Before repair, clean the sink with warm water and mild detergent, then dry the surface fully. For light scratches, use a fine non-abrasive polishing pad or stainless steel cleaner. Move along the original grain direction instead of rubbing in circles. Do not use steel wool, rough sandpaper, bleach, or strong acid cleaners, because they may create uneven marks or leave iron particles that can later look like rust.
Scratch problems are not always caused by use after installation. A stainless steel sink manufacturer can control material grade, sheet thickness, deep drawing, welding, brushing, cleaning, protective film, inspection, and export packing. A trader usually works with finished stock, so surface consistency and batch traceability may be harder to manage. For bulk stainless steel sink supply, factory control helps reduce visible scratches, carton friction, and mixed-finish problems.
For OEM stainless steel sink and ODM stainless steel sink projects, scratch control should be planned before mass production. We confirm sink size, bowl depth, installation type, surface finish, drain position, accessory packing, logo method, protective film, carton design, and export market compliance. For structure and finish reference, this Top Mount Stainless Steel Sink With Drainboard can help evaluate workspace layout, drainboard area, surface treatment options, and project installation matching.
| Checkpoint | Control Purpose |
|---|---|
| Scratch depth | Decides whether polishing is enough |
| Grain direction | Keeps the finish visually consistent |
| Surface cleaning | Prevents secondary stains |
| Welding edge | Avoids over-polishing weak areas |
| Protective film | Reduces friction during transport |
| Final inspection | Controls visible marks before packing |
A complete manufacturing process includes sheet inspection, cutting, deep drawing, trimming, welding, grinding, polishing, cleaning, drainage testing, accessory checking, and final packing. Each step affects how easily a custom stainless steel sink can be maintained after installation.
Before placing repeat orders, check material standards used, sample finish, brushing consistency, accessory separation, carton strength, labeling, installation guide, cleaning instructions, and export documents. SHUNHAN focuses on stainless steel sink manufacturing, Custom Stainless Steel Sinks, OEM and ODM support, and stable project supply. With controlled polishing, protective packing, and clear surface standards, we help reduce scratch-related risks and support consistent long-term delivery.
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