Scratches on stainless steel sinks should be repaired according to depth, direction, and surface finish. Stainless steel needs at least 10.5% chromium to form a protective passive layer, while 304 stainless steel commonly contains 18–20% chromium and 8–12% nickel. This is why light surface scratches can often be improved, but deep dents or cuts may require professional evaluation.
Before polishing, wash the sink with mild detergent and warm water, then dry it fully. Remove grease, mineral marks, food residue, and chemical residue first. For light scratches, use a fine non-abrasive polishing pad or stainless steel cleaner. Always move along the original brushed grain. Do not rub in circles, use steel wool, or apply strong acid cleaners, because these may create uneven marks or leave iron particles on the surface.
Scratch control starts before the sink reaches the project site. A stainless steel sink manufacturer can manage material grade, sheet thickness, forming, welding, brushing, surface cleaning, protective film, inspection, and export packing. A trader usually works with finished stock, so batch traceability and surface consistency may be weaker. For bulk stainless steel sink supply, manufacturer control helps reduce transport friction, mixed finishes, and visible scratch complaints.
For OEM stainless steel sink and ODM stainless steel sink projects, scratch prevention should be included in early product development. We confirm sink size, bowl depth, installation type, drain position, surface finish, accessory packing, logo method, carton strength, care label, and export market compliance before mass production. For structure and finish reference, this Top Mount Stainless Steel Sink With Drainboard can help evaluate drainboard space, surface treatment options, installation matching, and kitchen workflow.
| Checkpoint | Control Purpose |
|---|---|
| Scratch depth | Confirms whether polishing is suitable |
| Grain direction | Keeps the surface visually consistent |
| Surface cleaning | Prevents secondary stains |
| Protective film | Reduces friction during shipment |
| Accessory packing | Avoids drain parts scratching the bowl |
| Final inspection | Controls visible defects before export |
A complete process includes sheet inspection, cutting, deep drawing, trimming, welding, grinding, polishing, cleaning, drainage testing, accessory checking, and final packing. Each step affects how well Custom Stainless Steel Sinks resist and recover from surface marks after installation.
Before repeat orders, check material standards used, sample finish, brushing consistency, protective film quality, 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 and protective packing, we help reduce scratch-related risks and support consistent long-term delivery.
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