Scratches in stainless steel sink surfaces should be repaired according to depth and grain direction. Stainless steel contains at least 10.5% chromium, which forms a protective chromium oxide layer on the surface. When the surface is lightly scratched, this passive layer can regenerate in contact with oxygen and water. 304 stainless steel, commonly used for kitchen sinks, contains around 18% chromium and at least 8% nickel, making it suitable for daily washing areas, commercial kitchens, and project supply.
Before repairing scratches, clean the sink with warm water and mild detergent. Remove grease, food residue, water marks, and cleaning chemicals, then dry the surface completely. For fine scratches, use a non-abrasive stainless steel cleaner or fine polishing pad. 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.
Scratch problems often start before installation. A stainless steel sink manufacturer controls material grade, sheet thickness, forming, welding, polishing, cleaning, inspection, protective film, and export packing. A trader usually supplies finished stock, so batch traceability and surface consistency may be harder to control. For bulk stainless steel sink supply, factory control helps reduce visible scratch complaints, packing friction, and uneven brushing.
For OEM stainless steel sink and ODM stainless steel sink projects, scratch prevention should be planned before mass production. We confirm sink size, bowl depth, installation type, surface finish, drain position, logo method, accessory packing, carton strength, care label, and export market compliance. For structure and finish reference, this Top Mount Stainless Steel Sink With Drainboard can help evaluate drainage area, working space, surface treatment, and installation matching.
| Checkpoint | Control Value |
|---|---|
| Scratch depth | Decides polishing method |
| Grain direction | Keeps finish consistent |
| Surface cleanliness | Prevents secondary marks |
| Welding area | Avoids over-polishing edges |
| Protective film | Reduces shipping friction |
| Final inspection | Controls visible defects |
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 easy a custom stainless steel sink is to maintain 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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