Stainless steel is corrosion-resistant, not completely rust-proof. Chlorides, iron dust, standing water, harsh cleaners, and poor welding can damage its protective surface layer. Rust prevention therefore begins with material selection and factory control.
For kitchen sink projects, 304 stainless steel provides a practical balance of formability and corrosion resistance. ASTM A240 defines chemical requirements for stainless steel sheet, while EN 10088-2 covers delivery conditions for corrosion-resistant sheet and strip. Buyers should confirm the grade, thickness, mill certificate, and finish before production.
A stainless steel sink manufacturer should keep carbon-steel tools and grinding dust away from sink surfaces. After forming and welding, seams must be cleaned and inspected for embedded iron, scratches, discoloration, and poor drainage. Quality control checkpoints should include material verification, dimensional inspection, weld review, water testing, surface checks, and dry packing.
This is a key difference between a manufacturer and a trader. A manufacturer can trace materials, develop tooling, adjust bowl depth and structure, approve samples, and solve issues before bulk supply. A trader normally has less direct control over fabrication.
Use mild detergent and a soft cloth, then rinse and dry the sink. Avoid steel wool, carbon-steel brushes, bleach, strong chloride cleaners, and prolonged contact with salty liquids. Remove wet tools, metal cans, and food residue promptly.
For OEM and ODM projects, the sourcing checklist should cover material standards, thickness, finish, drainage slope, welding method, accessories, packaging, inspection level, labeling, and export compliance.
SHUNHAN supports product design, structural development, OEM and ODM customization, sampling, quality inspection, and bulk production. This one-stop process helps maintain consistent specifications through export delivery.
