Stainless Steel Disclaimer
Stainless steel is a durable chromium-nickel alloy prized for its corrosion resistance, but it is not stain-proof or rust-proof. Environmental exposure, surface contamination, and normal wear can still cause staining, discoloration, or corrosion over time, regardless of grade or finish.
Applies to: All Inline Design 304 and 316 stainless steel railing, posts, hardware, and fabricated components.
No Guarantee Against Rust, Staining, or Corrosion
Inline Design does not guarantee that satin, brushed, or polished stainless steel hardware will remain free of rust, staining, or corrosion for the lifetime of the product. Stainless steel resists corrosion far better than ordinary steel, but "stainless" does not mean "stain-proof." Depending on the environment, contamination, grade, and finish, surface staining or corrosion can still develop.
As a preventative measure, we strongly recommend routine cleaning and periodic maintenance, as outlined in our Stainless Steel Care Guide, to help preserve the factory finish for years to come.
What Can Cause Staining or Corrosion
Coastal & Salt Air Exposure
Proximity to the ocean or other large bodies of saltwater is one of the biggest contributing factors to corrosion.
Chlorides & De-Icing Salts
Regular contact with chloride salts, pool chemicals, or road salt can discolor or corrode the surface.
Contact With Rusting Metals
Touching or being installed near iron, carbon steel, or other rusting metals can transfer contamination onto stainless steel.
Fabrication Residue
Cutting, grinding, or welding equipment can leave small metal deposits behind that rust if not properly removed and passivated.
Even AISI 316 stainless steel, the grade most resistant to chlorides, is not immune to these conditions — it simply resists them longer than AISI 304.
Grade and Finish Both Affect Corrosion Resistance
Material grade is only part of the picture. The surface finish — how the stainless steel was ground or polished — plays just as large a role in how well a given piece resists corrosion. A mirror-polished surface is smoother at the microscopic level and sheds contaminants more easily, while a satin or brushed finish has fine directional grain lines that are inherently more porous and can hold onto moisture, salts, and residue more readily.
Inline Design's standard architectural hardware is satin-finished for its appearance and value. Customers in coastal or high-corrosion environments who want maximum protection may choose to polish the surface after installation, or maintain a more frequent cleaning schedule; see the Care Guide for grade and finish recommendations specific to your environment.
Your Responsibility as the Owner or Installer
Routine Cleaning
Rinse and clean the railing regularly, more often in coastal, poolside, or industrial settings.
Prompt Treatment
Address staining, tea staining, or discoloration as soon as it's noticed, before it develops into pitting.
Correct Products & Tools
Use only stainless-steel-safe cleaners and tools; avoid steel wool, bleach, mineral acids, and coarse abrasives.
Passivation When Needed
Passivate after fabrication, welding, or corrosion treatment, and allow the full 48-hour cure before sealing or polishing.
Limitation of Liability
This Page Is Not a Warranty
Inline Design cannot guarantee that any stainless steel product, hardware, or fabricated component will remain permanently free of rust, staining, discoloration, or corrosion, regardless of grade, finish, or environment. Routine cleaning and maintenance are the responsibility of the owner or installer.
Always test cleaning, polishing, or passivating products on a small, inconspicuous area first, and follow the manufacturer's instructions for any product used on the stainless steel surface.
Need Help Choosing or Maintaining Your Railing?
See our full Stainless Steel Care Guide for cleaning steps, passivation instructions, and grade/finish guidance, or contact our sales team with questions about your specific environment.
Email our sales team