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TRUE RESIDENTIAL
®
TEC_TM_073 | REV. D | EN
12/03/2021Page 48 of 56
STAINLESS STEEL EQUIPMENT CARE AND CLEANING
8 TIPS TO HELP PREVENT RUST ON
STAINLESS STEEL
Maintain the Cleanliness of Your Equipment – Avoid
build-up of hard stains by cleaning frequently. Use
cleaners at the recommended strength (alkaline
chlorinated or non-chloride).
Use the Correct Cleaning Tools – Use non-abrasive
tools when cleaning your stainless steel products. The
stainless steel’s passive layer will not be harmed by
soft cloths and plastic scouring pads.
Clean Along Polishing Lines – Polishing lines ("grain")
are visible on some stainless steels. Always scrub
parallel to polishing lines when visible. Use a plastic
scouring pad or soft cloth when you cannot see the
grain.
Use Alkaline, Alkaline-Chlorinated or Non-Chloride
Cleaners – While many traditional cleaners are
loaded with chlorides, the industry is providing an
ever increasing choice of non-chloride cleaners. If
you are not sure of your cleaner’s chloride content,
contact your cleaner supplier. If they tell you that your
present cleaner contains chlorides, ask if they have an
alternative. Avoid cleaners containing quaternary salts,
as they can attack stainless steel, causing pitting and
rusting.
Rinse – When using chlorinated cleaners, you must
rinse and wipe dry immediately. It is better to wipe
standing cleaning agents and water as soon as
possible. Allow the stainless steel equipment to air dry.
Oxygen helps maintain the passivity film on stainless
steel.
Never Use Hydrochloric Acid (Muriatic Acid) on Stainless
Steel – Even diluted, hydrochloric acid can cause
corrosion, pitting and stress corrosion cracking of
stainless steel.
Water Treatment – To reduce deposits, soften hard
water when possible. Installation of certain filters can
remove corrosive and distasteful elements. Salts in a
properly maintained water softener can also be to your
advantage. Contact a treatment specialist if you are not
sure of the proper water treatment.
Regularly Restore & Passivate Stainless Steel – Stainless
steel gets its stainless properties from the protective
chromium oxides on its surface. If these oxides are
removed by scouring, or by reaction with harmful
chemicals, then the iron in the steel is exposed and
can begin to oxidize, or rust. Passivation is a chemical
process that removes free iron and other contaminants
from the surface of stainless steel, allowing the
protective chromium oxides to re-form.
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