what causes these rust at the bottom of the kitchen sink ? How can I prevent this ?

what causes these rust at the bottom of the kitchen sink ? How can I prevent this ?

Hi,

It could be cause by acid cleaning after the house renovation.

Hi,

It could be cause by acid cleaning after the house renovation.

omg

you sure ? caus I am so going to find my contractor and scold him...lol

jkin

anyways to prevent this from happening again ?

omg

you sure ? caus I am so going to find my contractor and scold him...lol

jkin

anyways to prevent this from happening again ?

Hi,

I got similar rust on my toilet cupboard hitch. Then my contractor apologies to me, he said the acid cleaning causes it.

Hehe.. u can check with your contractor.

omg

you sure ? caus I am so going to find my contractor and scold him...lol

jkin

anyways to prevent this from happening again ?

Sure, caused by acid washing. Prevent metallic stuff contact wwith acid. Use "brasso" to rub & clean.

Edited May 23, 201016 yr by bepgof

The sink don't look like stainless steel material.

It is also not likely the cause of acid on s/s.

In industrial, chemical is use to clean s/s and etching the s/s to a desire print like those panel mainly seen in lift.

What causes the rust on the s/s sink is normally the quality of the s/s.

The quality of Japanese product cost more and better than Thailand and Finland etc.

Sure, caused by acid washing. Prevent metallic stuff contact wwith acid. Use "brasso" to rub & clean.

Ok... but is it effective in preventing it from forming again ?

Hi,

I got similar rust on my toilet cupboard hitch. Then my contractor apologies to me, he said the acid cleaning causes it.

Hehe.. u can check with your contractor.

If it is really cause by acid washing...I really will make a call to my contractor

Btw, how you solve the problem ? does it come back again after wiping ?

upzzzzzzzzzzzzzzzzzz

The sink don't look like stainless steel material.

It is also not likely the cause of acid on s/s.

In industrial, chemical is use to clean s/s and etching the s/s to a desire print like those panel mainly seen in lift.

What causes the rust on the s/s sink is normally the quality of the s/s.

The quality of Japanese product cost more and better than Thailand and Finland etc.

haha. why not you try bleach on s/s item and tell me that it won't rust?

If it is really cause by acid washing...I really will make a call to my contractor

Btw, how you solve the problem ? does it come back again after wiping ?

you can try using autosol. I believe it might come back because your coating has been damaged.

perhaps having a coating of oil could delay it.

haha. why not you try bleach on s/s item and tell me that it won't rust?

ehh....dude, S/S is almost rustproof against moisture, not chemical leh. Bleach contains etching agents that act like diluted acid. So if u put bleach and S/S together, obviously the S/S will tarnish sooner or later and once the outer layer of protection has been etched away, the underlying steel will surely rust.

besides, gladyslim is not saying tt S/S will never rust. only saying the quality of S/S frm different makers are different. i can tell u 18/10 S/S frm reputable European and American makers are almost rust-proof, but 18/10 S/S frm a run-of-the-mill China maker will rust within 12 months of usage, if not sooner. my personal experience frm my previous job in the marine industry, China S/S starts to rust in less than 6 mths when exposed to the harsh marine environment. Worse part is it's actually labelled 18/8 S/S, which is the most rust-resistant grade of S/S.

haha. why not you try bleach on s/s item and tell me that it won't rust?

Laugh later

If the s/s is good quality type like 304, use of bleach won't cause that kind of rust.

You should try and see it for yourself.

Come back to me if it rust, I'll teach you how to polish it; in BA, hairline and non- directional finishing provided you have the random sander.

Laugh later

If the s/s is good quality type like 304, use of bleach won't cause that kind of rust.

You should try and see it for yourself.

Come back to me if it rust, I'll teach you how to polish it; in BA, hairline and non- directional finishing provided you have the random sander.

are you sure that usage of bleach won't cause rust? what if it's due to the vapor?

Stainless steel, aluminum, brass and bronze does not have a layer of protective coating as in galvanise sheet and EG plate.

It can be cut, weld, grind and polish (except aluminum) to its original condition.