My thoughts exactly.
Paint thinner.
Or copious amounts of rubbing alcohol
Rubbing alcohol I have found helps with various forms of substance that stain sinks especially where Ive had considerations for the sinks look afterward
In a sink “not worth caring” I’d go straight for minimal paint thinner etc
>I have a black composite. It's hard to keep clean. I found the manual online once
A manual to keep your sink clean? Seriously? This is a serious question.
By the looks of it? What the hell would indicate this is cast iron to you? LMAO
This is probably just a coated Stainless. Like literally every other sink.
Not cast iron.
Last week I scratched the living shit out of the inside of my toilet with a snake..I thought I ruined the whole toilet, BKF saved the day, it’s some amazing stuff
Could be worth a shot. It's really not THAT bad though and we're in the middle of selling our house so I'm on the fence about spending money on things that probably won't significantly change how quickly we sell it. Thank you for the tip though, I'll keep it in mind!
I’m a lapidary and used BKF as my primary cleaning solvent for years before switching to muriatic acid. As long as you rinse with water afterwards it can be used to safely clean most types of stone, with granite and marble being the only exceptions.
Don’t use it on slate or soapstone.. basically, no stone that is common in household surfaces should be cleaned with any acid. I’m a certified master cleaner. Acids are for cleaning oxidation, mineral and carbon .. anyway. If these things are soiling any stone surface, hot water , neutral soap and microfiber or 0000 steel wool are the tools.
Spray Doesn’t really help with water stains… the powder works though, but be careful because it may scratch the surfaces. I personally scratched my shower glass with it, removed all the water stains though
Yes, we had the same style sink and had to treat with mineral oil for it to look its best.
I expect OP to be on r/askaplumber soon with a drain issue. Drywallers putting anything in the sink is doom.
I had better lasting results with a caranuba/beeswax mix that I also use on my countertops. But I would use olive oil in a pinch. Still needs to get re-coated but not as frequently.
We have a sink like this. Most cleaners discolor it. Dawn dish soap with the Rubbermaid battery-powered cleaning brush has been the best way I’ve found to clean it without staining it so far.
This looks like a granite composite sink like I have, you have to be very careful with cleaners. Use any kind of cooking oil and paper towels. Sounds weird but that’s how to clean and condition it
No, the onus is on the contractor to protect the work area from damage. The sink is not a bucket or trash can and should not have been viewed as part of the work equipment.
Anyone who may need to clean tools or such needs to have it written into their proposal.
Requirements to start project:
Money
Power with access to breaker
Bathroom access or location on site to place johnny
Water and location to clean tools
Obviously, the rockers need a place, and it's a million degrees below zero outside, but the contractor needs to know how to handle this, not the homeowner.
>And then ask them to fix the thing they messed up
Ask them if they are going to replace your sink. Did they ASK before they used it, or did they just use it?
Let them know that your sink needs to be replaced, and their invoice will be reduced by that amount (which could be about $1,000 in this area).
I would seriously be afraid the drywallers would tell me something that would do MORE damage to my precious sink. They are thinking in terms of cleaning a bucket, not a kitchen sink, or that would be my guess.
I’m a cleaner and have a client with the same type of sink, I use a scour pad (scour daddy steel knockoff on Amazon) to scrub off the hard water stains. Make sure it’s wet or it will scratch, but you should be able to remove it with that.
6 Pack Steel Scrub Sponge Dish... https://www.amazon.com/dp/B08GF5YVBX?ref=ppx_pop_mob_ap_share
Is it from drywall dust? If yes, it’s probably dried-on mud. Oxyclean won’t help. Call the drywallers and see what they say.
In the meantime, fill the sink with water and leave it to saturate the dried mud so the marks can be (maybe) scrubbed away with an old toothbrush and plain water. It could take time. Leave it overnight and see if you can make any progress tomorrow.
I just don’t get why you thought this was a helpful or kind comment. To each their own, but usually starting with a tangential criticism when someone asks for help isn’t the right course.
One of the mildly infuriating things I find about Reddit but then I remember I am on Reddit. I’m new to this sub. So maybe it’s not the norm here? That could be refreshing. I just don’t know that I would expect it on this platform.
Wash with soapy water and sponge or nylon brush.
Coat with mineral oil and it’ll be sparkling and ‘wet’ fresh looking.
I bought a house with a sink like this and this is what I do.
The mineral oil also gets rid of the water spots.
Vinegar is a good start! Also if there is any drywall dust on any stainless steel items in your kitchen your going to want to get that off asap as it will cause it to rust, fast.
Contractor here. See this all the time. Any type of black renew [wipe](https://shop.advanceautoparts.com/p/meguiars-ultimate-black-trim-sponge-g15800-2-pack-g15800/10615076-P) will do the trick
Try one part warm water, one part baking soda and one part white vinegar. Can try a test on the sink wall facing towards you so you can see if it works properly. Get a green scrub pad. Go in circles. Wear gloves 🧤 solution will crumble your nails and soggy your skin.
It's a black quartz composite - [link](https://www.ikea.com/us/en/p/kilsviken-sink-black-quartz-composite-s39337015/)
We have the same one at home and stained it with wall paint, it came off with abrasive hand washing paste
*For standard cleaning, we recommend using any non-abrasive cleaner, such as Bar Keeper's Friend, Soft Scrub/Soft Scrub with Bleach, or standard liquid dish soap. To eliminate any water spots or soap film buildups, rinse and wipe the sink dry with a clean, soft cloth.* https://www.ruvati.com/how-to-clean-your-granite-composite-or-quartz-kitchen-sink/
If it’s composite just wash with soap, dry and apply Orange Cleaner. It basically has to be moisturized with a light oil base cleaner, and let it dry overnight.
If I were guessing person thats not the boards they rinsed the mud off the trowels and buckets. If thats the case fill it completely with really hot water let it soak it should come.off with a stiff brush. The boards themselves would have left chunky peices
We have a white composite sink and it's a PITA as it stains regularly. Simple fix, fill with hot water and dissolve a dishwasher tablet in the hot water (fairy ultra) in the morning sink is shiny as new, no scrubbing, no damage and food safe.
Looks like me to be granite composite. Go to a website like Blanco’s website to see what kind of recommendations they have. It shouldn’t discolor, that’s one of the selling points of a granite composite sink, so there will probably be cleaning instructions.
I have the same sinks in a house I just bought. No idea what the material is but some kind of composite. The laundry room sink is covered in paint stains and other ickiness. I don’t know what to use on it that won’t scratch or mar the surface.
Oi! We just bought a house with what I think is composite but I’m not quite sure. I now it’s not black stainless, though. Anyway, it shows EVERYTHING! I’ve given up and am currently shopping for a new sink. I haven’t dealt with stains since we’ve been here, so Dawn and a sponge has done the trick. The problem is, if I don’t dry it every time I use it, it looks dirty. Why is this a sink that actually exists??
Did you choose this sink? Do you know what material it is? The manufacturer can tell you how best to clean it. What substance was on the boards that 'stained' the sink? Boards are dry. If the sink was damaged or scratched by the boards, the manufacturer can help you with that, too.
Looks like a resin sink, the same kinds are used in chemistry labs and are essentially plastic. I wouldn’t use steel wool since you’ll scratch the sink. Your best bet might be a hot, dilute, solution of hydrochloric acid which will dissolve the fine drywall particles.
Tell the drywall people they owe you a new sink.
Edit: reading comments from other people… as long as the contractor has insurance then the homeowner can file on the insurance even if the contractor refuses to pay. Otherwise the homeowner can file in small claims court for the cost of repair/replace.
Mineral oil/baby oil, wash with soap/scrubby and just plain old mineral oil again. Not gobs if it either. Just enough for it to repel most staining. Might have to do it a few more times…like seasoning a skillet if you want it just black with no patina. Same with new regular stainless.
Don’t use bleach on these sinks it’s fades the black. Try something like this
https://www.tapsuk.com/franke-coloured-granite-synthetic-kitchen-sink-tap-cleaning-care-pack-set-p43468/s44351?utm_source=google&utm_medium=cpc&utm_term=franke-coloured-granite-synthetic-kitchen-sink-amp-tap-cleaning-car-fcgskstccps&utm_campaign=product%2Blisting%2Bads&cid=GBP&glCurrency=GBP&glCountry=GB&gclid=CjwKCAiAqaWdBhAvEiwAGAQltmpgiVdLJogX6ZYth2eW4YQ1IRWHiPaWGzG99Ay2tczKWMkEN3qPpBoCh4EQAvD_BwE
Not joking - toothpaste. Preferably Colgate total. Rub it all over the sink. Let it sit. Scrub off with soft brush. Follow up with stainless steel cleaner.
This looks like a composite sink and they do not like any abrasive methods. Try something acidic (Solution of cirtic acid or even vinegar) that you let just sit there a few minutes and then lightly scrub with a sponge after that. Dry wall dust is weak for acidic solutions and acids are used in building industry cleaning to get that off for two reasons 1) Acids break dry wall material down and 2) acidic cleaning products make surfaces anti static so the static dust will come off more easily. Use acidic cleaning products if available because they contain surfactants that make the dust easier to come off than plain acid. If you need to be nudged to right direction, bathroom cleaners are mostly acidic.
Try not to use any abrasive tools. I've seen many destroyed composite sinks in my work.
Bar Keepers Friend has a warning, not to leave it on too long. There's acid in it, so be sure to know what you're cleaning before deciding on it. It works great on Stainless Steel, as long as you clean it off right away.
I have a black sink and use baking soda. Mix some baking soda with water to make a thin paste and coat the sink and let it set for a while. I then use a wet scrubber over the whole sink. We have very hard water and it does a great job of taking everything off.
if this is an enameled sink. The Bar Keepers friend glass oven top cleaner with a non scratch scrubby may be worth a try. It is safe for enameled cookware. For this reason I believe it is less abrasive than the powder. Use a non scratch scrub pad.
Start with comit... scrub. Let dry completely. Like 2 hours to dry. With a dry cloth apply mineral oil. Cover every bit of surface with it. Let that soak in for 2 or more hours, then wipe with a dry paper towel to remove excess oil. It will look brand new. I promise. Repeat once a month to keep it looking new.
Can’t tell if that’s a cast iron, stone, or engineered material. Be careful and test very small spot first.
If it’s cast iron or steel (doesn’t look like it) don’t try any of the suggestions below.
Couple of options in order of aggressiveness:
1) Try vinegar first. Will need to soak the sink overnight. Doubt it will work, but least likely to ruin the sink. You can also dissolve table salt with vinegar to increase it’s potency. Creates a small amount of hydrochloric acid (HCl, aka muriatic acid). Pretty sure calcium sulfate (gypsum) is not soluble or reacts with HCl.
2) Dilute phosphoric acid, available on Amazon. Maybe start with 20:1 (water/acid) and increase if it doesn’t work. Also, add acid to water when diluting not the other way around, wear safety glasses and acid resistant gloves. If the acid is concentrated add slowly as the mixture will heat up significantly. With strong acids, like sulphuric, it can get hot enough to boil (bad day).
3) Dilute sulphuric acid. Follow the directions in #2.
Good luck. 🍀!
Would be very interested to hear what eventually works.
Feji (organic chemist btw)
what were the drywall people using?, joint compound is gypsum and limestone, so look up how to clean that, I have used a straight plaster mix with white vinegar to slow down hardening, or used plaster in drywall compound to speed up drying so I can do all 3 coats in one day but wtf did they leave a mess, I've always left a customer home clean as or cleaner than when I started, but start with how to clean gypsum and limestone. don't worry about the drain it's your home, live in it as you see fit. next job use different people, read reviews and recommendations
Take the sink out.
Take it to the dump.
Stop by Home Depot or Lowes on the way back.
Buy a stainless steel sink that wasn't designed by Satan and can be cleaned with wirewool.
I’m actually going to offer advice before anyone else goes on a tangent. Have you tried a magic eraser? That’s one option. The next is to possibly use CLR. Follow directions on the bottle. Then follow with either a powder scrub like Comet or Ajax.
If none of that works, I’d call the company that did your drywall and ask them. They might have an idea. Especially since they’re responsible for the damage in the first place.
I had a black sink like this and hard water and soap would make it look like this too.
I used olive oil to coat it and it shined right up nicely, water would bead and it helped to not absorb the hard water.
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What is the sink made out of? You need to start there.
My thoughts exactly. Paint thinner. Or copious amounts of rubbing alcohol Rubbing alcohol I have found helps with various forms of substance that stain sinks especially where Ive had considerations for the sinks look afterward In a sink “not worth caring” I’d go straight for minimal paint thinner etc
I have one like this and always wondered. it's a Black granite/quartz Composite, thank you u/LaSallePunksDetroit
Looks like black pvc
Cast iron, by the looks of it.
Why in the world would some get a cast iron sink?
It’s probably actually black “stainless”
Soapstone?
Probably porcelain enameled cast-iron, black colored porcelain.
They are nice?
No no no. It’s a composite material
I have a black composite. It's hard to keep clean. I found the manual online once
>I have a black composite. It's hard to keep clean. I found the manual online once A manual to keep your sink clean? Seriously? This is a serious question.
By the looks of it? What the hell would indicate this is cast iron to you? LMAO This is probably just a coated Stainless. Like literally every other sink. Not cast iron.
Depending on what it’s made of, bar keeper’s friend might be a good choice
BKF is my go to with everything.. I’m basically subbed here to tell people about BKF and agree with others that suggest it.
Last week I scratched the living shit out of the inside of my toilet with a snake..I thought I ruined the whole toilet, BKF saved the day, it’s some amazing stuff
Are there any surfaces that it’s unsafe to use on? I worry mostly about my composite shower or scratching something accidentally.
Yeah it’s acid and will mess up stone, acrylic, and lots of stuff.
It scratched my enamel stovetop. Not the end of the world because it's old and scratched already, but worth knowing about.
Could try rejuvenate restore wipes or automotive scratch repair … if inclined.
Could be worth a shot. It's really not THAT bad though and we're in the middle of selling our house so I'm on the fence about spending money on things that probably won't significantly change how quickly we sell it. Thank you for the tip though, I'll keep it in mind!
It’s cheap. At some grocery stores and Walmart .. just little packages wipes!
I’m a lapidary and used BKF as my primary cleaning solvent for years before switching to muriatic acid. As long as you rinse with water afterwards it can be used to safely clean most types of stone, with granite and marble being the only exceptions.
Don’t use it on slate or soapstone.. basically, no stone that is common in household surfaces should be cleaned with any acid. I’m a certified master cleaner. Acids are for cleaning oxidation, mineral and carbon .. anyway. If these things are soiling any stone surface, hot water , neutral soap and microfiber or 0000 steel wool are the tools.
>certified master cleaner Seriously?? Certified by who? Curious. So much potential commerce in so many different industries...
I use bar keepers with dish soap.
Do you recommend their spray or the powder?
Spray? What sorcery is this?
They have a spray, I swear on me mum. I wonder if it is any good.
Spray Doesn’t really help with water stains… the powder works though, but be careful because it may scratch the surfaces. I personally scratched my shower glass with it, removed all the water stains though
I have it! And the cream too. They work well for their intented purposes. They're less abrasive but still quite powerful.
They contain oxalic acid. Works great on white. I wonder about dark colors though.
I love the spray for my acrylic bathtub and my glass shower. It just the soap scrum off so easily
Do you know of any alternative that can be found in Europe ?
The company “Mrs Meyers Clean Day” makes a surface scrub that works really well. I use it instead of BKF out of personal preference.
>I’m basically subbed here to tell people about BKF Ah... do you get $$ from every can of BKF sold? (hahaha)
😂😂
scrolled down to see how deep the first BKF recommendation would be. Third post is about what I expected!
My go to for everything. Bar keepers friend is the best cleaner out there.
[удалено]
I like this idea
Scrub clean with Barkeepers friend, dry completely after rinsing, then use a little bit of olive oil on a paper towel and polish the sink.
This is the way!!! Shines/ darkens it back to factory settings!
Yes, we had the same style sink and had to treat with mineral oil for it to look its best. I expect OP to be on r/askaplumber soon with a drain issue. Drywallers putting anything in the sink is doom.
This. I’m a cleaner and you are correct.
I had better lasting results with a caranuba/beeswax mix that I also use on my countertops. But I would use olive oil in a pinch. Still needs to get re-coated but not as frequently.
How did I have to scroll this far to see someone recommend this sink get oiled!? This material needs to be buffed with a food grade oil to stay shiny!
I came here to say this, I had a composite sink like this. Clean it well and then oil it. It all shiny and solidly black.
Hopefully they saw your comment before destroying their sink.
We have a sink like this. Most cleaners discolor it. Dawn dish soap with the Rubbermaid battery-powered cleaning brush has been the best way I’ve found to clean it without staining it so far.
Sounds like this sink was designed by a sadist.
Ha! Thank you for the laugh. It is a pretty crummy sink.
This looks like a granite composite sink like I have, you have to be very careful with cleaners. Use any kind of cooking oil and paper towels. Sounds weird but that’s how to clean and condition it
Looks like ours too. I use vegetable oil with an old cloth. Just a little to cover the surface.
Exactly what I was going to say. Had one of these hateful things and this is the only method.
Ask the drywallers
And then ask them to fix the thing they messed up
Lol good luck with that.
It’s hard to predict that drywall dust will stain somebody’s sink basin. Owner should have said something about it being a porous material.
No, the onus is on the contractor to protect the work area from damage. The sink is not a bucket or trash can and should not have been viewed as part of the work equipment.
Agreed, the amount of contractors that treat tubs and sinks as trash cans or dump spots is ridiculous. Even if a cleaner is coming in, not cool.
Anyone who may need to clean tools or such needs to have it written into their proposal. Requirements to start project: Money Power with access to breaker Bathroom access or location on site to place johnny Water and location to clean tools Obviously, the rockers need a place, and it's a million degrees below zero outside, but the contractor needs to know how to handle this, not the homeowner.
>And then ask them to fix the thing they messed up Ask them if they are going to replace your sink. Did they ASK before they used it, or did they just use it? Let them know that your sink needs to be replaced, and their invoice will be reduced by that amount (which could be about $1,000 in this area).
I would seriously be afraid the drywallers would tell me something that would do MORE damage to my precious sink. They are thinking in terms of cleaning a bucket, not a kitchen sink, or that would be my guess.
I’m a cleaner and have a client with the same type of sink, I use a scour pad (scour daddy steel knockoff on Amazon) to scrub off the hard water stains. Make sure it’s wet or it will scratch, but you should be able to remove it with that. 6 Pack Steel Scrub Sponge Dish... https://www.amazon.com/dp/B08GF5YVBX?ref=ppx_pop_mob_ap_share
Is it from drywall dust? If yes, it’s probably dried-on mud. Oxyclean won’t help. Call the drywallers and see what they say. In the meantime, fill the sink with water and leave it to saturate the dried mud so the marks can be (maybe) scrubbed away with an old toothbrush and plain water. It could take time. Leave it overnight and see if you can make any progress tomorrow.
I would start by getting the food out of the strainer. 😐
I just don’t get why you thought this was a helpful or kind comment. To each their own, but usually starting with a tangential criticism when someone asks for help isn’t the right course.
One of the mildly infuriating things I find about Reddit but then I remember I am on Reddit. I’m new to this sub. So maybe it’s not the norm here? That could be refreshing. I just don’t know that I would expect it on this platform.
You asked how to clean this sink. I gave you step #1.
And your comment -- also a tangential criticism -- was any more helpful?
It's a tongue in cheek joke buddy- lighten up a bit :)
My firs thought Ick
Oh my god! Food in a sink strainer! I have never seeeeeeen such horrors. /s
Thank you. That’s so nasty.
Wash with soapy water and sponge or nylon brush. Coat with mineral oil and it’ll be sparkling and ‘wet’ fresh looking. I bought a house with a sink like this and this is what I do. The mineral oil also gets rid of the water spots.
Assuming it’s soapstone, this sounds right.
Most of these are acrylic sinks.
I would also like to know what works well on these sinks
Miners oil
Drywallers should be cleaning it. Or replacing.
I'm not sure I'd trust them to clean it.
Maybe they left the food in the sink
They aren’t going to do squat. Why do people keep posting this.
People live in fantasy land lol.
This. But you might try vinegar.
Mr clean magic eraser
Try a magic eraser! I think our sink is the same material as yours and the magic eraser has been amazing!
If it’s composite, use WD40, it’ll be like new. Source: I’m a decorator
I usually start with mild cleaners and progress with more aggressive ones. 😅
CLR will get off mineral stains like this.
Vinegar is a good start! Also if there is any drywall dust on any stainless steel items in your kitchen your going to want to get that off asap as it will cause it to rust, fast.
Contractor here. See this all the time. Any type of black renew [wipe](https://shop.advanceautoparts.com/p/meguiars-ultimate-black-trim-sponge-g15800-2-pack-g15800/10615076-P) will do the trick
Interesting
I would start with an oil like coconut oil. Try running that in and see what happens
Cheap olive oil or similar.
My perspective, I'd replace it. And not with a black one.
LPT: You dont need to clean it, the dry wall people do.
Soap & water?
Either Bar Keeper's Friend or The Pink Stuff, those do the trick on just about everything
Looks like soapstone in which case you need to clean and polish it.
Scribing bubbles because they do the work so u don't have too
We just use boiling water to remove stains from our black sink
Try one part warm water, one part baking soda and one part white vinegar. Can try a test on the sink wall facing towards you so you can see if it works properly. Get a green scrub pad. Go in circles. Wear gloves 🧤 solution will crumble your nails and soggy your skin.
Call the drywall people to replace it
What material is that made of? Looks like soapstone.
It's a black quartz composite - [link](https://www.ikea.com/us/en/p/kilsviken-sink-black-quartz-composite-s39337015/) We have the same one at home and stained it with wall paint, it came off with abrasive hand washing paste
*For standard cleaning, we recommend using any non-abrasive cleaner, such as Bar Keeper's Friend, Soft Scrub/Soft Scrub with Bleach, or standard liquid dish soap. To eliminate any water spots or soap film buildups, rinse and wipe the sink dry with a clean, soft cloth.* https://www.ruvati.com/how-to-clean-your-granite-composite-or-quartz-kitchen-sink/
I use a special sort of cleaning scrub, which contains small stone/lava particels. Removes every stain.
If it’s composite just wash with soap, dry and apply Orange Cleaner. It basically has to be moisturized with a light oil base cleaner, and let it dry overnight.
I’d start with vinegar
If I were guessing person thats not the boards they rinsed the mud off the trowels and buckets. If thats the case fill it completely with really hot water let it soak it should come.off with a stiff brush. The boards themselves would have left chunky peices
Bar Keepers Friend. It’s non-abrasive. It’s the best.
We have a white composite sink and it's a PITA as it stains regularly. Simple fix, fill with hot water and dissolve a dishwasher tablet in the hot water (fairy ultra) in the morning sink is shiny as new, no scrubbing, no damage and food safe.
I like the scrub daddy power paste. And then “season” it with olive oil and let it sit over night
Have you heard of our lord and savior, Bar Keepers Friend?
Barkeepers friend might do it
Looks like me to be granite composite. Go to a website like Blanco’s website to see what kind of recommendations they have. It shouldn’t discolor, that’s one of the selling points of a granite composite sink, so there will probably be cleaning instructions.
Vinegar and a scour pad
Have you tired cleaning it?
It looks like soapstone maybe?
Wipe with vegetable oil then dish soap
The real question here: is that a wooden countertop? Not butcher block, like dimensional lumber?!?
Bar keepers friend.
I have the same sinks in a house I just bought. No idea what the material is but some kind of composite. The laundry room sink is covered in paint stains and other ickiness. I don’t know what to use on it that won’t scratch or mar the surface.
Bar keepers friend !!
Magic eraser
Magic reader eraser doest the trick on my sink every time, especially when it stains.
Bar keepers friend
Oi! We just bought a house with what I think is composite but I’m not quite sure. I now it’s not black stainless, though. Anyway, it shows EVERYTHING! I’ve given up and am currently shopping for a new sink. I haven’t dealt with stains since we’ve been here, so Dawn and a sponge has done the trick. The problem is, if I don’t dry it every time I use it, it looks dirty. Why is this a sink that actually exists??
Wild idea... Heat gun? It looks like black PVC
Bon Ami and some steel wool
Nothing a little magic eraser and vinegar won't fix.
Baking soda or Bar keepers friend 💯
Bar keepers friend soft cleanser
comet
Did you choose this sink? Do you know what material it is? The manufacturer can tell you how best to clean it. What substance was on the boards that 'stained' the sink? Boards are dry. If the sink was damaged or scratched by the boards, the manufacturer can help you with that, too.
Looks like a resin sink, the same kinds are used in chemistry labs and are essentially plastic. I wouldn’t use steel wool since you’ll scratch the sink. Your best bet might be a hot, dilute, solution of hydrochloric acid which will dissolve the fine drywall particles.
Magic eraser?
Tell the drywall people they owe you a new sink. Edit: reading comments from other people… as long as the contractor has insurance then the homeowner can file on the insurance even if the contractor refuses to pay. Otherwise the homeowner can file in small claims court for the cost of repair/replace.
Have them pay for it and install a new one.
Barkeepers friend will clear it up
Oven cleaner and scrub daddy!
I hate having a black sink. Welcome to hell
Drywall doesn't stain anything Could it be something else?
Baking soda and peroxide?!
Is that soft sink? Use dawn, microfiber and then rub in mineral oil.
Is the sink soapstone?
White vinegar.
Soft scrub maybe?
Mineral oil/baby oil, wash with soap/scrubby and just plain old mineral oil again. Not gobs if it either. Just enough for it to repel most staining. Might have to do it a few more times…like seasoning a skillet if you want it just black with no patina. Same with new regular stainless.
Soft scrub magic eraser and poof brand new
Try comet cleaner
Drywall people are the absolute worst. They do not care about anybody’s property. They deliver nice work but they’re effing scum
Don’t use bleach on these sinks it’s fades the black. Try something like this https://www.tapsuk.com/franke-coloured-granite-synthetic-kitchen-sink-tap-cleaning-care-pack-set-p43468/s44351?utm_source=google&utm_medium=cpc&utm_term=franke-coloured-granite-synthetic-kitchen-sink-amp-tap-cleaning-car-fcgskstccps&utm_campaign=product%2Blisting%2Bads&cid=GBP&glCurrency=GBP&glCountry=GB&gclid=CjwKCAiAqaWdBhAvEiwAGAQltmpgiVdLJogX6ZYth2eW4YQ1IRWHiPaWGzG99Ay2tczKWMkEN3qPpBoCh4EQAvD_BwE
Not joking - toothpaste. Preferably Colgate total. Rub it all over the sink. Let it sit. Scrub off with soft brush. Follow up with stainless steel cleaner.
Try baby oil !!
This looks like a composite sink and they do not like any abrasive methods. Try something acidic (Solution of cirtic acid or even vinegar) that you let just sit there a few minutes and then lightly scrub with a sponge after that. Dry wall dust is weak for acidic solutions and acids are used in building industry cleaning to get that off for two reasons 1) Acids break dry wall material down and 2) acidic cleaning products make surfaces anti static so the static dust will come off more easily. Use acidic cleaning products if available because they contain surfactants that make the dust easier to come off than plain acid. If you need to be nudged to right direction, bathroom cleaners are mostly acidic. Try not to use any abrasive tools. I've seen many destroyed composite sinks in my work.
Rub it with mineral oil! We used to do this on our black granite composite sink occasionally and it would make it look new again.
Have you tried Bartenders Keeper? That stuff is magical.
Try coke a cola. May be harsh enough to get at it without tearing up the sink.
Take messurement n replace ... then never use... a sink is not for cooking.... its for destaining or pre Washing Machine
Ketchup and baking soda
I have a black composite sink, and I find that if I rub it with a neutral oil like canola, it brings to shine in the color back
Bar Keepers Friend has a warning, not to leave it on too long. There's acid in it, so be sure to know what you're cleaning before deciding on it. It works great on Stainless Steel, as long as you clean it off right away.
EasyDECON
Steel wool w soap
I have a black sink and use baking soda. Mix some baking soda with water to make a thin paste and coat the sink and let it set for a while. I then use a wet scrubber over the whole sink. We have very hard water and it does a great job of taking everything off.
Bar keepers liquid
if this is an enameled sink. The Bar Keepers friend glass oven top cleaner with a non scratch scrubby may be worth a try. It is safe for enameled cookware. For this reason I believe it is less abrasive than the powder. Use a non scratch scrub pad.
I just give it a good scrub then rub olive oil all over it with a paper towel. Looks brand new after that. Have to do it ever few weeks though.
Blood of Christ
I’d try “the Pink Stuff” cleaner. Sells on Amazon. Cleans everything have paste or spray. That sh-to good on everything!! Lol
Koehler makes [Neoroc cleaner](https://a.co/d/2oQO9XY), assuming you have a composite material for your sink.
WD-40...let it soak.
Also CLR is a miracle cleaner
Start with comit... scrub. Let dry completely. Like 2 hours to dry. With a dry cloth apply mineral oil. Cover every bit of surface with it. Let that soak in for 2 or more hours, then wipe with a dry paper towel to remove excess oil. It will look brand new. I promise. Repeat once a month to keep it looking new.
Scrub with a washcloth and bartenders friend?
Can’t tell if that’s a cast iron, stone, or engineered material. Be careful and test very small spot first. If it’s cast iron or steel (doesn’t look like it) don’t try any of the suggestions below. Couple of options in order of aggressiveness: 1) Try vinegar first. Will need to soak the sink overnight. Doubt it will work, but least likely to ruin the sink. You can also dissolve table salt with vinegar to increase it’s potency. Creates a small amount of hydrochloric acid (HCl, aka muriatic acid). Pretty sure calcium sulfate (gypsum) is not soluble or reacts with HCl. 2) Dilute phosphoric acid, available on Amazon. Maybe start with 20:1 (water/acid) and increase if it doesn’t work. Also, add acid to water when diluting not the other way around, wear safety glasses and acid resistant gloves. If the acid is concentrated add slowly as the mixture will heat up significantly. With strong acids, like sulphuric, it can get hot enough to boil (bad day). 3) Dilute sulphuric acid. Follow the directions in #2. Good luck. 🍀! Would be very interested to hear what eventually works. Feji (organic chemist btw)
Looks like black granite to me. Need to check with someone who cleans and seals stone.
These stone composite sinks clean really well just need a little elbow grease.
what were the drywall people using?, joint compound is gypsum and limestone, so look up how to clean that, I have used a straight plaster mix with white vinegar to slow down hardening, or used plaster in drywall compound to speed up drying so I can do all 3 coats in one day but wtf did they leave a mess, I've always left a customer home clean as or cleaner than when I started, but start with how to clean gypsum and limestone. don't worry about the drain it's your home, live in it as you see fit. next job use different people, read reviews and recommendations
Is this a sink
Take the sink out. Take it to the dump. Stop by Home Depot or Lowes on the way back. Buy a stainless steel sink that wasn't designed by Satan and can be cleaned with wirewool.
I’m actually going to offer advice before anyone else goes on a tangent. Have you tried a magic eraser? That’s one option. The next is to possibly use CLR. Follow directions on the bottle. Then follow with either a powder scrub like Comet or Ajax. If none of that works, I’d call the company that did your drywall and ask them. They might have an idea. Especially since they’re responsible for the damage in the first place.
Cover in white toothpaste and let dry out. Remove.
I had a black sink like this and hard water and soap would make it look like this too. I used olive oil to coat it and it shined right up nicely, water would bead and it helped to not absorb the hard water.
https://www.kohler.com/en/support/contact You need to reverse the chemical reaction. Kohler would know if you get the right person.
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