Easy How To Replace the Silicone on an Undercounter Sink 

I hope you see this comment as your video here was posted over a year ago. As someone who IS NOT handy with anything AT ALL!!! I wanted to give you a sincere thank you. Although I know replacing the silicon around my kitchen sink would not qualify as a “ difficult task “ virtually all such tasks are usually difficult for me. I followed this video step by step and the job came out perfect😁. Wow, little Ol me, I did it😊 Thanks so much!

You're absolutely right. That gunk is disgusting ! What a great step by step video. I literally got much of the silicon out in a long strand as you demonstrated. And it only took about 5 minutes. I'll be following the rest of your tips to clean up everything and finish the job. Very much appreciate the attention to detail that you provided. Well done.

Excellent video, you have explained all the steps so well. As my kitchen sink needs to be done urgently, as the original caulking has deteriorated so much, that water is getting in & wetting the under sink cabinet. However, before I start, I will watch your video again & maybe one more time after that, to ensure I follow the steps exactly.

Thanks for such a great, step-by-step video. I replaced the silicone around my kitchen sink today with zero issues because you were so thorough in describing each step in the process and the results are fantastic. The only difference was that I used a caulking finishing tool for a neater/easier finish and it was a breeze.

Ok PhD Organic Chemist here. A couple corrections: yes there are lots of cautions on the internet about making chloroform from bleach and isopropyl alcohol but that's not going to happen; also isopropyl alcohol doesn't contain nasties to keep people from drinking it. You are thinking of denatured alcohol which is a mix ethanol (the alcohol in alcoholic beverages) and some nasties to keep people from drinking it. That avoids all the taxes so now it is a good solvent at a good price. Thanks for the video. It really helped me out so I thought I'd straighten out a few chemistry details.

Glad to finally find a video on this specific topic

Thanks for having this video up! I noticed the caulk in my sink starting to separate and peel. This was the first video that came up and it’s very informative. Thank you so much for the helpful video.

One of the "tools" I used removing the silicone around my undermount kitchen sink was tongue blades. I can buy a package of 25 or so from a dollar store. They fit the crevice, help dry the area, you can spray them with the lime away to get the buildup, you can wrap a paper towel around one, using it to dry the crevice, etc. They are wonderful.

Thanks. It was my first to do the job and I'm proud of myself that it looked beautiful.

Excellent video ! Finally a good video ! I didn’t have the exact tool . I should have watched video before I started ! Was able to follow most tips and it was very helpful ! Ty

Keep up the amazing work gents. I went out and got the tools a few days ago and I’m starting the silicone in a few moments. Cheers!

Thank you for showing it 1:1 on my kitchen sink and countertop! :D. I have the same setup and I honestly hate it but now I now how to get rid of the dirt!

Thank you. I watched your video. Very detailed. I am a woman and I can do this!!

This is exactly what I've been looking for

Thank you so much for sharing this video of knowledge. I’ll now try to do my niece sink.🙏

Just what I needed , a thousand thanks!!

Excellent tutorial! I am going to replace my kitchen sink now. thank you!

New homeowner here - thank you so much for this.

Awesome work...very detailed and enjoyed step by step.

Awesome! Much easier than anticipated. Thanks!

Use mineral spirits or lacquer thinner on your finger to wipe along the seam between counter top surface and steel sink to rewove the excess silicone sealer. Water just smeared a very thin line of silicone caulk along that granite surface and looks very bad and will be even worse after some time passes. It'll also start to peel after a while as it's on the granite surface and not the protected seam area. A solvent that actually cuts through and removes the excess silicone caulk is the way to go. Water is only good for removing excess latex caulking. Shame as you did such a great job removing the old sealer and prepping all the surfaces for the new sealer application.

Thank you for the video! I followed your instructions and it worked out perfectly!

Great tutorial! Thank you so much

This video is soo helpful that, I fixed my sister's sink today. Thanks for the great video

Best sink caulk video I have seen.

Thanks so much for this video!!! We rent for now and although the owner of the house is great overall, they’re not really hands on with the upkeep so I’m so excited to know I can do it myself!! Thanks!

Bro! This is the video I was looking for my "honey do" projects. Good job!

Thanks , it was helpful

Thank you, I thought I have to call my brother to get this thing done but you made it simple.

Awesome job. Thanks 👍

THANKS FOR THE TIPS..!!!! COOL VIDEO.......!

This is exactly the advice I need - heading off to the hardware store to get those supplies! Wish me luck! When I srcaped out the old hard stuff came with it. I suspect glue from attaching process. Hope the sink won't drop off counter! If so I'll have to bring in The Professionals! Thanks.

Thank you very much for your video! much helps!!

This was an excellent tutorial, I have never caulked before and I have the same sink and black counter tops. I followed it step by step and it looks amazing. Thank you

Nice video. I have a job like this ahead of me. But I would be worried about the caulk remover spray getting drawn by capillary action, too far into the joint, and effecting the glue.

thanks, I have the same sink and granite counter tops as you.

Thanks for the help

Came here to apparently just join the echo-chamber of recognition for a great video. Thank you for uploading this. Super clear, well spoken and concise to the point demo. Great job!

Awesome, informative video! Question: I'm trying to figure out if I HAVE existing (albeit bad/fatigued) caulk where you say. My concern is that the builders might have tried to 'save a buck' and just glued the thing but didn't use any caulk afterwards. Is there way to assess that? Thanks!

Eekk gonna attempt this next week, been on the honey do list too long haha

Great, thanks!

Great video. I cant find the same style sink in home depot and lowes. Any idea were to buy it? Thank you.

Apartment maintenance men need this training! I have the same model of sink, when I moved in, the garbage disposal needed replaced so when maintenance man replace it, the sink glue broke loose causing my sink to fall. Work order after work order, he tried using the silicone sealer to reglue the sink up which didn't work for you need the glue to glue an undercounter sink. He wouldn't listen, got mad at me, and left me hanging. Finally after talking to management about it, I got him to screw in a few small piece of wood to hold the sink up which also needed the old silicone removed like you'd done, but he refused to do that part. 6 months later, I've got runny nose cold all the time from the mold for water has been getting under the sink which is rough sponge like particle boards. I need help to remediate that part. I've tried spraying peroxide all up in it. I can't put in another work order for when I put in several more work orders needing the silicone redone so water doesn't seep in, the management then told me they don't have to do anything they don't want to do. I would move, but housing really really tight and I just don't know where I could get another unit. I'm going to sign another lease then put in a pvc sheet on the bottom cut to it's size to cover up the old yucky particle floor board piece stinking. I've been blasting with ozonator box, but the problem has to be remediated for it's kickin'. The faucet was also loose goose upon moving in, put in several work orders on that, they tightened it up 3 times, but loose within a few days each time so loose and allowing water to get in. Apartment landlords are absolutely horrible in this era for they can rent a broken apartment sight unseen inside of one or two days now to the applicant with the highest credit score for companies and employees are just so corrupt leaving tenants to do maintenance even though contracts say tenants are not to work on units and the building. After resealing the sink, what do you suggest on dealing with water damage, musty odor, and the runny nose?

I just finished mine following your instructions. I hope I did it well enough. Mine was moldy like yours plus water was getting past it and dripping into the cabinet.

Thanks for the tip/reminder that there is adhesive behind the caulk that is actually holding the sink to the underside of the counter, and the caulk only goes back so far. Okay, I can do this. Again, thanks.

As a plumber I get this call a few times a year. The video is good advise for prepping the surfaces. The problem is that when the silcon was failng it retains moisture between the sink flange and the plywood deck and the plywood rottes and you can't attach to it.

Great video! Thanks. I have 1 question. Years ago, I was told when re-caulking a tub that you are supposed to put water in the tub when you’re caulking it so when the caulking dried and you let the water out the tub would retract making it a better bond is that true with sinks or is that a myth?

Thanks!!!!

Great video! Just what Needed. Step by step clear instructions with product names too. My sink and granite top is very similar to the one in your video. Thanks! Wish me luck!😊 PS could you let me know the name of the silicine brand that you use?

just moved into a ground suite in a house. the sink looks like it has never been sealed or whatever was used has disintegrated into little more than black bits. the sink seems to be screwed into the counter, there doesn’t look to be any glue around the sink. so my problem is there seems to be nothing stopping the bleach and water i will use to clean, from sloshing down into the cabinet below. is the solution just to lay down some towels, clean and then silicone ? should there be glue ?

which step alcohol used? I did not see it after the dryer

I noticed that my sink was moving. When I looked closer, I observed that the silicone was wearing away. If I follow your procedure, will the newly applied silicone secure the sink? Thanks!

What brend silicone please?

Great video, thanks for the step by step instructions. I'm curious, how do you know if you need to replace the glue as well as the just the calking? I just realized that some of the calking is "eaten away" on the bottom corner of our sink and I found out because some water leaked through when I was cleaning that silicone edge. Does that mean I need to replace the glue too?

great job. i would have opted to use gloves when touching that mold however.

What did the underside of your sink look like? Wasn't all that water and stuff leaking to underneath?

Question for your designer ... if you use black caulk (and I do like his idea) - how can you tell when it's gone moldy and needs to be changed out?

Thanks for this! I’m fixing to do this to my kitchen sink tomorrow since it’s suddenly begun leaking all around the perimeter into the cabinets below. However, the sink also seems to move somewhat and the gap between the granite and the sink itself widens somewhat with pressure…does that mean that the glue holding the sink has failed as well?

Doesn’t the bleach rust metal?

I tried to do the same work. The DAP Silisone gel, bought from HomeDepot did not dry up even after several days.

Thank you. Very helpful video. You had already shown the gross old caulk, so it was unfortunate that the old gross caulk was showcased front and center during your final reveal, taking away from the new caulking job.

There is no way that I am finishing caulk with my bare finger since I have eczema. I bought a caulk finishing tool for $5.50, and in my experience, it does a consistent job.

I followed the steps until the end where I push the excess silicone but its difficult to tell (with clear silicone) how much should remain - I feel like I just removed all of it 🤦

Don't think you need the alcohol but if it makes you better, go for it.

Took way longer than 45 mns. Silicon took forever to get out completely, but looks 100% better!!

Isn't the sink held in place by the silicone? I was told by our countertop installer if we remove the silicone the entire sink will fall.

Whatever you do, do NOT use those cutting tools unless you’re skilled and careful. There’s an actual caulk remover tool that works much better.

? Could you have just used alcohol instead of scrubbing bubbles bleach?

12:39

not bacteria, necessarily.... fungus... bad fungus/mold

Sorry my friend. Your video is done very well. Problem is in real life it doesn’t work well. Maybe my old caulking is impervious to the product.

You need to scrub that plug drain. Sink is clean drain looks scummy

Yikes, didn’t turn out well. You applied way too much silicone. Should have cut the tube so you had a smaller hole and been more precise with the application, that way you wouldn’t have spread globs around with your finger. A professional would also use denatured alcohol in a spray bottle to spray over the silicone before tooling it with your finger to prevent smearing it

that is not clear silicone caulk. It's milky color. Sorry but I would not be happy with this result.

This video could have been like 10mins long. Just saying

Wear gloves next time

A little wild with the silicone chief