Construction workers outside my home were using a jackhammer. The vibration caused my sink to crack. The contractor says this is not possible. Is this true? In any case, I now have a crack in my sink. How can I repair the crack without replacing the sink and countertop?:confused:

What kind of sink. Must be some type of solid surface with integral sink. I have to admit that that I too would be skeptical unless they hit drain line and you have cast iron and galvanized drain piping. Maybe it just happened. Of course it's different if they are shaking your house, rattling windows and doors.

Sorry, just reread title of your post. You will have to engage the services of a Corian professional. This is known to occur with Corian integral sinks occasionally. Some Corian cracks can be repaired by DIYs but this requires professional.

I agree with Harold. If the jack hammering could crack your sink there would also be several other things happening like cracks in the walls, dishes falling, etc...

Is the crack still water tight?

Does it radiate from the sink drain?

If not describe or send picture.

Is the counter cracked as well?

Many of the most common cracks are repairable by a method I developed 15 years ago to good success.

If the crack cannot be repaired the sink will have to be replaced by a professional.

It is possible that the sink was under stress and the vibration was the last straw. That stress could have been physical pressure on some part of the sink or from many times pouring boiling water directly into a cold sink.

I've specialized in Corian repair for 15 years. My hunch is that it was a coincidence that the jackhammering and the crack in the Corian sink happened at the same time, but anything is possible. Most Corian sinks never crack but some do, and I've never heard of a sink crack being associated with jackhammering before. The most common causes of Corian sinks cracking are pouring large amounts of boiling water into a sink without running cold water at the same time, and placing very hot pots directly into a sink. Massive direct impact can also crack a sink but that is rare. Professionals can replace a cracked Corian sink - I have photos of a typical job and a detailed explanation of the procedure on my website.

i have a different problem. had a little fire (yea flames) in the kitchen and threw a burning kitchen towel in the sink. while attending to other events for a few moments, that towel continued to burn. when i got back to it, i noticed staining in the sink. so, i thought maybe just soot/ash, but no, seems to have actually altered the surface. this is an integrated sink. can this be repaired/resurfaced or must i replace (if so, does whole counter need to go)? help!

Doubtful, but you can try sanding. Depends on how deep the damage is. Corian is same material and color all the way through.

Start with fairly course sand paper like 100 grit to remove damage material. If you can remove all damage material then sand with progressively finer paper 120, 150, 200, 400. Then polish with 600 grit. Do not skip any grits.

bshowto,

I agree with Harold. The replacement of the sink alone is done. Some fabricators will do it in your home. The cost will be about $1,500.00. Call DuPont at 1-800-426-7426 for repair specialists in your area.

That said, you have nothing to loose in trying to sand it out. Check the depth carefully and don't sand too much past 1/8". You might check from underneath if the discoloration has gone all of the way through. If so the sink may now be too brittle to trust.

Also, after 400 grit you will get a better finish if you use a maroon Scotch-Brite followed by a gray one. Get them at an auto supply rather than Home Depot. 3M makes two grades of these and the automotive is the right one.

I hope this helps.
Ken