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PostPosted: Tue May 02, 2017 10:44 am 
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I have a new steel kitchen sink in a new laminate worktop, two months old and the sealing strip around it is coming away already. I want to get something to patch the gaps in the sealing strip as it progressively comes away - what though?

The worktop is black, the sink stainless steel, and the sealing strip is clear. I think clear sealant is best here. I'm no use with a sealant gun but I would do my best. Since the sealing strip hasn't lasted - only along the most-cleaned edge though, the other 3 edges are OK - I thought Bostik clear glue might work instead, just squeeze it out of the tube. Or Bostik Clear Waterproof Leak Repair Sealant, an outdoor compound, cheap enough, needs a gun.

The initial job would need only about 10-20ml of sealant. I know silicone is recommended but If I got a 290ml cylinder would it cure in the cylinder if I left the remainder? I'm sure I need something I can re-apply occasionally.


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PostPosted: Tue May 02, 2017 5:44 pm 
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:welcomeuhm: First thing I'd do is get the person who fitted it back to sort it out...Our kitchen sink has been in situ since 2009 and hasn't had to be sealed

Failing that you'll need to remove the sink, remove all traces of existing sealant and re-seal with a good quality silicone such as "Geocel the works"

Whatever you do don't attempt to bodge a repair with glue... :roll:
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PostPosted: Tue May 02, 2017 7:14 pm 
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There shouldn't be a sealing strip around the sink - it should be under the sink top, between that and the worktop.

Are you sure this is not just poorly cleaned off excess sealant?

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PostPosted: Wed May 03, 2017 10:00 am 
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This is a section of the sink edge. The job was done by professionals. I don't have the experience to know if it looks professional. If you enlarge the pic you can see the seal doesn't go between worktop and sink.


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PostPosted: Wed May 03, 2017 4:26 pm 
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If you mean that piece of stuff that looks like thin sellotape then just remove it. It's not a seal it's the protective film that covers the sink prior to delivery/installation.

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PostPosted: Thu May 04, 2017 8:52 am 
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It's not sticky tape. It looks extruded from a nozzle and pressed down. It's very stretchy and not very sticky. Probably clear silicone but I wouldn't know for sure.


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PostPosted: Thu May 04, 2017 9:24 am 
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If it is silicone sealant, and it does look like it from the photo, the 'professionals' that did the job did it poorly. The best way would be, as has been said, to remove the sink and clean all traces of sealant, then refit the sink with new sealant. You cannot get a good seal by putting silicone on top of existing silicone. Water leaking under the sink from the worktop will, in time, soak into the chipboard below the laminate and you will need new worktops.


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PostPosted: Thu May 04, 2017 5:43 pm 
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ayjay wrote:

Are you sure this is not just poorly cleaned off excess sealant?


Reckon Ayjay is spot on. just a bit of left over badly tooled excess silicon.

The actual silicon seal is hidden between the sink and the worktop. Your best option in my opinion is do nothing.

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