Sealing a sink to worktop

[compact]

The sink in our house, which we bought a year ago, does not seem to have been sealed around the edges to the top.

It seems that water has got under the edges and the worktop is delaminating.
What do you suggest.
At the side the to layer has actually delaminated so it bubbles a little.
At the rear, the wood/chipboard worktop seems as though it has expanded and you can see a tiny gap.

I was thinking of re-adjusting the sink and using sealant from a gun to seal it all. Bit of a bodge but want it to look great and last time next Spring when I am going to possible replace the kitchen.

Any ideas?

 

[Gasman28]

Plumbers mate or silicon

 

[spacethegas]

the cut should have been sealed. my choice would be neat pva. much more important than sealing around the sink.

you can take the sink out. treat the cut. cramp it down. replace the sink a day or two later on a bed of dow corning.