Presumably it all looked OK when you signed the work off and paid for it?
Well yes, but unfortunately I don’t have micro or future vision lol.
The tops are from Howdens, as is the rest of the kitchen. They are bolted from underneath.
I can feel that the top has been sealed around the sink from underneath.
Images paint a 1000 words so… http://tinyurl.com/6g6l7v8
The 1st image is a front on shot of the cracked sealant on the L join that’s on the opposite side of the kitchen.
2nd image is away from where the bubbling is.
3rd image is a top shot of the L join is on the affected side away from the bubbling and you can see where it the sealant has become cracked.
4th image is the 2 bubbled areas.
If water from wiping the surfaces down can do that, then clearly the product should not be on the shelves!!!