[qzgCVHex]

Most kitchen sinks come soundproofed with some pieces of bitumin type material stuck on.

This basically damps the ringing sound when you hit the sink with dishes.

You can buy similar stuff at places like Jaycar and car accessory shops.

Like this:

http://www.jaycar.com.au/productView.asp?ID=AX3687

Might be cheaper somewhere else.

the standard soundproofing is usually not fitted .. mostly it is just mountings..

I hate kitchen sinks..
my hearing is weird shit and kitchen sinks ruin any conversation I'm attempting to listen to.. no matter how far away the sink is.

There is a simple answer.. get a shower mat.. you know the ones with the suction caps?

cut to fit the inner surface of the sink. edit: can be moulded to fit all exposed surfaces.

Take it out and clean it or throw it away, start again.. whenever the needs arise.