Noise reduction pasteboard - what is it?

[****]

Hi all, I googled it but suprisingly it didnt have any info. The Noise reduction pasteboard came with a franke sink but i am not sure if it is used like silicon or not.

Any ideas?

Thanks for reading

 

[stevetheplumber]

sheet of bitumastic stuck on bottom of bowl usualy

 

[****]

Heres a photo?

 

[spanner]

I know there's three differences in plasterboard
Pink- fire resistant
Blue - sound ( reducing)
Green- moisture
Grey- ordinary
Black - your pictures
And what a great handle you have ****
Noise reduction plasterboard is what you'll find multiple dwellings
Hallways!
Next door neighbours!
****!
Passages!