Fixative

["Jane Mortimer" <jane@zzzzzzzzzzzzzzzzzzzzzzzzzz>]

I have recently completed a sculpture in very soft Bath limestone.  Part of
it is sanded smooth, but the lower section is roughly chiseled, and
continues to shed dust.

Someone mentioned to me a fixitive sealant spray for stone, usually intended
to seal it from weather etc. but in this case he said it should stop the
sculpture from shedding further dust.  Unfortunaltey I can't remember the
name of the product.  Can anyone enlighten me?  I need something that's
available in the UK.

Thanks a lot
Jane