I suspect the product Lee Rothrock is looking for is Plastidip:
http://www.plastidip.com/home_solutions/Plasti_Dip 
There is also a .co.uk web site.

I have not used the spray version but, on one or two occasions,
I have used the brush-on version, thinned down.  Obviously a proper
restoration is always the preferred option, but this product does
seem to work and will give a quick fix, but I'm not sure how long it
will last.  It does add some stiffness to any bellows, of course.

John Farmer, UK