Not sure if maybe you guys have already heard of this stuff but apparently some people are using it to seal the gaskets on Tandem pumps. I had to replace my wife's at a cost of about £350 not that long ago so I was intereste when I saw this on another forum, anyone got any experience of it and is it any good? http://automotive.hardwarestore.com/90-558-gasket-sealer/indian-head-shellac-gasket-compound-613357.aspx,
Cheers
Wallace
Cheers
Wallace