[Amps] Source for Chimney Material?

[Jeff Maass]

I need some of the silicone rubber sheet material used in 
fabricating chimneys in Alpha (and other) amps, and some of
whatever cement/glue is used to connect it to itself to form a 
cylinder.

Where does one purchase such items?
 
 Jeff Maass       jmaass at columbus.rr.com     Located near Columbus Ohio
         USPSA # L-1192       NROI/CRO    Amateur Radio K8ND
Maass' IPSC Resources:  http://home.columbus.rr.com/jmaass/index.html
Circleville USPSA/IPSC: http://home.columbus.rr.com/jmaass/pcsiipsc.htm