[Amps] Plate choke material..

[robert briggs]

Hi all, I am scratching around to find some material to make another 
couple of plate chokes for one of my new amplifiers..

Price of 3/4 inch Teflon per foot here in Aus is outrageous....I have 
some Ultra High Density Polyethylene 3/4 rod here and wondering if this 
is suitable for the job?..The choke is in the vicinity of the tube 
exhaust and I certainly don't want to  end up with a banana or worse... 
The choke is to be mounted horizontally..

Regards all.....Bob VK3ZL..