Paul. it's all 'TEFLON'. Just diff varieties.... eg; block/tape etc... Do what I did & double the tape strips up where nec. or get a few diff. thickness'sssss.
Aluminium = very hard to glue.
I haven't found a good aluminium glue yet!
Lots of better stuff avail.
Paul, you might also try 'Cadillac Plastics'. They might just have some teflon as well.
HTH.
L.