Transducer epoxy?

[TAzGa]

Anyone know what kind of epoxy to use to put in a new transducer? ... I just got one to replace the thru-hull transducer on my 320 that's not working. I went to boaters world and they recommended a tube of 1 part adhesive... $15 !!! ... the tube was big enough to start a transducer installation business. I want the 'Brill Cream' size... a little dab will do ya!
I thought I needed a 2 part marine based epoxy ... any idea where I can find this, or is there something else I should try?

thx,
TAz

 

[hl&s]

I used genuine Lowrance. Was around $6. Got it from Fish-N-Fun.