Every time i add some sort of EMP repeater, my azure just dismantles it.
Add a subframe EMP repeater. It will get destroyed, but it will do enough damage.
Check id:3340884 to see how I do it.
A two pixel layer of DMND will keep particles out, but not heat. luckily, if you use subframe like I did, The TUNG turns to solid SPRK, which cannot be melted. So, the heat will have no effect. and, you'll have a constant EMP blast.