Get out of our forums you fucking n00b. Go back to rotteneggz!

Alright, wise guy.

First you have to synthesize cyclotrimethylene trinitramine by nitrating methenamine in a reduced temperature environment (not really, but boiling nitric acid in your face is not fun) and precipitate it from the solution by cooling it in distilled water. Filter, and discard (or preferably neutralize...) the waste acid solution.

Then you have to plasticize the stuff with 5.3% (by weight) dioctyl sebacate 2.1% polyisobutylene, and 1.6% of motor oil (wikipedia recommends SAE-10, but I fail to see how important that would be).

You could plasticize it with a myriad of other things (mineral oil and lecethin, vegetable oil and flour, probably) but then it wouldn't strictly be C4 anymore, would it?

Smartass.