Polyradanide

Polyradanide was a sturdy synthetic polymer of the element Dilithium, it was able to withstand 3.2x the stress of normal dilithium degrade 32% slower in a articulation frame, that being 39% when supported by a Theta-matrix compositor.

Polyradanide was able to withstand 76 gigapascals (11,000,000 psi) of pressure, over 12 gigapascals more than the pressure absorbed by a standard amount of dilithium at 5 minutes at warp 9.9372.

Polyradanide was created to withstand long-term exposure to Warp 10+. After prolonged computerized testing, it was excepted the dilithium matrix and structural reinforcements and reconfigurations made were sufficient to allow for the "Transwarp project" to go into physical testing. In early-2389, the first Polyradanide-based vessel was brought into service and was a success.

Dilithium was used on vessels which weren't refitted with, created to withstand, or mission didn't include transwarp travel.

By 2474, Polyradanide had gone through molecular engineering which made it more durable allowing for the Federation to progress to the highest most stable warp speed of 20.535, although 21.232 was achieved for 13 minutes by the USS Inventum.