 3DQP is used for the manufacture of nuclear weapon re-entry vehicles (RV).The quartz material 'hardens' the RV protecting the nuclear warhead against high-energy neutrons emitted by exo-atmospheric Anti-ballistic missile (ABM) bursts before re-entry.3DQP was first used on the British Chevaline improved front end (IFE) for the Royal Navy's UGM-27 Polaris system that was in service from 1982 to 1996, when it was replaced by Trident D5.