Polymers, page-60

Did you read the heading of the article mate......it relates to weight.

However, going down the track you bought up..... ammunition gets stored, by the many millions, depending on the site. Fire prevention is (obviously) a high priority, and that of supression, and containment. Containment can be thought of as a particular bunker, down to an individual case. Cases, propellants, primers, projectiles can all behave differently with applied heat. IMO, in storage, polymer ammunition cases treated with Alexiums Chemicals would be a great benefit.
Heres some exerts on a basic test applying heat to brass cased ammunition....

"In rifle and handgun cartridges where the flame was applied to the base of the cartridge the primers always detonated but the powder only ignited in half the cases and in those instances the cases did not rupture but the gas was instead vented through the primer hole."

"When he heated these same handgun and rifle cartridges at the front, the powder would burn and the cases would usually rupture but with few exceptions the primers did not detonate. The velocity of expelled projectiles ranged from 58 ft/s to 123 ft/s. The only exception was the .270 cartridge where the bullet velocity was 230 ft/s. Primer velocities ranged from 180 ft/s to 830 ft/s."

"When cartridges are placed in a fire he confirms that the most dangerous component of a cartridge is the brass, or fragments thereof that may cause eye injury or penetrate skin, but certainly there is no evidence that a cartridge that is not in a firearm can cause a mortal wound, either by action of the bullet or the brass/primer fragments. It is important to remember however that a chambered cartridge that detonates in a fire is just as dangerous as a cartridge that is fired under normal circumstances in a firearm."

Oh..... Pinto..... Id have though the plastic blank ammo you talk of, is warm....but not thinking enough to make you dance. 7.62, 5.56.... Brass....well different matter, yes bloody hot.

Cheers,
Mick.