Self making and improvising fireproof, bomb resistant and bullet resistant suits

Self making, the following through self buyed materials.

A fireproof suit

A bomb suit

A bullet resistant suit

And tests. (at the right place, and while not having the suit on)

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Self making the following, through what's at hand fast.

Improvised fireproof suit

Improvised bomb suit

Improvised bullet resistant suit

And tests. (at the right place, and while not having the suit on)

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By Jef Koelewijn

Cryogenic hardened steel bullet resistant, ballistic plate

Cryogenic hardened steel bullet resistant, ballistic plate

Freeze tempering, cryogenic hardening a steel ballistic plate by bringing it to around -185 degrees celcius.
-Mainly done with liquid nitrogen.

Maybe as an extra tempering method to make it even harder.
Maybe first: Normal tempering. And baking tempering for 1-2 or more hours.

By Jef Koelewijn
From South-Holland, The Netherlands