I put to one side the quest for ultra-low viscosity silicones, and went for the silicon putty method instead. But I do plan to get back to the ultra-low dental silicones at some point.
The method I'm using here is nothing new, but I think it's worth a demo since I had it all out today. It's simple and compact, it can be done pretty much anywhere without burning holes in any of your fleshy parts, can be done on the vast majority of keys (including restricted) and, above all, it's fun
Mind you, without doubt it also demonstrates yet another reason to NOT leave your keys laying around unattended. All a bad guy needs is to separate a key from the owner for 5 minutes to produce a mold (if they had a casting box pre-loaded). From that, they could then walk off and produce any number of copies in their own time, regardless of if it's a restricted hi-sec key or not.
Anyhow, put the kettle on, find some worthwhile cookies, and ..... enjoy
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