How to pot? Looking for knowledge resources about potting

[slowtechstef]

There is some information in this thread:

Potted flashlight

All this talk about potted flashlight like Fenix E01 made me wonder so I took a picture of one of my other AAA flashlights (Inova XS). I hope the picture is clear enough to see, that black substance is that epoxy? [image]

PFlexPro uses Stycast 2850FT.