In hope of keeping my bike seat out of some crackhead’s streetcorner sale, I have applied polycaprolactone (AKA Shapelock plastic or PCL) to the vulnerable hex-head bolts. I covered the top bolt on the seat (pictured), the seat post bolt, and the headstock bolt. It is impossible to remove by hand but can be removed in a few seconds with [redacted]! Then all you need is a bucket of hot water to reapply it.
Just last week, my neighbor Laurie had her bike seat stolen by loosening of the bike seat bolt :-(
If there is no update to this post, you know the PCL has done it’s job!
Coreyfro got a huge quantity of “CAPA 6800” at Tri-ISO and Noisebridgers split it up. I got 2 kg at $18/kg. I’ve made a couple things so far, over the door coat hangers that I use often, a headphone holder (Trebor’s idea, I expounded on it) that is awesome, a little plastic shield for a wire that goes through my window sill…
Great fun!