Blue putty is a must have for every audio workbench. We use it to hold balanced armatures for soldering, cables for braiding, and backdrops for photoshoots. Works perfectly for acoustic damping, sealing, and isolating. It truly is the swiss-army chainsaw of materials for homebuilders.
Note: this is the putty that is included with Vibro Veritas.
We recommend one stick for most users.
Blue putty is sold in 0.2 oz (5.5g) bars.