After putting a few globs of silicone on a PCB, [Charles] wrapped the whole thing in Tegaderm. Much to his surprise, the silicone cured and made a smooth, glossy protective covering on his board.

[Tuval Ben Dosa] designed a complete PCB etching station that is the perfect ... Along with that is an I2C temperature sensor encased in a silicone tube, a stir bar, diaphram pump, and a few ...