Bead release

Bead release is the substance that you put onto your mandrels to prevent your glass sticking to the metal. This means that (provided you can get the bead off)your mandrels are reusable. There are many different brands of bead release available including:

Dip and Go Sludge

Some bead release is available ready made and some are in powder form that you need to add water to in order to use.