This lightweight, natural willow charcoal block is the perfect surface for soldering on.

Charcoal is an excellent soldering surface as it reflects the heat back onto the metal being soldered for quicker heating as well as creating a reducing atmosphere (consuming the oxygen around the piece being soldered) which helps reduce fire stain. 

• Size: 14 x 7 x 3cm
• The charcoal is made from a whole, solid block of wood (not pressed) so it is both soft and firm and won't crumble but it is soft enough to push pins or similar items into the surface to support work during soldering
• You may find it useful to retain the block shape by wrapping the sides tightly with binding wire as cracks can develop throughout use
• This is a very versatile soldering surface as shapes can be drilled or even carved into the surface to use as a crucible in which to melt and cast metal and it is also great for granulation work
• Images from Kim's 12 Months Of Metal series - watch tutorials here