Argentium Masking Mud is an anti-fusing agent that helps ensure a crisp, clean fusion of metal parts when soldering or fusing them together. The mud protects the metal adjacent to the area to be joined so that the joint is precisely—and only—where you want it. The mud also serves to prevent the adjacent metal form or structure from distorting under the heat of the soldering/fusing flame.
 
Includes
Masking Mud 70g
Pipette
scoop
 
Directions
Mix a scoop of powder with a few drops of water until you reach the desired consistency.
Apply flux first to the area to be joined then let dry. 
Apply a thin coat of the mud to areas that you do not want to fuse or solder.
After your workpiece cools, easily remove the masking mud with water and a soft brush, then pickle.
 
*This masking mud works well for Argentium Silver,  gold, silver and non-ferrous metals.
Made in the UK.