Covalance Dust is a material introduced by Equivalent Exchange. It is used to repair tools.
Low Covalance DustEdit
Low Covalance Dust requires 8 cobblestone and 1 charcoal. It can repair leather and chain armor, wooden and stone tools, rubber boots, treetaps, bows and fishing rods.Like all dusts it is used in making Alchemical Chests and Tomes. It is used in making the Divining Rod.
Medium Covalance DustEdit
Medium Covalance Dust requires 1 iron and 1 redstone. It can repair iron, gold and bronze armour and tools. It can also repair gem tools, flint and steel, shears, composite vests and insulation cutters.Like all dusts it is used in making Alchemical Chests and Tomes. It is used in upgrading the Divining Rod.
High Convalance DustEdit
High Convalance Dust requires 1 diamond and 1 coal. It can repair diamonds tools and armour. Like all dusts it is used in making Alchemical Chests and Tomes. It is used in Alchemical Bags and upgrading the Divining Rod.
It does not seem to be able to repair items from Balkon's Weapon Mod. However, it does work on gem tools.