Welding Electrodes

SEED’s CMC (Carboxymethyl Cellulose) serves as a critical binding agent in electrode coating formulations, creating cohesive structures that hold coating ingredients together on the core wire during manufacturing, drying, storage, and welding operations. CMC provides excellent adhesion between coating materials and the steel core wire, preventing coating detachment during handling or welding that could compromise weld quality or create safety hazards.
CMC provides green strength to freshly coated electrodes, allowing careful handling after extrusion and before oven drying. This green strength prevents coating damage during transfer to drying ovens and arrangement on drying racks. The controlled moisture release during drying prevents coating cracking, spalling, or separation that could render electrodes unusable.
During welding, CMC combusts completely within the arc zone, contributing to arc atmosphere composition and slag formation. The controlled decomposition produces gases that protect the molten weld pool from atmospheric contamination, while the ash residue contributes to slag chemistry. CMC’s complete combustion ensures no residue remains in the finished weld that could compromise mechanical properties or corrosion resistance.