Learn how dry storage, sealed packaging, clean hoppers, and controlled redrying help protect SJ601 flux and submerged arc weld quality.
SJ601 flux may appear dry even after exposure to humid air. Because moisture and contamination can affect submerged arc welding, storage should be treated as part of the welding quality system.
How Can SJ601 Become Contaminated?
Typical causes include:
- Damaged or open bags
- Storage directly on concrete floors
- Humid or unheated warehouses
- Condensation after temperature changes
- Open welding hoppers
- Dirty recovery hoses and screens
- Contact with oil, rust, or grinding dust
- Mixing damp recovered flux with new material
What Storage Practices Are Recommended?
Keep unopened material in a dry indoor warehouse. Store packages on pallets, away from walls and water sources. Reseal opened bags, cover hoppers, and use dedicated containers and recovery equipment.
First-in, first-out inventory control can help reduce long storage periods. Where required, maintain records for opening, drying, transfer, and recycling.
Should SJ601 Always Be Redried?
No universal cycle should be assumed. Redrying temperature and holding time must come from the actual product instructions and approved procedure. Excessive heating may alter flux behavior, while insufficient drying may leave unwanted moisture.
What Symptoms May Indicate a Problem?
Possible warning signs include irregular feeding, unstable operation, changed slag release, porosity, excessive fines, and inconsistent bead appearance. These can have multiple causes, so wire condition, parameters, joint preparation, and equipment must also be checked.
Dayang Welding offers moisture-conscious export packaging and recommends confirming storage and drying instructions for the supplied SJ601 product before use.
