How long is the soldering flux valid?
The soldering flux is stored in a cool place as long as it is sealed. The shelf life is one yearIt usually placed in tin flux in high temperature and high humidity weather encountered, often put a day for second days due to flux to absorb moisture in the air and affect the welding quality.
Usually write 6 months, normal preservation should be no problem for three or five years.
Can not be generalized, the flux in the depositing process, acid value will drain slowly loss and its effect on welding with capacity will be gradually reduced, the flux of halogen now, generally three months or so, the flux containing halogen, can be stored for six months to a year or even longer, have a great relationship with the specific formula.
