◎ Features and Scope:
JL-F290 is a high performance without any rosin flux, solder ability to film, solder spreading fast. Full bright spot, no residue after soldering, reliable joint quality. Suitable for copper, brass, phosphor bronze, Kovar line Dumet and nickel-plated solder layer material. Used in electronic equipment, instruments, household appliances and PCB soldering.

◎ Notes:
* With no other kind of flux, diluent mixing。
* Life on military products and medical electronic products, digital instrumentation, etc. must be cleaned according to the requirements of our company.
* JL-F290 sealed spray for welding, may not add thinner.
* JL-F290 foam and brush for welding, flux continuously discharged a week should get a new flux.
* For severe oxidative lead pin board or recommend treatment after welding.
* Reasonable amount of spray or foam height adjustment, so that the flux can be evenly distributed in the surface of the plate, for a crystal oscillator IC sockets and circuit boards, in particular, be careful to adjust the amount of coating flux.
* Spray cans should be cleaned once a week, before and after the nozzle should be cleaned once or commuting to work every day, it is recommended to use my company C series cleaning agent.

◎ Main components: a low-carbon alcohol solvent, surfactant, co-solvent, stabilizer.

◎ Storage: flammable and should be stored in airtight away from the fire, dry and ventilated place, storage temperature should not exceed 400C.

◎ Packing: 20 liters plastic bucket or other agreed means.