Solder Connection

Solutions in Soldering Technology

Delta 285-15 Rosin Mildly Activated Flux

Qualitek Delta 285-15 rosin mildly activated flux is formulated to meet the requirements of high speed soldering operations, with activities close to that of a fully activated rosin flux. 285-15 meets the requirements of type RMA per JSTD-004 (formerly MIL-F-14256). The unique activator and solvent system keep the activator from separating after a prolonged period of foaming or waving. The flux performance will remain stable throughout the soldering process.

285-15 can be applied by wave, brush, dip, and foam methods. It exhibits superior foaming
characteristics with a uniform stable foam head, and is excellent for tinning stranded wire, component leads, and attaching lead frames to hybrid circuit assemblies.

Key Product Features and Benefits:

  • High solids (15%), rosin-containing flux
  • Very bright solder joints
  • High SIR value
  • Non-corrosive
  • Meets J-STD-004 (MIL-F-14256) - ROL1

If you require a higher solid content, Delta 285 Flux is also available in 25% Solids here.


Product Number : 285-15

Data Sheets and Info

Health & Safety

Technical Bulletin