Solders & Fluxes

Industrial Soldering Technology Solutions

535MIL High Temperature Dipping Flux

Qualitek 535MIL is a traditional RMA rosin activated flux composed of pure white-water gum rosin, together with unique wetting agents and very effective activators. The flux is very stable at higher temperatures and contains a solids content of 35%. The flux will work well for both leaded and non-leaded soldering applications. This high solid flux will work well if you are tinning electrical cables or windings on transformers that need to have the insulative shellac burnt off in a high temperature 350 degree centigrade solder pot. If looking to use on motors the post soldering residues will remain insulative and non-corrosive.

Previously, this flux would have met the older military specification Mil Spec. Today the IPC organisation controls flux classification and states that Qualitek 535MIL meets ROM1 IPC-J-STD-004B specifications.

Key Product Features and Benefits:

  • Highly insulative
  • Non-corrosive residues
  • Meets IPC-J-STD-004 ROM1 specifications
  • Designed for both leaded and non-leaded soldering
  • Excellent solderability on copper and brasses
  • Rosin based


Product Number : 535MIL

Prod. No. FL-030-099
535 Liquid Flux 250ml

£ 7.95

Currently in stock : 1

Prod. No. FL-030-097
535 Liquid Flux 125ml

£ 5.98

Currently in stock : 0 Lead Time : 15 Days

Prices exclude VAT

Data Sheets and Info

Technical Bulletin