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Flux gels Flux gel RS-4004

Recommended method of application
Repair work on printed circuit boards, dip tinning

No Clean-Flux gel
Highly active, halide-free activated (WEEE/RoHS compliant)
Type ISO-9454: 2231 \ DIN EN 61190-1-1 (acc. J-STD004) ORL0

Cat.-No. 4732

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Emil Otto Flux-Gel RS-4004 in 5 ml Syringe


This flux gel was developed for repair work on printed circuit boards. The activator base contains the same active ingredients as the comparable electronic flux RS-4004. Flux gel RS-4004 is highly concentrated and is characterised, among other things, by high activity as well as good wetting and spreading. Due to these properties, the paste should be applied sparingly. The gel is applied from a dosing syringe using metal dosing needles. These enable precise application or positioning of the flux. Flux gel RS-4004 can be applied with a hot air or soldering iron.

In individual cases, which must be checked by the user, this flux gel can also be used to support the wave soldering of critical components. The application is carried out as described above.

Customer added value

  • Ideal when using type of fluxes RS-4004, uniform activator base
  • Recommended for applications according to IPC / IPC 610
  • Flawless soldering results
  • Economical in consumption
  • Even contaminated pads and component legs are activated
  • No crystallization, paste remains homogeneous and stable
  • Careful and targeted dosing
  • Metal dispensing needle can withstand thermal stress and can be used during used with hot air or soldering iron
  • Leaves no sticky residues

Packaging units

Syringe: 5 ml, 10 ml