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Flux paste GAX-50

Recommended method of application
Manual, repair and dip soldering, special applications and suitable for SnPb and Pb-free alloys

No Clean-Flux paste based on synthetic resins
Di-carboxylic acids, VOC-free, halogen-free (WEE/RoHS compliant)
Type ISO-9454: // DIN EN 61 190-1-1: RELO

Cat.-No. 2999

Technical Data

Appearance: beige to amber, opaque, waxy paste
Smell: mild
Solids content: very high
Density at 20 °C: 0.9 – 1.0 g/ml
Activators: di-carboxylic acids, synthetic resin, halogen-free
Flash point: > 80 °C
Viscosity (DIN EN ISO 3219): highly viscous
Viscosity (DIN 51810-1): start: 8.816 – end: 6.571
Durability: 12 months


The soldering flux paste GAX-50 has been developed for repair soldering. In addition, the soldering flux paste is suitable for dip tinning as well as special applications. GAX-50 is characterized by a high activity and good wetting and spreading properties. Due to these properties, the paste should be applied sparingly. Application takes place via a dosing syringe with a plastic tip. This enables the accurate dosing and positioning of the paste.
The processing of the soldering flux paste can be done with the aid of hot air or soldering irons but also with MINIFLOW soldering tips.

Customer added value

  • Very good soldering properties (capillarity, wetting)
  • Broad process window (very high thermal stability, very high activity over a long interval)
  • Exact dosage
  • No separation
  • VOC-free

Packaging units

Syringe: 5 ml, 10 ml