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Wire-Balm PROTEC WLS04

Wire-Balm PROTEC WLS04

Contact lubricant for MIG/MAG welding wire

  • Wire-Balm PROTEC WLS04 is a contact lubricant for wire electrodes used in MIG/MAG welding, MIG brazing and laser brazing processes
  • WLS04 ensures a perfectly clean wire with perfect feeding characteristics
  • For stable arcs with optimum ignition and reduced spatter output


  • Stable arc in robotic MAG welding process
  • Application of PROTEC WLS04 with wire-pads and -clips


  • Maximum process stability thanks to continuous levels of current transfer resistance and constant friction values
  • Easier to start moving, for this reason, it prevents ignition faults and burn-backs
  • Prevents micro arcs in the contact tip
  • Reduction in the diffusible hydrogen content in the weld
  • Tested and approved by renowned welding wire manufacturers and users

Customer benefits

  • Increased productivity, significant reduction of downtime
  • Maximum process safety, also with high-alloy materials or on challenging liner
  • Longer service life of the contact tip and liner


The agent is applied using wire PADs and wire CLIPs:

  • Two wire PADs each are positioned one after the other: one drenched in Wire-Balm PROTEC WLS04 and then one dry PAD (tandem process)
  • For this purpose, evenly drench one wire PAD with WLS04 by pressing the pad on the can opening and tilting the can — a small quantity is used, the PAD must not drip, even when squeezed firmly.
  • Fold both PADs and position on the welding wire using wire CLIPs (upstream of the wire input)
  • During on-going operation: check both PADs once per shift and re-position (turn further, re-fold or turn around);
    Reapply agent to the drenched WLS04 PAD once every shift (1-2 ml)

IMPORTANT: Start first use with a new liner.

Not suitable for aluminium wire.


  • Effective ingredient type: Ester oil fluid
  • Density (20°C): 0.88 g/ml
  • Viscosity (40 ℃): 4.0 mm²/s
  • Flash point: > 100°C
  • Pour point: -6°C
  • pH value: n. a.
  • Shelf life: At minimum 12 months
  • Safety data sheet: on request
  • Wire-Balm PROTEC WLS04, 250ml can, ID no. W001.003
  • Wire PADs (12 units per package), ID no. Z008.002
  • Wire CLIPs (12 units per package), ID no. Z009.001

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