S-39® Universal

Bottle with brush 80 ml

Universal, acid-free soldering flux

S-39® Universal



  • Universal
  • Acid-free
  • Powerful cleaning effect
  • Maximum temperature range 375°C
  • With brush
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Suitable for:

For soft soldering all metals (with the exception of aluminium and its alloys) in practically all areas of application. Suitable on all types of solid tin solder.

Not suitable for:

Not suitable for drinking water pipes. This requires the use of a KIWA-approved flux in combination with a lead-free alloy.

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Before use:


Soldering iron or burner, solid soft soldering alloy, scouring fibre, pipe cutter, fitting brush, deburrer, Heat-Shield, cloth

During use:

Directions for use

1. Sand joining surfaces well and clean (bare metal) with Griffon scouring fibre. 2. Apply flux evenly with brush to both joining surfaces. Avoid overuse of the flux. 3. Assemble joint. Use only well-fitting parts. Avoid overheating the flux, as this will hamper the flow of the solder. 4. Heat joint evenly and add tin solder. Allow the solder to melt onto the soldered seam and not in the flame or on the iron. Completely fill soldered seam. 5. Remove flux residue with water or a damp cloth. 6. Allow joint to cool in air.

Points of attention

Use Griffon Heat-Shield to protect walls, tiles, wallpaper, paint and plasterwork, for example.

After use:


Immediately remove stains with water or a damp cloth.

Storage conditions

Close the container properly and store in a dry, cool and frost-free location.

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