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Two 35 g jars of rosin soldering flux paste

Soldering 2x35g

SKU CH-M9PD-R5XCV

Two jars of lead-free rosin soldering flux paste totalling 70 g for electronics repair and DIY soldering

  • Certifications and standardsLead Free Compliant
  • Lead-free formula protects components
  • Two jars supply 70 g total flux
  • Non-corrosive rosin safe for circuit boards
  • Anti-oxidation paste preserves soldering iron tips
  • Suitable for copper, tin, iron and gold

Rosin Soldering Flux Paste

This product is a rosin-based soldering flux paste supplied in two jars. It is formulated for lead-free electronics soldering and repair work. The paste suits hobbyists and technicians who need a non-corrosive flux for circuit boards and component rework.

Sustained soldering sessions

The flux resists oxidation on iron tips during extended use and maintains a semi-solid consistency that does not run. Its boiling point sits slightly above the solder melting point, helping to stabilise component and board temperature while the joint forms. The paste remains effective through repeated heating cycles without drying out.

Build and daily handling

Each jar contains 35 g of solid paste that is insoluble in water but soluble in common solvents such as alcohol and acetone. The non-conductive, non-corrosive rosin leaves a protective coating that prevents corrosion after the joint cools. Two jars give a total of 70 g for long-term bench stock.

How it compares

Measured against everything we stock in Soldering Irons & Stations, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 80% of the 802 comparable items (median $25.99).

Specifications

Environment & compliance
Certifications and standardsLead Free Compliant

Questions about this item

Does the flux paste produce strong fumes or heat during extended soldering sessions?

The rosin flux is solid at room temperature and only activates when heated by the iron, so it adds no extra heat or noise; normal ventilation is still recommended.

What solder and iron do I need to use these two 35 g jars effectively?

The paste works with standard lead-free or leaded solder wire and any temperature-controlled soldering iron; no special alloy or tip is required.

Will this flux damage older gold-plated or copper contacts on vintage boards?

The rosin is non-corrosive and non-conductive when dry, and it protects gold-copper alloy surfaces from oxidation during rework.

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