We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two 2oz jars of rosin paste flux, semi-solid consistency

Solder 135 Rosin Paste Flux 2oz 2-Pack VC-a4-45304

SKU CH-QTJM-0V8ZC

No-clean rosin paste flux in a semi-solid wax form for controlled application on circuit boards and copper wire, compatible with lead and lead-free solder

  • Fit and compatibilityVC-a4-45304
  • Certifications and standardsLead Free Compliant
  • Precise application with semi-solid paste consistency
  • No-clean formula leaves safe, non-conductive residues
  • Works with both leaded and lead-free solder alloys
  • Suitable for PCBs, copper wire and DIY electronics
  • Lead-free compliant formulation for modern assemblies

Electronics Soldering Flux

This rosin paste flux is formulated for electronics work on circuit boards and copper wire. It suits both leaded and lead-free solder alloys. The semi-solid consistency allows precise placement without run-off. Each pack contains two 2oz containers.

Sustained Workbench Use

The paste stays tacky during extended soldering sessions without drying out or becoming runny. Residue remains non-corrosive and does not require cleaning after the joint cools. This behaviour supports repeated rework on the same board over long periods.

Thermal and Residue Profile

The flux activates at typical soldering iron temperatures and leaves a clear, safe residue that does not conduct electricity. No additional cleaning agents are needed, reducing chemical exposure during regular use. The material is lead-free compliant.

How it compares

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

Price $18.99
Cheaper than about 64% of the 802 comparable items (median $25.99).

Specifications

Compatibility
Fit and compatibilityVC-a4-45304
Environment & compliance
Certifications and standardsLead Free Compliant

Questions about this item

Does the 135 rosin paste flux create fumes or residue that need ventilation during long soldering sessions?

The no-clean formula leaves safe residues without a goopy mess, so it does not require cleaning after use.

What solder alloys and wire types does the VC-a4-45304 flux work with out of the box?

It is formulated for both tin-lead and lead-free solders on circuit boards and copper electrical wire.

Can I use this 135 flux on older tin-lead joints without damaging the board?

Yes, the lead-free compliant flux works with tin-lead alloys and leaves safe, non-corrosive residues.

More in Soldering Irons & Stations

Similar items