Best Deals Right Now

QUIMTECH Liquid Solder Flux Review: Reliable, Low-Residue Flux for Precision Soldering

QUIMTECH Liquid Solder Flux (30 ml) I Liquid Solder Flux I Soldering Flux I Electrical Solder I No Clean Liquid Flux I Rosin Flux I Soldering Flux for Electronics I Lead Free Liquid Solder I
4.7
[High-Purity Rosin Flux]  Advanced RMA formula, RoHS-compliant and eco-friendly for reliable electronic soldering.
[Multi-Metal Compatibility]  Effectively removes oxides on tin-lead, lead-free, gold, silver, and copper alloys.
[Superior Wettability & Low Residue]  Excellent immersion and wetting produce strong solder joints with minimal residues.
[Non-Corrosive Neutral pH]  Neutral pH formulation prevents corrosion; safe for circuit boards and long-term reliability.
[Non-Toxic Chemical-Free Formula]  Organic, low-volatility flux free of lead, zinc chloride, and ammonium chloride; no irritant smell.
Show More

Soldering consumable designed to create clean, reliable joints for electronics, QUIMTECH Liquid Solder Flux. Peace of mind for hobbyists and repair technicians who need precise, low-residue soldering. Is a 30 ml bottle the right fit for your workshop?

⚡ At a Glance
  • Wetting Performance: Excellent immersion and wettability for small, precision joints
  • Best for: Hobbyists and repair technicians working on small electronic boards
  • Not ideal for: Heavy industrial production runs requiring large-volume packaging

High-purity rosin, mildly activated liquid flux removes oxides from common electronic alloys. Neutral pH and low-volatility formula leaves non-conductive, low-residue deposits.


Precise Small-Scale Soldering - With high-purity rosin mildly activated formula

High-purity rosin formulation is mildly activated and formulated to remove oxides on tin-lead, lead-free, gold, silver and copper alloys, improving solder wetting. Low volatility and stable chemistry maintain consistent flow during detailed work.

Fine control over solder flow allows accurate detail soldering with only a tiny amount, ideal for small pads and delicate components.

Non-corrosive Residues - Thanks to neutral pH and rosin insulation

Neutral pH means no corrosive by-products after soldering and rosin residues are non-conductive when dry, so metal surfaces and circuit boards remain protected. The formula is RoHS compliant and free of zinc chloride and ammonium chloride.

Safe residues reduce long-term risk to boards, so cleaned or uncleaned joints remain reliable for repair and hobby projects.

Reliable Rework and Reflow Performance - With anti-oxidation, high-boiling components

High-boiling components provide oxidation resistance during soldering, desoldering, rework and reflow cycles, producing stable wetting and shiny joints. The formulation emphasises good immersion and consistent technical behaviour under heat.

Solder joints tend to look smooth and uniform, making rework simpler and reducing the chance of repeat soldering.

✨ The 4 Key Reasons for QUIMTECH Liquid Solder Flux
  1. High-purity rosin formula - Produces consistent solder flow and clean joint surfaces
  2. RoHS-compliant and lead-free - Suitable for modern electronics and regulation-sensitive work
  3. Low volatility, no irritant smell - Comfortable to use during longer soldering sessions
  4. 30 ml single container - Handy size for hobbyists and bench repairs without excess waste
📋 Technical Details at a Glance
  • Category: Home Improvement
  • Brand: QUIMTECH
  • Net Volume: 30 ml
  • Formula Type: High-purity rosin, mildly activated liquid flux
  • Compliance: RoHS compliant
❓ Frequently Asked Questions

Q: Is this flux suitable for lead-free soldering?

A: Yes, the formula is effective on lead-free alloys as well as tin-lead, gold, silver and copper alloys.

Q: Will the flux corrode circuit boards after soldering?

A: No, neutral pH and rosin residues that are non-conductive when dry mean no corrosive action on metal surfaces such as PCBs.

Q: How much flux is included and is it easy to use?

A: One 30 ml container is included and user reports note that only a tiny amount is required for effective solder flow, making the liquid easy to apply accurately.

🏆 Our Verdict

Best suited for hobbyists and repair technicians needing accurate, low-residue soldering on small electronics. High-purity, mildly activated rosin chemistry and neutral pH produce reliable, non-corrosive joints and good rework performance. The 30 ml bottle is a practical, low-waste option that delivers solid long-term value for light to moderate use.