Qianli No-Clean Lead-Free Halogen-Free Soldering Flux Paste — 50g BGA Micro-Soldering Lab-Grade
No corrosive residue per Qianli spec. Odorless. Synthetic activator. BGA-ready.
Lab-grade no-clean flux for board-level phone repair. Qianli-stated synthetic activator breaks down at solder temperature. No chloride and no bromine in the formulation. RoHS lead-free per vendor declaration. Odorless during long bench sessions.
Brisbane Technical Hub
Forest Lake repair-parts specialist serving phone shops, micro-soldering techs and TAFE students. We use this exact flux on our own bench.
Authenticity Guaranteed
Genuine Qianli 50g pro-pack in sealed factory packaging. Synthetic activator system, RoHS lead-free certified, halogen-free verified.
Reliable Dispatch
Standard 2-4 business day ship in protective packaging. Tracked nationwide delivery on every order.
Why Halogen-Free Matters On A Phone Motherboard
Traditional rosin fluxes use chloride and bromide activators. They wick well but leave conductive ionic residue.
Synthetic Activator
Dicarboxylic acid plus amine salt activators break down completely at solder temperature. Nothing corrosive remains.
High Surface Resistance
No ionic residue means no leakage current between adjacent pads. Critical on Audio IC and Tristar charging IC lines.
Odorless Bench Use
Comfortable for long bench sessions in a well-ventilated workspace. Suits repair labs and classroom benches.
No-Clean Workflow
Skip the IPA cleanup step on most jobs. Critical near speakers, microphones and Face ID flex modules.
BGA Wettability
Even spread across BGA pad arrays. Predictable solder ball formation during reflow at 220-245°C.
RoHS Compliant
Lead-free and halogen-free per Qianli spec. Suits RoHS contract builds and refurb resale.
Who Uses Qianli Lead-Free Halogen-Free Flux?
Phone Repair Technicians
iPhone and Samsung shield-can re-fitting, USB-C port reflow, Lightning port reflow. Audio IC reflow and charging coil work.
Board-Level Micro-Soldering Pros
U2 charging IC, Tristar and Tigris IC swaps. NAND chip swap and A-series CPU reflow work.
Console Repair PS5 Xbox Switch
PS5 HDMI port reflow, Xbox APU corner-reflow, Nintendo Switch joycon and motherboard rework.
MacBook and Laptop Board Repair
USB-C port replacement, MagSafe DC-in board, charging IC swap. Cap and resistor replacement on logic boards.
SMD Rework and Small-Batch Assembly
Boutique PCB houses, breakout-board makers, prototype hardware shops needing RoHS-compliant builds.
Drone FPV and RC Hobby Repair
FPV drone ESC and FC board hot-air rework. Motor wire de-tinning and replacing burnt MOSFETs after a crash.
TV Monitor Power-Board Repair
Replacing bulged electrolytics on TV power supply boards, monitor backlight driver caps, panel-connector flex repair.
3D Printer and Smart-Home Tinkerers
RAMPS and SKR control board MOSFET replacement, extruder thermistor wire repair, ESP-based smart-home board fixes.
Smart Watch Wearable TWS Repair
Apple Watch flex-board work, AirPods board reflow, Galaxy Watch internal connector repairs, fitness-tracker board jobs.
TAFE Trade School Hobbyists
Odorless formula for electronics labs in well-ventilated workspaces. Beginner-friendly because mistakes are cleaner.
Vintage Audio and Hi-Fi Recapping
Recapping vintage tube and solid-state amps, synth boards, point-to-point chassis. Boutique caps deserve a clean flux.
RoHS-Spec Contract Builds
Halogen-free plus lead-free is a hard spec on RoHS contract assembly jobs.
How To Use — 6-Step Bench Workflow
Follow this sequence. Skipping a step is the top reason a flux job goes wrong.
STEP 1 — Stir Before Use
Synthetic activators can settle on the shelf. Stir the jar for 10 seconds before each session.
STEP 2 — Clean The Pads First
Wipe the joint area with IPA and lint-free swab. Even no-clean flux cannot fix a contaminated pad.
STEP 3 — Apply A Small Dab
A pinhead-sized dot suits one SMD pad or 0603 component. Less is more, too much causes bridging.
STEP 4 — Set Iron Or Hot Air
Iron tip 320-360°C for leaded, 360-400°C for lead-free. Hot-air gun 320-380°C for SMD reflow.
STEP 5 — Reflow The Joint
Apply heat. Watch the flux bubble briefly then settle. The activator breaks down as solder melts.
STEP 6 — Optional Final Wipe
Truly no-clean. For refurb resale a quick IPA wipe lifts any cosmetic film. Not required for function.
Pro tip: Store the jar tightly sealed at room temperature, away from direct sunlight.
Common Mistakes And What This Flux Is NOT
Too much paste
A pinhead is enough per pad. Excess flux causes solder balling and bridging.
Iron too cold
Below 300°C the activators do not fully break down. Bubbling residue stays on the board.
NOT a substitute for solder paste
Solder paste contains tin spheres. This is flux only, pair with separate solder wire or paste.
NOT for solder removal
Use desoldering wick or a solder pump. Flux assists wicking, not removes solder by itself.
Less aggressive than RMA leaded
For 30-year-old heavily oxidised joints, an aggressive leaded RMA paste may wet faster.
NOT for BGA reballing alone
Reballing needs solder spheres and a stencil. The flux assists the reflow only.
Full Technical Specifications
Brand
Qianli
Product Type
No-clean soldering flux paste
Net Weight
50 g pro-pack
Lead Content
Lead-free, RoHS compliant
Halogen Content
Halogen-free, no chloride or bromine
Activator Type
Synthetic dicarboxylic acid plus amine salt
Residue
No-clean, non-corrosive residue per spec
Odour
Odorless during use
Surface Insulation
High, no leakage current between pads
Working Temp Iron
320-400°C iron tip
Working Temp Hot Air
320-380°C hot air gun
Compatible Solder
Lead-free SAC305 plus leaded Sn63/Pb37
Applications
BGA rework, IC reflow, micro-soldering, PCB repair
Compatible Devices
iPhone, Samsung, iPad, MacBook, PS5, Xbox, Switch, drones
Skill Level
Beginner-friendly to professional
Storage
Room temperature, sealed, away from sunlight
Packaging
Sealed Qianli 50g jar pro-pack
Warranty
7-day DOA replacement only
Dispatch
2-4 business days from Forest Lake QLD
Qianli Halogen-Free vs Traditional Rosin Flux
Side-by-side comparison of the synthetic-activator formulation against generic chloride-activated rosin paste.
Shipping Information
Forest Lake Dispatch
- Ships within 2-4 business days.
- Bubble-wrap protected packaging.
- Tracked Australia wide delivery.
Delivery Times
- Brisbane metro 1-3 business days.
- Sydney and Melbourne 3-5 business days.
- Regional and remote 5-7 business days.
Visit us at Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078. Open Mon-Fri 9am-5pm and Sat 10am-5pm.
Pay your way — Afterpay and Klarna available at checkout.
Repair Expert FAQ
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JPC Mobile Quality Seal
Genuine Qianli 50g pro-pack in sealed factory packaging. Dispatched in 2-4 business days from real Brisbane stock.
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Shipping & Processing Information
Processing Time
All orders require 2-4 business days for processing, regardless of shipping method.
This includes order verification, picking, packing and preparation for dispatch.
You will receive tracking information for all shipped orders and notification when pickup orders are ready for collection.
Shipping Methods
Standard: 3-7 business days in transit after processing
Express: 1-2 business days in transit after processing
Express shipping only affects delivery time once dispatched, not processing time.
Express shipping does not expedite the 2-4 business day processing time.