MG Chemicals 8341, No-Clean Soldering Flux Paste, Case of 10 Syringes or Jars
MG Chemicals 8341, No-Clean Soldering Flux Paste, Case of 10 Syringes or Jars
MG Chemicals 8341 is a no-clean soldering flux paste formulated for lead-free alloys and compatible with conventional leaded solders. Made from a blend of rosin, thickener, and high-grade synthetically refined resin, it delivers fast and widespread wetting during soldering and leaves clear, non-conductive, non-tacky residues that do not require cleaning. Meets J-STD-004B ROL1 classification. RoHS compliant. Ideal for solder touch-ups, repairs, and rework of surface mount assemblies.
Available Formats
| Part # | Net Volume | Net Weight | Packaging |
|---|---|---|---|
| 8341-10ML | 10 mL | 9.80 g | Syringe (case of 10) |
| 8341-50ML | 50 mL | 49.0 g | Jar (case of 10) |
Key Features
- No-clean formula — clear, non-conductive, non-tacky post-solder residues; no cleaning required under normal conditions
- Lead-free and leaded compatible — works with SAC305, Sn63/Pb37, and other common alloys
- Excellent wettability — fast and widespread solder wetting for reliable joint formation
- Rosin/resin blend — tacky paste consistency holds components in place during assembly
- J-STD-004B ROL1 classified — meets IPC flux classification standard
- RoHS compliant — suitable for environmentally compliant assembly processes
- Syringe format — 10mL syringe for precise, controlled dispensing in rework and repair
Ideal Applications
- SMT rework and touch-up soldering
- Through-hole component soldering and repair
- Hand soldering with lead-free or leaded alloys
- Applying flux to specific pads or joints before reflow
- PCB repair and prototype assembly
Frequently Asked Questions
Does the residue from 8341 need to be cleaned after soldering?
No — 8341 is a no-clean flux paste. Post-solder residues are clear, non-conductive, and non-tacky, and do not require removal under normal assembly conditions. If cleaning is required for cosmetic or test reasons, consult the TDS for compatible cleaning agents.
Is 8341 compatible with lead-free soldering?
Yes — 8341 is specifically designed for lead-free alloys (such as SAC305) but also works well with conventional leaded solders like Sn63/Pb37, making it versatile for mixed-process environments.
What is the difference between the syringe and jar formats?
The 8341-10ML syringe (9.80g) is designed for precise, controlled dispensing in rework, repair, and fine-pitch applications. The 8341-50ML jar (49.0g) is better suited for higher-volume use where flux is applied by brush or spatula. Both contain the same 8341 formula.
What does J-STD-004B ROL1 classification mean?
J-STD-004B is the IPC standard for flux classification. ROL1 indicates a rosin-based flux (RO) with low (L) halide content, classified as activity level 1. This classification confirms the flux meets IPC requirements for electronics assembly and is suitable for use in IPC-compliant manufacturing processes.
