Chemtronics CW8100BLK50 CircuitWorks No Clean Flux Pen, 9g
Chemtronics CW8100BLK50 CircuitWorks No Clean Flux Pen — 9g
The CircuitWorks CW8100BLK50 No Clean Flux Pen delivers precise, controlled flux application directly to PCB pads, component leads, heat sinks, chip carriers, switches, and sockets. The pen-style dispenser eliminates excess flux waste and provides fast-drying, instant wetting action that thoroughly deoxidizes metallic surfaces for reliable hand soldering. The no-clean formulation leaves minimal residue that does not require post-solder cleaning under most conditions, simplifying the assembly process.
Key Specifications
- Part Number: CW8100BLK50
- Type: No clean flux dispensing pen
- Size: 9g
- Flux Type: Patented noncorrosive, halide-free, organic low-solids no-clean flux
- Compliance: Bellcore TR-NWT-000078, IPC SF-818 (surface insulation resistance)
- Residue: No-clean — minimal post-solder cleaning required
- Dry Time: Fast-drying
Applications
- Hand soldering on PCBs, component leads, and SMT pads
- Rework and repair flux application to specific areas
- Heat sink and chip carrier soldering
- Switch, socket, and connector re-tinning
- Precision spot flux application in production and field repair
Frequently Asked Questions
What is the difference between no-clean and rosin flux pens?
No-clean flux (CW8100BLK50) uses a low-solids organic formulation that leaves minimal residue not requiring removal under most conditions. Rosin flux leaves a higher-residue deposit that may require cleaning with a solvent. Choose no-clean for production environments where post-solder cleaning is not part of the process.
Does the CW8100BLK50 residue always need to be cleaned?
Under most conditions, no-clean residue can be left in place. However, for high-reliability assemblies, conformal coating applications, or sensitive circuitry, cleaning the residue per IPC guidelines is recommended. Always follow your assembly's cleaning specification.
Is the CW8100BLK50 halide-free?
Yes — the no-clean flux formulation is halide-free and noncorrosive, meeting Bellcore TR-NWT-000078 and IPC SF-818 for surface insulation resistance.
How do I activate the flux pen?
Press the pen tip firmly against the target surface to activate flux flow. Apply with light strokes directly to the area to be soldered. The fast-drying formulation begins working immediately upon contact.
What is the BLK50 designation in CW8100BLK50?
The BLK50 designation indicates the bulk 50-pack configuration. Individual no-clean flux pens are also available. The bulk pack is ideal for production environments, repair shops, and stocking multiple workstations.
