Chemtronics CW8300, CircuitWorks Water Soluble Flux Pen
Chemtronics CW8300 CircuitWorks Water Soluble Flux Pen
The Chemtronics CW8300 CircuitWorks Water Soluble Flux Pen delivers precise, controlled application of neutral pH organic water soluble flux directly to PCBs, heat sinks, chip carriers, switches, sockets, and other electronic assemblies. The pen format eliminates the waste and mess of traditional flux bottles, enabling spot application exactly where needed. The neutral pH organic formula provides high activity flux with instant wetting action for thorough deoxidation of metallic surfaces — producing clean, well-wetted solder joints in hand soldering and rework operations. Residues clean easily with water, reducing cleaning cost and process complexity. Fast drying and fully portable for bench, field, and production use.
9g (0.32 oz.) pen | Water soluble | Cleans with water
Industries & Applications
- PCB Hand Soldering & Rework — Precise spot application of water soluble flux to through-hole and SMD pads for hand soldering, touch-up, and component replacement
- Electronics Manufacturing (EMS / OEM) — Production line flux application where water-wash cleaning processes are already in use
- Prototype & R&D Labs — Controlled flux application during board bring-up, design iteration, and prototype assembly
- Depot & Field Repair — Portable pen format for field service technicians performing board-level solder repairs
- Wire & Terminal Soldering — Application to wire ends, terminals, and connector pins prior to tinning or soldering
Key Features
- Neutral pH organic water soluble flux — compatible with most solder masks
- High activity formula — instant wetting, thorough deoxidation of metallic surfaces
- Cleans easily with water — reduces cleaning cost vs. solvent-based flux
- Precision pen tip — controlled, exact application with minimal waste
- Fast drying — ready to solder quickly after application
- Fully portable — no dispensing equipment required
- Compatible with PCBs, heat sinks, chip carriers, switches, sockets, and more
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | CW8300 |
| Manufacturer | Chemtronics / CircuitWorks |
| Flux Type | Water Soluble (ORM-D organic) |
| pH | Neutral |
| Net Weight | 9g (0.32 oz.) |
| Format | Dispensing pen |
| Cleaning Method | Water wash |
| Drying | Fast drying |
| Compatibility | Most solder masks, PCBs, heat sinks, chip carriers |
| SKU | CW8300 |
CircuitWorks Flux Pen Comparison
| Product | Flux Type | Cleaning Method | Best For |
|---|---|---|---|
| CW8300 | Water Soluble | Water wash | High activity, water-wash process lines |
| CW8100 | No-Clean | No cleaning required | Applications where residue removal isn't feasible |
| CW8200 | Rosin (RMA) | Solvent or water | Traditional rosin flux rework |
Frequently Asked Questions
What type of flux is in the CW8300?
The CW8300 contains a neutral pH organic water soluble flux. It is a high-activity flux compatible with most solder masks, designed for applications where post-solder water washing is part of the cleaning process.
Does the CW8300 residue need to be cleaned?
Yes — water soluble flux residues are hygroscopic and should be cleaned after soldering. The CW8300 residue cleans easily with water, making it well-suited for assembly lines with existing water-wash cleaning equipment.
What surfaces is the CW8300 compatible with?
The CW8300 is compatible with most solder mask materials and can be applied to PCBs, heat sinks, chip carriers, switches, sockets, wire ends, and terminals. Verify compatibility with specific solder mask formulations if required for your process.
What is the difference between CW8300 and a no-clean flux pen?
The CW8300 is a water soluble flux that requires post-solder water washing. No-clean flux pens (such as the CW8100) leave residues that are safe to leave in place. Choose water soluble flux when high activity and clean boards are required and a water-wash process is available. Choose no-clean when cleaning is not possible or practical.
How much flux does the CW8300 pen contain?
The CW8300 pen contains 9g (0.32 oz.) of flux. Contact MTE Solutions at 651.600.3838 or sales@mtesolutionsinc.com for volume pricing on multi-pack orders.
