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Small white tube with 1.6 mm dispensing tip

COMPUTERSYSTEMS REPAIR SERVICES DATA REC

COMPUTERSYSTEMS REPAIR SERVICES DATA REC CS FLUX 5g halogen free lead free no clean soldering flux 1.6 mm tip

SKU CH-RMZ1-Y2TY7

Halogen-free, lead-free no-clean flux gel turns transparent when heated for clear microscope visibility during SMD microsoldering, dispensed precisely from a 1.6 mm tip

  • Product typeSoldering Flux
  • Turns transparent when heated so you can see pads and joints clearly under the microscope
  • Liquefies and wicks beneath components for uniform pad activation on fine-pitch ICs
  • Soft gel at room temperature lets you stage parts precisely before applying heat
  • No-clean, halogen-free, lead-free residue wipes away easily with isopropyl alcohol if needed
  • 6 mm tip dispenses tiny, controlled amounts to reduce mess and keep adjacent components visible

Halogen-free no-clean flux gel

CS FLUX is a halogen-free, lead-free, no-clean soldering flux formulated for SMD microsoldering. At room temperature it behaves as a soft, lightly tacky gel that helps stage components and jumpers before heat is applied. Under heat it liquefies, wicks beneath parts, and turns transparent for clear pad visibility. The 1.6 mm tip enables precise, low-pressure dosing for routine board repair and fine-pitch rework.

Thermal behaviour and residue

The gel liquefies and wicks under components during heating, promoting uniform pad activation without excess spread. It turns transparent at working temperature so wetting and fillets can be inspected under magnification. Residue remains thin and localized; when inspection or conformal coating is required, it can be removed with high-purity isopropyl alcohol without aggressive scrubbing. The formulation is non-corrosive and requires no mandatory cleaning step after soldering.

Replaces messy syringes and thick pastes

CS FLUX replaces fluxes that are too thick for hand dispensing and require pneumatic pumps or special tools. It eliminates the need for separate cleaning agents in no-clean workflows and avoids halogenated or leaded chemistries. The jump is worth it for technicians who need microscope-grade transparency, controlled gel-to-liquid transition, and a 1.6 mm tip that covers large footprints with minimal material. It is not for buyers who need high-volume automated dispensing systems or fluxes formulated for heavy industrial wave soldering.

How it compares

Measured against everything we stock in Soldering Irons & Stations, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 85% of the 802 comparable items (median $25.99).

Specifications

Product
Product typeSoldering Flux

Questions about this item

How do I apply the flux using the 1.6 mm tip, and what step do people often miss?

Press the tube gently to dispense a tiny amount of gel onto the pads or component leads; the step often missed is letting the flux turn fully transparent under heat before adding solder, which confirms it has liquefied and wicked beneath the part.

Will I need to clean the board afterwards, and what should I use if I do?

The flux is no-clean, so residue can stay on the board; if you plan conformal coating or want a pristine look, wipe with high-purity isopropyl alcohol and a lint-free swab — no aggressive scrubbing required.

At what point does the gel become too fluid to stay where I put it during a long rework session?

The flux liquefies and wicks aggressively once it reaches working temperature; on extended hot-air or IR-plate jobs it can spread beyond the target area, so apply sparingly and work in short heating cycles to keep it localized.

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