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REL0 flux classification - resin based, low activity water-washable tacky solder flux for professional/industrial use. Clear residue evaporates with hot air and doesn't short components. Universal - applicable for a syringe, stencil printing, rework, BGA sphere attachment and reballing using standard tin/lead alloys or lead-free metals. Halide-free (<0.05%)
Low viscosity - 20-48 (Malcom @ 10 RPM/25°C (x103mPa/s)). Compatible with leaded and/or lead-free alloy systems (up to 250°C/500°F). Surface insulation resistant. No copper mirror breakthrough. Low electrochemical migration (<1 decade drop no-clean). REACH compliant, meets and exceeds the most rigorous requirements and military/avionics specifications
Activated residue is clear and non-corrosive - can be left on board for multiple SMT assemblies (manufacturer recommends cleaning all flux residues at all times to avoid board contamination or voltage leakage on circuits with high impedance, also non-activated residue may absorb moisture from the air and subsequently cause corrosion).
Industrial air syringe is intended for pneumatic dispensing machines, the flux is trapped inside with a piston stopper - do not remove the piston as it seals the flux from the air. Do not discard original nozzle cap, tighten the cap inside the nozzle while not using the flux. Use supplied blunt metal dispensing tip and plunger to manually control the flow.
Genuine product made in the USA by AMTECH MANUFACTURING LLC. Every original shipment would include AMTECH Soldering Profiles card.
AMTECH 4300/LF-4300-TF universal tacky solder flux (REL0) 10cc