STIRRI-LF-HF-TF next generation lead-free halogen-free no-clean ultra-low low-voiding soldering tacky paste flux with pin-testable residue. Optimized viscosity - smooth flow from the syringe. Excellent tackiness - ability to hold components in place. Clear residue is fully translucent allowing unobstructed control over the soldering process. Contains QC-Aid™ optical tracer for instant visual QC inspection. The flux has a pleasant non-chemical scent. REACH-compliant making soldering incredibly easy and fun without harming the environment or human health.

STIRRI soldering tacky paste flux signature properties

TACK & VISCOSITY: Contains sufficient amount of solids to stay put on the PCB - doesn’t spread over, but also not too thick - easy to clean. Holds components in-place yet allows for an easy repositioning by hot air. Smooth flow from the syringe - suitable for industrial component placement machines as well as handcraft rework and hobby use. Suspends BGA spheres creating a perfect activation environment for soldering leaded or lead-free solder balls or SMD solder paste - all-purpose flux!

CLARITY & ODOR: Clear residue contains QC-Aid for instant PCB contamination inspection - the aid will glow in UV highlighting remaining residues for instant spot-cleaning. QC-Aid - Everyone can QC!™.  Cloud-free translucent material provides for a consistent unobstructed view of solder joints and IC pins while offering ultimate control over the soldering process and filling the air with pleasant non-chemical scent. Quick fix without fumes extractor will only make a workshop smell nice! 

LONGEVITY & RESIDUE: Maintains stable performance under extended exposure to heat without turning into a dark gooey goop. Suitable for multi-step assembly - get back to a project a day or two later, once heated the flux will flow again without dropping performance. Dispensed in an amber syringes protecting the flux from the harms of environment extending the shelf life up to 2 years - a single tube lasts for a very long time!

EASY SOLDERING & DESOLDERING: Implements upgraded booster for copper ions, visually noticeable while wicking the workspace regardless of the alloy leaded or lead-free. Instant action - quickly wets lead-free or leaded alloys delivering perfect shining joints. Clear residue can be easily removed by hot air, foam swab or HydraSweep Isopropanol. 

Complete the assembly with STIRRI HydraCoat™ conformal nano-coating. HydraCoat shields the assembly in 8 seconds. PCB continues to work even if fully submerged!