ASM-TF universal no-clean tacky soldering flux for hand-soldering and

STIRRI® ASM-TF™ is a high-performance, no-clean tacky soldering flux engineered for both leaded and lead-free solder applications. This versatile flux is ideal for a broad range of soldering processes, including manual hand-soldering and automated assembly lines utilizing pneumatic dispensers, solder paste printers, and reflow ovens.

Featuring an RMA-grade performance, ASM-TF™ boasts an optimal viscosity and a light, creamy flux body leaving a clear, benign residue that can be reliably left on the board, eliminating the need for post-soldering cleaning in many applications. For situations requiring residue removal, it is easily cleaned with common solvents such as isopropanol (IPA), acetone, or industrial no-clean solvents. Optimal cleaning results are achieved when the Printed Circuit Board (PCB) is still warm. Cleaning is recommended for cosmetic reasons and to avoid voltage leakage on circuits with high impedance.

Classified as ROL0, this flux provides a truly no-clean residue and an odorless formulation, enhancing workplace safety and comfort. It incorporates QC-Aid™ technology, enabling instant visual Quality Control (QC) certification through UV light inspection.

STIRRI® ASM-TF™ exhibits low electrochemical migration and excellent surface insulation resistance, ensuring long-term reliability of soldered joints. Its superior performance makes it an outstanding choice for repair and rework operations, consistently delivering exceptional results across most surface finishes and with all popular soldering methods and techniques.

Suitability

Automated soldering machines, BGA, hand-soldering, hot air rework

Designation

ROL0 classification - no-clean and not corrosive. Halide-free (<0.05%). Surface insulation resistant. No copper mirror breakthrough. Low electrochemical migration (<1 decade drop)

Viscosity

42-54 mPa/s (Malcom @ 10 RPM/25ºC (x 10³mPa/s))

Disclaimer

The information contained herein is based on technical data that we believe to be reliable and is intended for use by persons having relevant skills at their own risk. Consumers should make their own tests to determine the suitability of each product for their particular process and take safety measures. Manufacturer/resellers assume no liability for results obtained or damages incurred through the application of the data presented.

Cleaning "No-Clean"

“No-clean” indicates cleaning method as defined by IPC standard and does not mean that the flux leaves no residue. No-clean rather means that the flux can be left on PCB for several consecutive SMT assemblies but also won’t cause corrosion if left indefinitely. However, cleaning can be necessary and it is desirable. No-clean fluxes are easily removed using industrial solvents in ultrasonic devices or using commercially available flux residue removers like STIRRI HydraSweep™.

Dispensing Kit

This product does not include any Dispensing Kit - a separate purchase!

Dispensing Kit is an add-on for manual dispensing, used to create a pressure with a plunger similarly to a medical syringe.

Air syringes intended for pneumatic dispensing machines use a piston stopper instead of a plunger. Do not remove the piston as it delivers the best seal preventing contact with air!

Liquid-proof the assembly with Nano-Coating - dries in less than 8 seconds

STIRRI HydraCoat™ is a liquid repellent making PCB liquid proof, instantly improving assembly value!

With an impressive droplet contact angle of over 113º, this nonconducting solution creates an invisible hydrophobic shield repelling weather, humidity, moisture - coated PCB continues to function even when fully submerged!

Broadly suited for consumer devices, automotive circuits, urban and landscaping lightning, LED, medical or electronic devices, marine, boating and yachting industries.

Dry to touch in less than 8 seconds, self cures in 24 hrs or 10 min in 60ºC chamber.

STIRRI's Conformal nano-coating ensures end-customer satisfaction while virtually eliminating assembly claims due to environmental or consumer liquid damages.

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