IN STOCK TODAY - Exp. Date: Apr 02, 2019 (US format - month first)
The joy of saving couple of dollars may easily turn into grief due to outdated, repackaged or fake flux being sold on eBay pretending to be AMTECH - don't risk you time, money and short circuits due to bad flux - when you buy from an AMTECH trained reseller like us you are guaranteed to receive genuine product with fresh manufacturing date - strong flux with maximum shelf life for your best soldering results.
AMTECH Solder Flux is manufactured by Inventec in the USA - we are an authorized reseller offering FREE same day USA shipping and 30 days return guarantee. Please support this series of AMTECH flux - rate it!


- ROL0 flux classification (RO = Rosin-based, L = low activity, 0 = halide-free)
- Wide process window
- Excellent wetting compatibility on most board finishes
- Clear residue
- High temperature compatible
Compatible Alloys Liquidus Solidus
Sn42/Bi58 (Eutectic) 138°C 138°C
Sn43/Pb43/Bi14 163°C 144°C
Sn62/Pb36/Ag2 179°C 179°C
Sn62.8/Pb36.8/Ag0.4 183°C 179°C
Sn63/Pb37 (Eutectic) 183°C 183°C
Sn60/Pb40 188°C 183°C
Sn10/Pb88/Ag2 290°C 268°C


NC-559-V2-TF is formulated for syringe, stencil printing, and rework applications on all PCB surface finishes. NC-559-V2-TF may be used for BGA sphere attachment and reballing. NC-559-V2-TF is also designed to work on all flip chip bumping and chip scale packaging sites.


No-clean tacky flux that can be left on the board for many SMT assemblies. For applications requiring cleaning NC-559-V2-TF can be cleaned using commercially available flux residue removers such as INVENTEC Promoclean™ and Promosolv™ cleaning chemistries.

Storage and Handling

Tacky flux should be stored at room temperature (20-25 °C). Syringes and cartridges should be stored vertically with the dispensing tip down. Properly stored tacky flux has a 12-month shelf life.

Safety Notice

This product is designed for professional audience. 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 of AMTECH products 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.

Cross selling AMTECH products newly brought to eBay:

VS-213A-TF is the most recent and the most up-to-date no-clean tacky flux formulation by AMTECH. VS-213A-TF preforms at par with bestselling AMTECH no-clean ROL0 fluxes NC-559-ASM/V2, RMA-223 and SynTECH however it is uplifted with some highly desirable modern add-ons, missing from its grand counterparts - VS-213A-TF is REACH compliant, halogen-free and universal - supports both leaded and lead-free alloys.
VS-213A-TF boasts ultra-low voiding properties - the lowest among AMTECH no-clean ROL0 family, plus it retains all greatly admired AMTECH context - industrial wetting capabilities, optimal tack/viscosity, long lasting performance, clear residue, easy cleaning and signature AMTECH pine scent.
*NC-559-ASM/V2, RMA-223 and SynTECH require separate LF version to solder lead-free alloys.
AMTECH NC-559-ASM-TF - ROL0, No-clean, clear residue
AMTECH NC-559-V2-TF - ROL0, No-clean, clear residue
AMTECH NC-560-LF-TF - ROL0, No-clean, lead-free
AMTECH SynTECH-TF - ROL0, No-clean, clear residue
AMTECH RMA-223-TF - ROL0, No-clean, amber residue
AMTECH RMA-223-LF-TF - ROM1, No-clean, lead-free
NWS-4200-6-TF water-soluble tacky flux - meet the strongest flux in AMTECH's armory - ORH1 classification with extra 6% chlorides - used for industrial oxide-free soldering. NWS-4200-6-TF removes oxidation however it is highly corrosive itself - cleaning is paramaunt. Water-washable flux is in general easy to clean with warm (50°C) Deionized Water (DI) mixed with Isopropyl Alcohol (IPA) under pressure created with a regular 10cc syringe (30-50 PCI).
AMTECH Leaded Solder Paste
AMTECH Sn63/Pb37 (T3) No-clean Solder Paste (SynTECH) - 87% Metal, 25-45 microns, 35g syringe.
AMTECH Sn63/Pb37 (T4) No-clean Solder Paste (SynTECH-N) - 87% Metal, 20-38 microns, 35g syringe.
AMTECH Lead-free Solder Paste
AMTECH NC-559-ASM SAC305 (T4) No-clean Lead-free Solder Paste - 86% Metal, 20-38 microns, 35g syringe.
AMTECH Low-Temperature Lead-free Solder Paste
AMTECH NC-31 Sn42/Bi57.6/Ag0.4 (T4) No-clean Lead-free Low-temp Solder Paste - 87% Metal, 20-38 microns, 35g syringe.
AMTECH Core Wire
Popular leaded and lead-free alloys - eutectic Sn63/Pb37 and SAC305 both available for No-clean and Water-washable processes in different diameters. What makes this wire special is AMTECH flux in its core with proprietary poly(dendrimer) activator which is sufficient to solder to bare coper and hard to solder surfaces without any additional flux. Besides added activity this solder wire has very little splatter and delivers higher production yields / better ROI.
Sn63/Pb37 Liquidus/Solidus - 183°C (Eutectic)
AMTECH NC-61 Sn63/Pb37 2.2% No-clean Rosin core
AMTECH 4300 Sn63/Pb37 2.2% Water-washable Resin core
Sn96.5/Ag3.0/Cu0.5 (SAC305) Liquidus - 219°C / Solidus - 217°C
AMTECH NC-61 SAC305 2.2% Lead-free No-clean Rosin core
AMTECH 4300 SAC305 3.3% Lead-free Water-washable Resin core
AMTECH Accessories
AMTECH Pre-Saturated Cleaning Wipes - residue-free, plastic safe, shed-free cleaning cloth (the AMTECH way!) pre-saturated in isopropyl alcohol and deionized water (70% Isopropanol #67-63-0 and 30% Deionized Water) providing outstanding cleaning results.
More great AMTECH products are available from our eBay store