959T Soldering Flux 2oz Bottle, No Clean Lead Free

Great purchase! shipping was insanely fast! got them a day early! Not much can be said about the actual product as Kester brand is always top notch. i got both this 959T and the 186 for my needs and that will cover pretty much everything i do. BGA, SMD and through-hole (re)work.I don't use the nozzles that are included, i use acid brushes. but i did test them and they are ok, can be a bit overkill if you don't take your time. my best advice is use a brush.The only thing i wish the seller would do is carry some bigger size refills. hint hint... LOLTLDR;This stuff is great, it does what it is supposed to do and I've never had an issue with it.The seller was AWESOME! Shipping was Great. Great experience overall!

This 959T liquid flux is practical and handy due to its viscosity and applicator. It helps to supplement the included flux which is integrated into the solder. If you need additional flux to help the solder flow, then this 959T is good for general purpose soldering. I use it for larger joints when the pen flux is a little too runny, although the pen has its place also. It arrived quickly, was packaged well (no leakage), and the price was right. Plus the brand Kester is proven quality.

This flux works as expected, and doesn't leave the yellow/sticky residue like the 186 flux. I use the bottle to fill a flux pen (https://amzn.com/B01DCE4XRQ) for surface-mount soldering. Note that this flux is not quite as "strong" as 186, so it should only be used for new components.My only complaint is that it leaves a white residue on the PCB after cleaning the board with 99% IPA. However, this is more likely due to my cleaning technique.

Easy to use due to liquid formulation. It is a no clean solder, but I clean and excess anyway using isopropyl alcohol-saturated pads.

I've always used paste solder, basically torch and copper, but circuit soldering is a little more delicate and any paste is messy. I had never used this before, but from the description and others reviews this was a great option. I gave it a try. Very easy to use. As advertised, no mess and solder melts and sticks quickly. Before this product, my solder repair had been quite crude and had tended to melt sheathing or burn the board from holding the tip longer than needed because of oxidized surfaces. I have greatly improved my quality of work and have found myself looking for other gadgets around my house that need repaired or even modified.The needle tip of the bottle is precise for applying where you need it and it comes with a locking cap for when it is not in use. Simple twist the tip to interchange cap and application tip. Glad I found this product.

You know I don't know what I purchased here it doesn't behave like any soldering assistive paste or rosin that I've ever used it honestly smells like rubbing alcohol and it provides no etching that I can see or tell I tried all kinds of heat different solders different aplications it just doesn't even want to tin wire frankly

I saw this product used in an instructional video. I had no idea that flux could be so important; I have not made a cold solder joint since I started using it! Great stuff. If you do any amount of soldering at all, it's well worth it to pick some up...probably will last many years and eliminate so many headaches from bad solder joints.

When I wrote to the company to ask why the flux was so thin, they responded and informed me that that IS the idea behind the product and they asked me if I would be happier with a slightly thicker flux, would that suit my needs, and I said yes and they sent me a bottle of Kester 186! The 959T flux IS flux! About 5%, just know that it will be thin and will smell of isopropyl alcohol. But it does work, and is useful for certain work! Does leave a very small deposit of rosin after drying. I would buy from CML again.