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Your cart is empty.This zinc chloride flux is a paste that works great when soldering stained glass projects. Apply a small amount Ruby Flux to the foiled area of your stained glass project to insure proper adhesion of solder to glass. 2-ounce tub.
Marl J Bell
Reviewed in the United States on February 21, 2025
This stuff works great for soldering wires to XT60 and XT90 battery connectors. It helps tin the wire conductor without having to use excessive heat. I end up with nice, shiny, reliable solder joints.
Gerald S.
Reviewed in the United States on June 15, 2024
Helps clean and wet and metals to tin and adhere solder quickly with low dwell time. Use good heat and timely dwelling to keep from overheating work. Cleans easily with alcohol or water base chemicals. Some of the best flux money can buy! Made in Ohio!
GIANNI DE ANGELIS
Reviewed in Canada on June 20, 2023
It is flux and works
user
Reviewed in the United States on June 19, 2023
Overall the flux is much better than the cheap transparent-yellow one. But there are 2 downsides:1) The container is not easy to close. It's just annoying.2) The flux needs to be carefully removed after the soldering is done. I've got a crosstalk between 2 digital lines because I was lazy and did not remove it.
babu
Reviewed in Canada on November 4, 2020
Works really great, perfect soldering.
Mark Willmer
Reviewed in Australia on November 26, 2019
Works well i would recommend this product Thank you
M del D
Reviewed in Mexico on October 24, 2019
No soy experto en soldadura, soy un amateur, por lo que no puedo compararla con otras pastas, pero a mí me parece que cumple bien con su objetivo.
Derek O.
Reviewed in the United States on April 14, 2019
While I am giving it a 5 star review, I would like to issue a word of caution to those of you newbies who use this. Use it sparingly. You don't want to glob it on or else you'll end up leaving a gross sticky black paste after you're done soldering. Only a light coating. You should barely see any red at all when you use it. That's how light a coating you should use. It's also an extremely effective tip cleaner, though I would recommend only using it to clean homemade copper tips.
Sayyos
Reviewed in Mexico on April 14, 2019
Es una pasta muy buena, ya que limpia, protege y acondiciona los metales antes de soldarlos, llegó muy bien mi lata y sellada, es un flux confiable ya que tengo soldadura de varios tipos y la que no quería pegar, con este flux se derritió y pego muy bien.Saludos.
Benny
Reviewed in the United States on April 24, 2016
Very dangerous chemical. It is good, but if it gets on your hand and in your eye. Lookout. The smoke will even irritate them. Just wash your hands afterward. I got a speck in my eye from rubbing it and it hurt for two days. Put a red mark on my face too. I was reading about it and it is the same chemical they put on skin cancer to dissolve the tumor. So OK enough said.
kelby
Reviewed in the United States on August 7, 2015
This was very good flux. If you solder you know how it works. It was a dark red colour. It did become very runny upon applying heat but it was still just fine. the packaging was less than good. it was just a press fit cap. I can guarantee its going to pop open at some time and it will be a wasted product.it also doesn't come with any sort of application tool. therefore it gets a three star. i need to know that my enclosure will stay closed without having to give it its own personal shelf. If you are very organized and will keep this out of a bag or jumbled mess, your going to love the product and the price.
H. von Spaeth
Reviewed in the United States on July 24, 2015
Great for both small and large soldering jobs where you need a perfect solder joint. New (Plastic) container means, no more rust. Plastic also ensure easy opening/access which was the issue I had with the last metal container. I have purchased this same soldering flux paste for the past 15 years. It’s the same consistency and performs very nicely. Other than using it with micro circuits, it ideal for tinning thin and thick braided copper wire as well. Truthfully, I don’t know what I’d do without this product. Buy with confidence.
Cameron Pohl
Reviewed in the United States on June 12, 2015
I've just gotten into soldering, so I haven't used any other types of flux such as the pens, but I find this is very easy to work with and very effective. I use a toothpick to drop the flux onto contacts and to coat solder braid, which increases its effectiveness. One jar should last me quite a while and was very cheap compared to other fluxes.
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