La-Co 22107 Regular Soldering Flux Paste, 1lbs

I am torch soldering copper jewelry with safety silv 45, I tried two types of fluxes before I found this one, one was 10+ years old and no good, the other was extremely overpriced from the jewelry making section of a craft store and gave the same results. I thought I was doing something wrong, until I tried this one. This works perfectly, and I can't believe how cheap it is. I was shocked that it worked, because I read somewhere on here that it wasn't for silver, but it worked just fine with my silver solder on copper. It makes the metal flow right into place. Be sure to wash it off of any copper it comes into contact with when you are done. I made the mistake of getting it on one of my copper bracelets as I was working and didn't notice untill hours later, now it needs a good cleaning and polishing.Attached is an image of a ring I soldered using this, the metal flowed right into the cracks where it is supposed to be and the joint can barely be seen.

I rarely write reviews but i was so happy about this product i had to, I didn't know whether or not this flux* would work for electrical wires but i tried it anyways, it has no odor at all when you apply heat( at room temp it kinda smells like a mint chap stick(but dont use it on your lips!), it seems to be non-toxic like the packaging says it is, its extremely cheap compared to other brands i seen on amazon, i definitely will buy this again after i run out, which isn't going to be for a long time since it comes with so much! It's such a relief finding a solder than doesn't make you feel like you're getting toxic fumes pumped in your face. SO HAPPY! ( the photos are from start to finish of how it beads on to the wire)

I do a bit of occasional soldering on both large and small projects. If you properly tin your iron and wires and cover them in a small amount of flux, this flux generally does the job. It's easy to clean up, doesn't smell horrible and generally works.

This is a great product. I was able to quickly solder strong electrical connections.

As described

I bought this because I heard it was good for electronics and it is.I mixed a bit with MG rosin flux and it makes it even better.( am not recommending anyone mix this with anything else)It does turn black if you use a lot of heat but it works and it's cheap.I never have used Amtex or any other paste flux, so I can't compare it to anything other than plain rosin.(I do not recommend anyone mix this with anything else)I find the combination does a good job.

It’s what I needed for a handmade lampshade repair.

UPDATE 10/23/2019:I TRIED TO USE THIS FLUX TO SOLDER A DCHDMI RIBBON CABLE ONTO A DC MOTHERBOARD, AND EVEN THOUGH THE SOLDERING JOB APPEARED SATISFACTORY, I COULD NOT GET A PICTURE.I ORDERED A NEW DC MOTHERBOARD, NEW DCHDMI RIBBONS, ETC. AND I COULD NOT GET ANYTHING TO DISPLAY. I SWITCHED MY SOLDER AND FLUX (MG CHEMICALS PASTE) AND THE DCHMI CAME UP NO PROBLEM. JUST TO MAKE SURE I WASNT MAD, I TRIED TO SOLDER ANOTHER DCHDMI RIBBON CABLE ON A COMPLETELY DIFFERENT DC MOTHERBOARD AND AGAIN, IT TURNED ON FIRST TIME WITH NO REWORKING.BOTTOM LINE: THIS FLUX BECOMES CONDUCTIVE FROM HEATING OR IS CONDUCTIVE FROM THE START. ITS ALSO NOT EASY TO CLEAN WITHOUT DOUSING YOUR BOARD IN DI WATER!!!!DO NOT USE THIS FLUX FOR SMD/Circuits/PCB soldering. THIS FLUX BECOMES CONDUCTIVE AND DOES NOT CLEAN AWAY EASILLY IF IT GETS UNDER an IC/COMPONENT THATS SOLDERED DOWN.I'm sure this flux is great for other purposes, but*****REPEAT***** DO NOT USE THIS FOR SMD/PCB SOLDERING.Thank you.Original review:This is hands down the best flux I've ever used for PCB soldering. I'm not joking. Its noticeably better. Just a dab on the IC pins and they suck up solder so easily.Another thing i've noticed is that this flux allows solder to bond with metal at lower temperatures (265 degrees) compared to other activated flux brands I've used.Downside is that when you heat it, it leaves a black residue that's easily wiped away with alcohol or chem wipes.

This is my first time using flux, I thought it worked well, I'm no expert to talk quality, but I'll have enough for my next 5 jobs in the lid alone! It looks like it's only 3/4 full, but I weighed it and it was 490-something grams with the container and lid, so I think it's fair to say that it is indeed one pound (454g) as advertised.

muy buen producto.

Products is good.but the amazon app is cheating.....

Was larger than i thought. Good value for the price. Awsome product.

They should put in their description only for copper tubing and industrial use, burnt up three chips as it's very corrosive for small copper microchip soldering joints.. it's not really their fault but I'm just warning people if they do look at this and your soldering electronics stay away..