Review: Solder from Fasttech (avoid)

Recently, I purchased two different roles of solder from Fasttech. I felt like I should warn you guys so that you do not make the same mistake.
Telecore Plus 0.6mm Solder
0.3mm Solder Wire

After having a lot of difficulty using this solder, with and without external flux, I decided to do a series of comparison tests against “domestic” (U.S. manufactured) solder, of both 60/40 and 63/37 variety. This solder absolutely does not perform or look like other similar solder I have used. It does not flow well, and joints are always dull/crystallized looking when compared to my other 63/37 solder when used on the same pieces under the same conditions. After you flow the solder, it is almost impossible to rework or remove. I am disappointed in this solder and am only going to use it to join twisted wires and in other “non-critical” applications.

I guess as the old saying goes, you get what you pay for. I wasn’t expecting anything “world class”, but this really is deceptive and quite frankly almost unusable.

Thanks for the heads up and taking the bullet on this one for the rest of us. ;)

I am also leery about the dirt cheap solder paste they sell.

Good solder paste(non US),best options?

Really thanks for sharing. I was considering of buying a soldering iron soon (either on fasttech or brick and mortar) and purchase the solder wire on fasttech.

you just saved me wait time, time to figure what was going wrong when soldering and the frustration while using that sub par product!

+1

I will try and post some pictures tonight to show you what I mean, but they cannot begin to express the frustration I experienced when trying to use this solder.

I guess the solder paste is just as bad as their normal solder.
Bad solder can make a simple task quite painful, not worth the trouble in my opinion. Doesn’t always have to be Stannol (don’t know about premium solder brands overseas ), but some decent quality solder can save much trouble (and is the key to tricky soldering maneuvers ;-)).
I can see how the high price for a 250g spool is repellant at first, but it will last for quite some years. (And maybe even a 100g one will do if you can find one.)

I am confident more than one frustrating soldering experience shared in this forum is the fault of bad quality material. :slight_smile:

I had the exact same experience with inexpensive eBay solder shipped from China. It was unusable IMO.

I went back to using Radioshack solder. The difference is huge.

From what I’ve read on site, Kester and Chip Quick solder paste are very good. I just purchased one called Multicore, that I haven’t heard anyone mention. I took a chance on it from a reliable dealer. It’s melting temp. (179°C) is lower than both Kester and Chip Quick. I believe it is distributed by Loctite. I have only reflowed a couple LEDs with it, and it seems very good. Goes from grey, to nice shiny silver. It is priced along the lines of the quality pastes, a few dollars more.
I tried that mechanics paste from FT. I don’t know what temp it melts at, (someone said it’s not much different than reg. solder), but I tried it in a frying pan to fuse two copper rounds together. It never turns silver, just stays flat grey in color.

Solder paste I don't know..... but all my electronic tech friends have always sworn by Radio Shack solder .

I bought the bigger roll a few months back ..More than I'll use in this lifetime

Good U.S. Solder Brands:

Kester
Alpha Metals
Multicore (Henkel)
Indium

There are others, but I stick with the four above. They all make excellent Wire Solder and Paste. My personal preference is Alpha, but they are all very comparable.

Leave it to china to screw up simple 63/37 solder.

Care to guess which one was done with the FT solder? (the other two were done with U.S. 60/40 & 63/37)

I’m glad you mentioned Multicore. I was hesitant at first, because the tube is labeled as “solder cream”. I had never heard of it, but took a chance after reading the specs.

Interesting thread thanks guys.

I was planning to order some solder paste from Fastech but now I may have to look locally.

I found this product in a local electronics store but was interested to read the description that says it must be refrigerated and has a shelf life of six months at 4°C.

Has anyone heard of this before?

http://www.jaycar.com.au/productView.asp?ID=NS3046


Yes, 6 months is the normal shelf life for solder paste if refrigerated.
It might be useful some time after that, but as the flux degrades it gets less and less fun and will be useless eventually.

I also bought some of that Telecore solder months ago when I misplaced my better role. I also don’t seem to have any better luck with it, guess I’ll also stop using it now that you’ve pointed this out. Much appreciate the head’s up on this.

Hey guys. Does anyone have a good source for electronics-compatible solder wire?

Based on the above discussion, it appears I want 63/37 from one of the following manufacturers:

  • Kester
  • Alpha Metals
  • Multicore (Henkel)
  • Indium

I just ordered this so I have something on the way. Does anyone recommend a different wire product or source for flashlight work and such?

I have ordered china-made solders and had good results.
Or well, at least its easy to use and gives better looking finish than in those pics…

I bought something really cheap from eBay, looked like this : https://www.fasttech.com/products/0/10001013/1385600-wlxy-06mm-solder-wire-74g

Is it possible, that those “bad” solders are just the normal Lead-free Eco-solder?
I know some electronics nowadays are hard to unsolder because of this new solder type but old 63/37 wirks very well.