View Full Version : HobbyTalk Solder


hankster
12-02-2004, 12:13 PM
We are happy to announce that we will be carrying a new high quality solder. This 5-core (instead of the normal single core solder) military grade eutectic solder flows better then any 60/40 solder you have ever tried.

Eutectic solder is the only alloy combination that reverts from liquid to solid virtually instantaneously. The resulting crystal structure consists of fine equally-sized grains of alpha and beta (because they have had limited time to grow) with no evidence of potentially strength-reducing dendritic cores. This fine grain structure also maintains a high degree of electrical conductivity.

It will be sold in 0.81mm diameter and 1 pound spools. A 1 pound spool should last the normal racer a lifetime.

Price will be $17.95 (plus shipping) per 1 pound spool and is now available at http://www.hobbyshopper.com

hankster
12-02-2004, 01:22 PM
Shipping should come to $5.00 via USPS Priority

As an additional note on this solder:
This is a 5 core solder meaning that there are 5 small cores containing resin instead of one large one. This puts the resin closer to the surface and tends to evenly distribute the resin better.

More solder tech stuff:
There are regions where the alloy is 'pasty', in other words contains both liquid and solid phases. With normal 60/40 solder, crystals of composition beta will be forming whilst the rest of the alloy is still liquid. These crystals will grow into dendritic structures until such time as the alloy solidifies completely. Then the granular structure will consist of beta dendrite cores in a alpha crystal matrix. Because the alpha crystals form virtually instantaneously as the alloy temperature drops below 183°C they tend to be small. The resulting alloy is known as a coarse grained structure (large beta, small alpha) and tends to be mechanically weaker and a poorer conductor. It does have its uses however. A good example is plumber's solder. In this case electrical conductivity is not a criteria, and the extended pasty stage is advantageous for making 'wiped' joints.

katf1sh
12-02-2004, 06:20 PM
ygm great solder and a great price!

PITBULL
12-15-2004, 01:00 AM
I have put together a lot of battery packs over the years.This Eutetic solder for sale in the Hobby Shopper section was exactly what I was looking for.It flows into under and around the battery bars better than anything I have used so far.There is nothing worse than a battery bar coming loose.I actually fried a speedo when a battery bar popped loose because I thought the melting solder had flowed through and under the bar.With this solder its done right the first time.It flows like it says.Great product..!:thumbsup:

gezer2u
12-18-2004, 01:28 AM
I ordered a roll and it came to day. I placed the order on the 12-07 and it was shipped on 12-08. I got it today, 12-15. That's 7 days. In the confirmation email it said that it would take 2-9 days. It also said that it was mailed parcel post. If it was sent in an Express mail envelope then it wouldn't have been parcel post. I don't know what that has to do with the price of tea in China but it got here in 7 days. LOL
So, I would say Hanks service is top notch. Order a roll, because you will want more anyway :).

Ernie P.
12-22-2004, 05:28 AM
Hank; my solder order arrived yesterday. Thanks for getting it to me so quickly! The solder looks great. Ernie P. :cool:

hankster
12-22-2004, 09:44 AM
Great, thanks for letting me know and let us know how you like it.

bojo
12-22-2004, 06:31 PM
Hank best solder I have ever used.

Thanks

hankster
12-22-2004, 10:05 PM
bojo, That's what I like to hear!

Guess I'll clean up some of the other stuff from this thread as that has been solved.

bojo
12-23-2004, 06:43 AM
yes and I sent some to steve from TQ cells to try. mybe more sales. I am still thinking about the recorder mybe after xmass. I talk to a few that have them and thy love them. there is some much on the spool I can wrap presents with it LOL

happy hoildays
Ed B