Trains.com

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Liquid solder - no solder gun

4028 views
7 replies
1 rating 2 rating 3 rating 4 rating 5 rating
PED
  • Member since
    April 2016
  • 571 posts
Liquid solder - no solder gun
Posted by PED on Monday, December 10, 2018 9:32 AM

Does a liquid solder/glue exist that is conductive in low voltage circuits? I occassionally run into a situation where something like this would be very handy in lieu of using a traditional solder gun and solder.

Or, as an alternative...a liquid/paste solder that can be applied to a joint and then hit with a soldering iron to lock it into place.

Side note....I know how to solder very well but I have shaky hands and I sometimes would like an alternative to traditional solder 

Paul D

N scale Washita and Santa Fe Railroad
Southern Oklahoma circa late 70's

  • Member since
    May 2010
  • From: SE. WI.
  • 8,253 posts
Posted by mbinsewi on Monday, December 10, 2018 9:43 AM

I don't have a picture handy, but Google silver bearing soldering paste.  I've used it, recomended to me by a member in here, Frank (Zstrip).

Mike.

  • Member since
    July 2006
  • From: Pittsburgh, PA
  • 1,796 posts
Posted by JoeinPA on Monday, December 10, 2018 9:53 AM

One source for solder paste is MicrMark: https://www.micromark.com/Silver-Bearing-Solder-7-1-Grams .

Joe

PED
  • Member since
    April 2016
  • 571 posts
Posted by PED on Monday, December 10, 2018 10:31 AM

Thanks. I think that silver solder paste will do what I want.

Paul D

N scale Washita and Santa Fe Railroad
Southern Oklahoma circa late 70's

  • Member since
    May 2004
  • 7,500 posts
Posted by 7j43k on Monday, December 10, 2018 10:37 AM

PED

Does a liquid solder/glue exist that is conductive in low voltage circuits?

 

 

Yes.  I searched for "conductive epoxy" and found this, very quickly:

https://www.amazon.com/MG-Chemicals-Two-Part-Conductive-Adhesive/dp/B008UH4DB2

If you have another favorite "sticky substance", just do a search for it including the word "conductive".

Or, as an alternative...a liquid/paste solder that can be applied to a joint and then hit with a soldering iron to lock it into place.

Side note....I know how to solder very well but I have shaky hands and I sometimes would like an alternative to traditional solder 

 

 

The same holds for "solder paste" (which is normally a goo made up of solder and flux).  I just did a search for that, and it's HIGHLY available.  There's various versions, such as the old standard tin/lead, and there's lead free.  Yuk.

 

Anyway, there's plenty out there for you to try out.  I recommend a bit of practice before you use it for real.

 

Oh, yes:  another way to spend your money.  I have a resistance soldering rig.  What's neat about this is that you can use it to hold things together before heating them up.  For example, I can use it to hold a wire onto a rail, hit the heat switch and apply solder, turn it off (quickly), wait a second and I'm done.  All the while, my "holding" hand is just pushing the probe.  And my soldering hand is available to apply solder.  Thus, I don't need a third hand.  Which I do not have.

 

Ed

PED
  • Member since
    April 2016
  • 571 posts
Posted by PED on Monday, December 10, 2018 10:50 AM

Silver epoxy seems a bit more pricy than the silver solder paste so I will try the silver paste first.

I also have a resistance soldering rig from MicroMart and it works well ...especially at attaching feeders to track. However, it would probably fry some of the very small connections I have in mind.

Paul D

N scale Washita and Santa Fe Railroad
Southern Oklahoma circa late 70's

  • Member since
    January 2006
  • From: Northeast OH
  • 2,268 posts
Posted by NeO6874 on Monday, December 10, 2018 10:58 AM

Solder paste is great for "I need this to be tacky until I can melt it" applications -- but if you're looking for a "no heat" solution, it should not be used, as the volatiles will flash off in about 48-72 hours, and then you're left with lead dust all over the table.

If you're doing things like resistor wheelsets, or similar "I can't use heat" applications, conductive paint or similar is the correct approach.

-Dan

Builder of Bowser steam! Railimages Site

  • Member since
    October 2006
  • From: Western, MA
  • 8,571 posts
Posted by richg1998 on Friday, December 14, 2018 11:38 AM

All I can say is I have use solder paste and use a Weller WLC-100 solder station with fine tip point. I hold the pencil iron with both hands as I can shake and hit the solder paste quickly. The paste liquickfies fast. Done. Takes some practice. I use to keep my elbows against my waist.

Rich

If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.

Subscriber & Member Login

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Users Online

There are no community member online

Search the Community

ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
Model Railroader Newsletter See all
Sign up for our FREE e-newsletter and get model railroad news in your inbox!