Heat migration during soldering/ brazing

G

Greg Scott

Joined
Apr 1, 2012
Messages
8
I have been using a wet rag to try to minimize the migration of heat from the parts being soldered/brazed to areas of blade the heat is not wanted. Especially the coloring that takes place from heating. It has been relatively effective and does a so so job. However in the back of my mind I seem to remember an advertisement for a cream/grease that can be used. It was supposed to stop the heat from migrating past the point of application. Have any of you ever heard of or perhaps used this matieial.
 
Sure. It works well, but it doesn't last forever. In many cases you can't waste a lot of time before it dries out.
 
As a person who has seen these Heat Gel, Solder Paste, Heat Block, Thermo-gel, etc. for 40 years, I can say the they don't really work.

My favorite was a powder made from rock dust ( looked like the old asbestos powder we used to use). You mixed it into a paste and applied it to the area around the solder joint. Sure it kept the flame off these areas, but the heat conducted down the metal was insulated and stayed for a long time.
 
As a person who has seen these Heat Gel, Solder Paste, Heat Block, Thermo-gel, etc. for 40 years, I can say the they don't really work.

My favorite was a powder made from rock dust ( looked like the old asbestos powder we used to use). You mixed it into a paste and applied it to the area around the solder joint. Sure it kept the flame off these areas, but the heat conducted down the metal was insulated and stayed for a long time.
 
I used them at one of the jewelry repair shops I worked at to protect heat sensitive stones, once the water boiled out they became insulators. Wet paper towels worked better because you could easily rewet as needed

-Page
 
You must log in or register to reply here.
Back
Top