copper pipe soldering?

Question

I have one of those kits called dutch boy to solder a few copper plumbing pipes together. About how long does it usually take for the copper pipe to be hot enough to meld the solder upon contact? I held a light blue flame right up against that fricken copper pipe for 4 minutes and the solder still did not react to it. Not until I hit it directly with the flame, then it just ran down the outside of the pipe.

Also, how do you know when a pipe is fully solder or not? If it leaks?

Answer 1

clean pipe (sandpaper) , apply flux , heat pipe with propane torch (less than minute) , touch solder to side opposite the flame .solder flows toward the heat . you did shut off water and drain pipe first ? if water drips through , stuff pipe with bread till done soldering then flush out later . good luck .

Answer 2

Use a silver bearing solder such as Dynaflow with 5% SILVER .
No flux required as long as it is a copper to copper connection.
Use sanding cloth not sandpaper to clean your joints.
This solder will flow around 1100 degrees and will flow towards the heat.
Experience and time will tell if your joint was good.

Answer 3

be certain you warmth the setting up, no longer the pipe that is going into the setting up. Assuming which you have applicable wiped clean the pipe and the setting up, utilized flux, and have not have been given any water in the pipe, all you pick do is to warmth the setting up warm adequate so once you practice the solder to the choice ingredient it melts. Capillary action and the warmth will draw the solder into the joint. you is probably no longer heating the setting up warm adequate.

Answer 4

Don't know Dutch boy, I use MAPP gas to solder copper, burns hotter than propane. If using propane, it takes a while to get hot enough.

Answer 5

Railroad dave is the man, do as he suggests.