Question on Rosin Core solder use for casting

[chambers]

Has anyone used resin core solder this is 60% tin, 40% lead? Any issues? Range of price per pound? Come in 5 pound spools. Any market for this stuff?

[evan price]

IMHO unless you are paying scrap prices for it, it's too expensive to use for boolits. I use it for soldering stuff and it's not cheap.

[altheating]

I just paid $18.00 a roll for solder last week for a job, solder like most plumbing stuff has gone crazy.

[lwknight]

I bought some 63/37 rosin core solder on flea bay for $19.95 per 5 pound roll.
It worked out to about $6.00 per pound for the tin if the lead balance is counted at $1.00 per pound. That is cheap because tin is going for over $15.00 per pound right now.

If you can get the 5 pound spool delivered under 30 bucks then you are doing good. Its too expensive to make bullets from but its not expensive to use as a source of tin to help lead alloy cast better.

[cajun shooter]

I have found it at auction sales for a $1.00 per roll , but you had to buy all of them which was not a problem. I have purchased 63/37 for $3 a pound. You just have to keep your eyes and ears open. I have about 200 pounds of the 63/37 and showed it to my wife. I told her that if anything happens to me don't let anyone on the property that tells her it sells for a $1.00 a pound. Ha!! Ha!!

[Jim]

Rosin core solder is hollow and it has rosin in the core to act as flux in the soldering process, thus the name. Adding that to a pot of alloy can result in a very unpleasant experience. When the rosin melts and burns, it creates smoke and leaves a film of ash on the mix that has to be cleaned off.
It most certainly can be used to alloy your mix, just be prepared for the smoke and ash issue.

[WildmanJack]

Sorry guys, I bought 60 pounds for .30 a pound at a scrap yard and it was all cut into 8 inch pieces and stacked in a couple of boxes. Sizzles a bit and smokes like heck when u melt it down but it worked...
Jack

[cajun shooter]

It is very simple to use the solder with none of the problems my fellow casters, you light the fumes when you add the solder. WALA!! This has worked for me for many a year. I use one of the longer fireplace propane lighters.

[fecmech]

About 2 years ago I bought 40 rolls of 63/37 solder from Grainger for $2.30/roll and it's rosin core. I alloy my lead in 32-35 lb. batches to give me 2% SN and like Cajun I just light off the fumes. The rosin is a great flux and really does a nice job cleaning up the melt.

[leadman]

I also bought from Grainger awhile back. Makes a great addition with the tin. The rosin flux does an excellent job of cleaning the lead.

[buck1]

good idea.

[zomby woof]

I also bought from Grainger awhile back. Makes a great addition with the tin. The rosin flux does an excellent job of cleaning the lead.

I was making large batches a while ago, When I dropped my solder in (a pound at a time) it seemed to make the melt, what I would call "creamy". Works great.