Fluxes

Flux.

Used With.

Metals to be Joined.

Resin.

Copper bit or blowpipe.

Lead, tin. copper, brass, and tinned metals.

Tallow, unsalted.

Blowpipe or wiping process.

Lead, tin, or tinned metals.

Sal ammoniac.

Copper bit or blowpipe.

Copper, brass, and iron.

Muriatic acid.

Copper bit.

Dirty zinc.

Chloride of zinc.

Copper bit or blowpipe.

Clean zinc, copper, brass, tin, and tinned metals.

Resin and sweet oil

Copper bit or blowpipe.

Lead and tin tubes

Borax.

Blowpipe.

Iron, steel, copper, and brass.

Solders

Variety.

Hard.

Soft.

Fusing Point.

Zinc.

Copper.

Silver.

Tin.

Lead.

Bismuth.

Spelter, hardest..........................

1

2

700°

Spelter, hard .............................

2

3

Spelter, soft ..................

1

1

550°

Spelter, fine ...............-...............

2

2

1/4

Silver, hard................................

1

4

Silver, medium ..........................

1

3

Silver, soft.................................

1

2

Plumbers', coarse ......................

1

3

480°

Plumbers', ordinary...................

1

2

440°

Plumbers', fine ..........................

2

3

400°

Tinners'.......................................

1

1

370°

For tin pipe ................................

3

2

330°

For tin pipe ................................

4

4

1