Ø You may use either propane, or oxy-acetylene with a 0 or 1 tip for small parts (steel or brass hydraulic hose fittings, for example).

Ø      Use oxy-acetylene with a 1 or 2 tip for repairing larger parts (i.e. cast iron manifold).

Ø      When working on very large parts such as a cast iron engine block, use oxy-acetylene with a 5 or 6 tip.  You may even use a cutting tip.

Ø      It is not necessary to wear dark glasses while using SS6.  Safety glasses, of course, are always recommended.

1. Thoroughly clean entire area to be repaired or connected.
2. While pre-heating repair area, bring rod in every 10 seconds or so. When metal approaches the rod's flow temperature, flux will melt off rod. Not before. When melting flux off - lay rod directly on metal and roll - rather than attempting to "drip" it off.
3. Use torch flame to spread liquefied flux over repair area.
4. Making sure tip of rod is touching metal (without pressing), bring flame in. Get in close with the torch.
5. Melt a small deposit off the end of the rod and flow it out. repeat this process until repair is complete.
6. *If the rod balls up, it simply means the metal is not yet hot enough to pull the rod material in. keep heating, bringing the rod in periodically until it flows.