Flux-core question

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The other day we had to weld some angles onto some tubing to hold bearings on for some big rollers, anyhow we've been running it on a cp-300 miller and we have never changed the polarity on the leads to run flux (i read on this site that you are supposed to). our old machine ran it flawlessly and we have it lent out to someone to check the polarity on it, is there any real ill affects from this? And are there any farther steps on changing the polarity to run flux on the cp300 besides the leads? thanks for the help guys!
Reply:It should state on the package "DCEP" or "DCEN" if not call the local weld store or go to BING and enter the part number on the box.Innershield (self shielding type) wires are DCEN (electrode negative).Dual Sheild (gas sheilded flux cored type ) are often DCEP.Matt
Reply:All gas shielded flux cored electrodes that I am aware of runs on DC electrode positive. Some self shielded flux cored electrodes run DC electrode negative and some electrode positive. Miller CP-300 are generally set up to run GMAW electrodes on DC electrode positive.
Reply:Ah ok guys thanks for the info its dual shield!
Reply:Originally Posted by Matt_MaguireIt should state on the package "DCEP" or "DCEN" if not call the local weld store or go to BING and enter the part number on the box.Innershield (self shielding type) wires are DCEN (electrode negative).Dual Sheild (gas sheilded flux cored type ) are often DCEP.Matt
Reply:Originally Posted by jdh239Don't go to BING, go to GOOGLE.
Reply:Originally Posted by jdh239Don't go to BING, go to GOOGLE.
Reply:Originally Posted by Matt_MaguireI usually do use Google but somehow Bing knows part numbers. If you have something with a part# on it Bing is amazing at knowing what it is and who makes it.Matt
Reply:Originally Posted by jdh239That is good to know.  I have to say I have a bias for anything non-microsoft as I work in the industry and they are our main competitor.