Is my problem caused by lead-free solder, lack of extra flux, or both?

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I'm trying to fix a friends' Mackie powered sub, and I'm soldering two electrolytics in the power supply. Using a Hakko soldering station (with a conical tip) and lead-free solder, I can't seem to get the joint hot enough to flow properly. I wasn't adding any flux to the joint beforehand.

I should just have to hold the iron tip to the lead and pad for 2 or 3 seconds, correct? The solder wasn't even beginning to melt at that point...

Going to try after work today with "normal" solder and rosin flux, but I'm wondering if it's the material I'm using that's causing problems, or something wrong that I'm doing.

Thanks in advance!

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Topic - Is my problem caused by lead-free solder, lack of extra flux, or both? - Glowbug 07:33:05 05/24/10 (5)

RE: Is my problem caused by lead-free solder, lack of extra flux, or both? - Awe-d-o-file 11:30:18 05/24/10 (0)

Lead-free solder sucks! - caspian@peak.org 11:05:59 05/24/10 (2)

RE: Lead-free solder does not suck - unclestu 12:12:02 05/24/10 (0)

Boy, do I agree with that! - clifff 11:42:20 05/24/10 (0)

RE: Is my problem caused by lead-free solder, lack of extra flux, or both? - Mike B. 10:30:11 05/24/10 (0)

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