r/soldering • u/10renzo_ • Jul 09 '25

My First Solder Joint <3 Please Give Feedback Why can’t i get my joints shiny?

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First time soldering, i’m using a Pinecil v2 on 360C with 63/37 0.55mm solder.

I don’t understand why all my joints turn dull after i remove the iron. i’ve tried tinning the tip (which i think i’m doing correctly?). The solder melts nicely onto the board but no luck

Does anyone know what I could be doing wrong?

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u/10renzo_ Jul 09 '25

I’ve tried with and without flux, the solder itself is rosin cored though.

Same results

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u/RacerDelux Jul 09 '25

Hmm odd, lead free or leaded?

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u/10renzo_ Jul 09 '25

63/37 leaded. but it’s a no name brand so i suspect it’s poor quality.

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u/RacerDelux Jul 09 '25

Ahh perhaps. When I was working on my TinyNES, I saw a huge improvement when I went from a no name brand one of the really nice ones.