are my pixel rusting ??

[barbotte]

hello i bough new pixel in feb and i put them in a bowl or water for 24 water ,,,, now i am in the process of intaling them on my emt and i notice some are yello ,,,, is that corosion or is it pcb color ... the set is 130 pixel and maybe half are like that ... any idea ?
thanks
https://www.dropbox.com/s/r7uxekh4yv01leq/Pixel%20rust%202.jpg?v=0mcn

https://www.dropbox.com/s/pn7c21bgg7hdlnh/Pixel%20rust%203.jpg?v=0rc-

 

[fasteddy]

I would say thats corrossion. they may be solid resin filled but it doesnt stop moisture from getting in through the front. The rust is on the 4 pins that come from the LED and go to the board
I have pixels like this and is one of the reasons ive used strip a lot more than strings.