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Thread Starter 

I am looking to add some decals and some recoloring of my HD 439s. I pretty much got it sorted with what I am going to do, but except for some parts. 


My first question is that will I need any sanding or priming for the headphones if I am using this

It says it does not require sanding or priming, but I am not sure what would be better.


My second question is that I plan on making the decals from printed images, would the computer paper let the let the spray bleed through?


And my final question is can I remove the grills on the HD 439s? I want to remove them because spray paint will be painting the back and I cannot cover the back without removing it. If so, how?


Thanks in advance (also some links to guides would be much appreciated)