When sound deadening, outer and inner skin?

[02envoy 10+ year member]

I will be using spectrum liquid tomorrow from second skin. Anyone here recommend doing both the inner and outer metals of the door? //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

Thanks for your input

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[Acidburn 5,000+ posts]

yes, do both

 

[iagrdshaka 5,000+ posts]

Biggest mistake is when people dont deaden the inner part of doors. Make sure you do that.

 

[JAZN 5,000+ posts]

inner and outer. then cover up the big holes on the inner with plexi/mdf