Prep for adhering decals

[lreppond]

I’m going to be replacing my warn decals on speed relays with new reproduction ones. I know the proper placement or orientation but I’m not sure how I should remove the old adhesive that’s literally bounded to the tops.  I was thinking about using denatured alcohol but I don’t want to damage the relays.  Any advice?  Goo gone? Orange oil? Etc.   

[Jonny B]

I have used goo gone (or similar) with good results. Be sure to clean that off with some light solvent. If you put the stuff on a clean cloth that avoids the potential for an "oops" of liquid on the relay.

[GM]

Peel, then WD-40

[ejboyd5]

3M Prep-Sol, none better.

[lreppond]

I had both GooGone and WD-40 in my garage.  I started out with just a little spray of WD-40 on a microfiber cloth.  It took a little time to soften the adhesive but once it did it came off with not much effort (rubbing). After it completely evaporated, I wiped it down with 90% IPA.  As an added bonus, it left the plastic shell of the replay looking new.

Unfortunately, I looked up 3M PrepSol and it’s unavailable in California even though it’s water based and low VOC!  Shouldn’t surprise me! 

Thanks gentlemen for your suggestions. 

[DavidAPease]

Len,

I'm very fond of a good IPA,  and have even brewed a few decent ones myself,  but using one in this way is a new idea to me!   

      -David

[66andBlue]

...
Unfortunately, I looked up 3M PrepSol and it’s unavailable in California even though it’s water based and low VOC!  Shouldn’t surprise me! 
Thanks gentlemen for your suggestions. 

I have used a 3M product in a spray can that is quite good, gentle on paint surfaces and available here in CA:
https://www.amazon.com/3M-03618-Adhesive-Remover-oz/dp/B000BQYA7W

[Pinder]

i just replaced mine. I just pealed them off and used Eastwood pre clean. You could also just rube it off with goof off or other solvent.