I´m finish to restored my 1979 flh 80, and, when i try to fit the fender decal, NOS bougth on ebay,´I can´t be able to peel both sides of the stickers, specially the outher face,there´s any method or product to work whith old stickers?

 

If separating the layers is the issue, I've used a razor blade - very carefully - for an initial lift and separation. Also, folding the edge back such that it as close to horizontal as possible and going slowly vs. pulling straight up from the decal will increase the odds that the decal doesn't come up with the paper or plastic layer that you are removing.

 

it seems that the paper layer has joined with the sticker, I try to wet the paper, even with warm water and... nothing, i think if there is any product like alcohol, wd40,etc. which works, I´m afraid to damage them, have crossed the atlantic sea and it´s impossible to find in my country

 

Sounds like you have a very delicate problem. Possibly heat from a hair dryer might soften the adhesive, but too much heat and the decal may deform. Do you have access to 3M adhesive remover? It is available in auto parts stores in the states. Using that and a small paint brush, you could moisten the paper and refresh as the solvent evaporates. That might allow you to get the paper off. The decals would need to air dry for a while as the adhesive might then be too soft for immediate application. 3M adhesive remover is a low volatility solvent, it doesn't evaporate quickly and doesn't seem to impact paint or vinyl.

 

Can you post a picture of the decal and the backing paper? I had this happen to me last year on some impossible to find decals. It probably took 8-10 hours to get them on the tank. We ended up soaking them in warm water with just a few drops of dish soap for several hours to soften the glue. We cautiously used a heat gun as we applied the decal also. My problem wasn't with the back of the decal, it was that the transfer paper would not release, exactly what you are describing. I would not use any chemicals if it was me.

 

sorry, the sticker and the backing paper does not exist yet, I try to solve the problem with sticker removal, and, unfortunately the removal also dissolve the sticker, first the print and after , the sticker acquires a rubber texture.with the remains, I´ll try to make the sticker as close as possible in a local shop