It depends upon the coating used but many of these coatings will respond to cleaning with "Purple Power" spray cleaner. Paint thinner is a more aggressive treatment but try Purple Power first and then decide whether the sticky texture is still too bad to use.
A lot of consumer stuff was finished with these compounds in the last 20 years, probably partially a result of the global controls/reduction of VOCs in paint/finishing compounds.
I have a really nice shortwave receiver originally designed by the defunct R L Drake company in the U.S. and intended to be produced by German firm Grundig but due to bankruptcy the radio was ultimately manufactured by U.S. based Eton. It was basically too annoying to use after a year due to the coating but I first cleaned with alcohol and then a few years later with Purple Power. After the second cleaning, the finish has been tack free for years.
Another Eton E1 XM owner reached out to Eton corp and Purple Power was their officially recommended product and they included instructions on how to overcome the sticky finish. The link is here but if it gets removed due to forum guidelines, just do a google search for "Eton's solution for sticky radios" and you will find it:
https://swling.com/blog/2018/08/etons-solution-for-sticky-radios/
Rodger
EOS 1DX M3, 1DX M2, 1DX, 5DS R, M6 Mark II, 1D M2, EOS 650 (film), many lenses, XF400 video
