>>10775880>>10775885Rather than looking for nail or floor polish, use something clearly labelled as a water-based clear coating like
>>10775066 or art coatings like pic. Waterbased implies it won't attack the plastics and can be thinned with water if you need it to seep into deeper crevices.
Kiki is either a PU or Acrylic coating too, just pre-thinned and re-bottled specific for that use. Consider it if it's cheaper, i guess.
The floor and nail polish are only recommended because some of them are the same acrylic coating too, but you need to check their components to be sure. Their formulations vary by brand and the same brand can also have different formulations for different regions, it's not worth the trouble i think.