Car Sealant Would Finger Nail Polish Work As A Temporary Sealant For A Dent On A Car?

Would finger nail polish work as a temporary sealant for a dent on a car? - car sealant

Basically, one day I realized that I had a small dent in the car, which goes into the painting. They told me that if I do something, a kind of seal that the rust that would be bad. Because you can not afford to fix it, however, that nail polish work as a temporary sealant? Was there an alternative to cheap, at least not worse?

Thank you.