One of my miscreant kids sprayed some green Silly String (plasticized "string" that comes from an aerosal can and hardens - REALLY hardens - if Dad is irresponsible and lets it just sit there for days or months...) on our white vinyl siding and I'm finding it tough to remove.
I've tryed warm sudsy water, ammonia, a plastic scraper that cleans crud from a pizza stone, plasticized brillo-type pads, and the stuff is just not coming off.
I guess I could just keep throwing the proverbial kitchen sink at it, but am hoping that someone here has a sure-fire way to remove it.
From the tiny amount I've gotten off so far, it doesn't look like staining is an issue.