Right now I use a fixative that is made by Krylon, that I have no idea what it's called though. I also have some flat sealer made by Tamiya. Which I don't know is any good yet because I haven't tried it.

I was wondering what are the best spray one and brush on sealers to use on toys that your painting and one toys that you aren't painting but you just want to seal them.

I have a lot of knockoffs and I tend to like improving their quality by sanding the bad plastic parts and painting them. Theres some parts though I wan't to seal without painting. I wan't to know what paint sealers are good on plastic. I'm mostly doing this because I wan't to either gloss or make the plastic look more matte. Which would make knockoff plastic look a bit better. Plus it wouldn't hurt to make the toy a little more durable. Also i'm concerned with the factor that knockoffs might have lead paint. So I would like to seal the toys. Usually the factory paint job is really bad so I intend on fixing them anyways. Either way I'd like some advice on the matter. Thanks in advance.