Hey aurora, good idea on the substitute for masking tape. But I have used all the paints I usggested and all work on all plastics (except Rustoleum, without using a plastic safe primer first) I have repainted, including trains, Plasticville and K-Lineville buildings.
The reason I strongtly suggest a primer is two-fold: it will help with final coat paint adhesion and even coating, and it prevents light from shining through illuminated items like a locomotive shell. Lionel in the past used colored plastic, but K-Line used white styrene. Light colors like yellow, orange, red, and white will allow light to glow through the shell.
I haven’t used the Krylon Plastic Fusion paint yet, but others here have and say they like it. But in my experience, without stripping first is that logos, hearlds and lettering from the previous paint scheme WILL show though on your new paint job with a slightly raised area where the old lettering, logos were.
My experience on the K-Line S-2’s is that the old lettering will also show through without stripping first.
So I strip the paint first, the add primer, and then paint whith plastic safe paint, right?
Yes, Grayson, in a nutshell that’s it. You do need to wash the shell after stripping, or if you should decide not to strip it, before you begin any painting. Now I don’t know what S-2 shell you have. Some of the older ones had shells in molded color, which helps with the opaque/translucent issue. But those older S-2’s also had a deep channel between the side hood doors. K-Line later modified the shell to fill in this channel which made decoration for them much easier… and will make decaling much easier for you.
If you have one of these older shells, I’d strongly suggest using some Plastruct styrene to fill in some of the depth of those channels between the side hood doors. The window insert doesn’t come out of most very easily: try banging the shell against your hand or a padded ch