I needed to find a way to reduce the stickyness of masking tape because it was pulling the paint away or the adhesive was causing some texture. I had already tried the internet for the usual ways.
So I made up a paste of flour and water. Just an eggcup of paste, like single cream.
They I brushed this onto the model. Using old newspaper strips I created my own masking tape and put it onto the wet paste.
If I need masking on a detail such as a dashboard switch (very tiny) I simply pained some paste over it.
Then I sprayed paint or lacquer.
The following morning I popped my model in the bath with water and left it floating. 10 minutes later the newspaper had fallen off, paste had dissolved and the model was gleaming.