+x+xMost infusion grade spray tacs are largely invisible. If they are causing you issues, you are probably using way too much. You don't need a lot - the vacuum should be doing most of the work. You just want to give a very very slight tac.
If you are really struggling, you can also try using an in-mould coating first, and then that will make your spray tac completely invisible regardless of how much you use.
Which spray are you using now Hanaldo?
For visual applications i like to use isotacker from sicomin, and aerofix 2 for everything else as this one is much tackier and easier to work with. Used some other stuff when visiting other workshops and can't say there is a night and day difference between all the products I worked with.
The isotacker does completely dissolve which is nice when used on the tool directly tho.