Thanks Guys!! The Tamiya tape I have is 3mm. On this interior I sprayed the whole tub (back seat, side panels and the separate front seat) white enamel. Then brush painted free hand the craft red on the seat and side panels (both of which are to be red and white. Came out just so-so. I actually did this twice. So, gonna strip off the red which is craft paint again and give the Tamiya tape a try, and spraying the red. Maybe third time will be a charm.