You could get get better results by spray gun
I don't have a show truck so the rattle can worked for me.
Its a budget option
Good luck
One other small tip for anyone restoring gauges
Don't get paint on the inside housing where the fuel gauge mount. This area needs to be clean bare metal. It is the ground path. It is a mistake many of us have made.
The instrument lights ground on the housing also.
Tape off the ears of the housing also so they can complete the ground path to the dash.
Sorry O.P. Way off your original question
Denny has a little info on interior paint on his 50
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