How to paint numbers over durethane?

[Jared]

After looking at vinyl sticker prices, I believe I am going to just paint my numbers on my plane. I am going to use the same shade of yellow and redo the starburst while I'm at it. My question is, how do I prep the paint that is already on the aircraft? I am almost positive the paint that was used was durethane. I was thinking about using latex over the durethane, but I'm starting to think I should just go with something that's already on there. Thanks in advance!

Jared

[Supervee]

I don't know if Latex goes over anything but Latex….
For the cost, and the fact that if it goes wrong, you do it twice, I would go with whatever is on the airplane already.