I recently obtained a Centurion Dave Scott Ironman, red and white. It's cleaning up quite nicely. The aero brake hoods (red), are quite sticky. I've used dishwashing soap with a brush, but after drying, still remained quite sticky. I then tried Simple Green with the same results. I don't observe anything actually on the hoods that would result in the stickiness. When compared to the hoods of a similiar vintage bike, it's very easy to notice the difference.

So, whats worked for you in cleaning older brake hoods?

Thanks,
Drew