Help with cleaning a carbon seat tube
 

I’ve finally managed to remove a very stuck dropper post from my carbon Whyte frame this evening. It took many days of being soaked in ACF-50 put in from the BB and a lot of patience. Now that I have removed the seat post; I have ordered a new dropper, however the seat tube really needs to be cleaned out as I think there will be a lot of corrosion in there. Has anybody got any tips for this please?

Something like this...

https://www.amazon.com/Straw-Brush-C...62263041&psc=1