I recently order a motorcycle tank kit. I cleaned the tank out with the Aqua clean and let dry. This actually did a good job and a lot of loose rust was washed out leaving quite a bit of bare metal visible.
I then used the rust blast for about 30 minutes. I rinsed it as thouroughly as possibly and let it dry. A rust like coating formed over most of the surfaces even the ones that were clean after the Aqua clean. Some of this can be rubbed off.
How should I proceed before using the rust seal?
cheers