Sorry for the delay in replying, this issue is now clear.
The kit I have does indeed have application brushes, as pointed out by TenTon, the instructions also refer to dilution by Ethanol or industrial alcohol (difference?), it then goes on to call the post dilution substance 22A or 22E as referenced by wrench1.
In my intended application (veteran automotive) neat application would be easily possible.
Thank you both.