Yes, it can be beneficial to lightly cover coatings existing on the underside of the vehicle as a further protective measure.
FAQ Category: dynax S-50
Dynax-S50 can be removed with white spirit.
The lance can be cleaned out by attaching it to Ferrosol, or alternatively, the lance can be brushed over with white spirit after use and kept in a plastic zip lock bag to prevent it from drying out.
Yes, you can use Dynax-S50 from an air spray pump. If you want to change the viscosity you can add white spirit providing the air pump is ok for use with white spirit. The viscosity can also be changed by standing in a bath of hot water.