Recommended use:
As a fast drying welding or transportprimer on blast cleaned steel. May only be used on blast cleaned steel.


Main characteristics :
Good adhesion on blast cleaned steel. Suitable for use as a transport or weldingprimer. Can be recoated with conventional industrial paints or water borne paints. Can be easily applied by conventional airspray and airless spray. Dry to handle after approx. 8 minutes on steel preheated to 25 C. Up to 35 micron d.f.t. good weldable. The product can be adjusted with normal tapwater to obtain the required film thickness, depending on temperature and conveyor velocity.

Surface preparation:
Steel blast cleaned to Swedish standard sis 055900 grade Sa 2½ and surface roughness of maximal 50 micron gives the best results. As a minimum requirement the surface should be dry, clean and free from rust.


Overcoating:
In cases where a subsequent coat has to be applied on top of a freshly applied coat of KPC 7205 aqua weldingprimer AC, clean the substrate of dust. A freshly applied coat can be recoated with water borne paint after two hours. If a solvent borne paint is used on top of this primer, the removal of dust is sufficient and an interval of 3 days is recommended.

Recoating of old paints requires complete removal of paint on damaged and rusted areas as mentioned under surface preparation. These areas have to be spot primed prior to the application of the new coat over the total surface. If rotating equipment is used for roughening the surface or to remove rust, removal of oil and grease must be done prior to the use of this equipment.